ship: v0.1 Foundation milestone complete (#1)

internal/cli/audit.go

@@ -0,0 +1,60 @@
+package cli
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+var (
+	auditLimit int
+)
+
+var auditCmd = &cobra.Command{
+	Use:   "audit",
+	Short: "View orca audit log",
+	Long:  "Display the most recent audit log entries (security-first observability).",
+}
+
+var auditListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List recent audit log entries",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		db, closer, err := openDB()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		entries, err := store.NewAuditRepo(db).List(ctx, auditLimit)
+		if err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(entries)
+		}
+		if len(entries) == 0 {
+			fmt.Fprintln(cmd.OutOrStdout(), "No audit entries.")
+			return nil
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "%-22s  %-12s  %-20s  %-30s  %-10s\n", "TIMESTAMP", "ACTOR", "ACTION", "RESOURCE", "RESULT")
+		for _, e := range entries {
+			fmt.Fprintf(cmd.OutOrStdout(), "%-22s  %-12s  %-20s  %-30s  %-10s\n",
+				e.Timestamp.Format("2006-01-02T15:04:05Z"), e.Actor, e.Action, e.Resource, e.Result)
+		}
+		return nil
+	},
+}
+
+func init() {
+	auditListCmd.Flags().IntVar(&auditLimit, "limit", 50, "max entries to show")
+	auditCmd.AddCommand(auditListCmd)
+	rootCmd.AddCommand(auditCmd)
+}

internal/cli/daemon.go

@@ -0,0 +1,76 @@
+package cli
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+
+	"github.com/spf13/cobra"
+
+	"git.cloudinit.dev/coreci/orca/internal/daemon"
+)
+
+var (
+	daemonAddr string
+)
+
+var daemonCmd = &cobra.Command{
+	Use:   "daemon",
+	Short: "Run the orca daemon (HTTP API + health checks)",
+	Long:  "Start the orca daemon. Listens on the configured address for health and API requests.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		db, closer, err := openDB()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		srv := daemon.NewServer(daemon.Options{
+			DB:    db,
+			Log:   newLogger(),
+			Addr:  daemonAddr,
+			Actor: "daemon",
+		})
+		srv.MarkReady()
+
+		errCh := make(chan error, 1)
+		go func() {
+			err := srv.Start()
+			if err != nil && !errors.Is(err, http.ErrServerClosed) {
+				errCh <- err
+			}
+		}()
+
+		fmt.Fprintf(cmd.OutOrStdout(), "✓ orca daemon listening on %s\n", daemonAddr)
+		fmt.Fprintln(cmd.OutOrStdout(), "  /healthz    - liveness")
+		fmt.Fprintln(cmd.OutOrStdout(), "  /readyz     - readiness (db + ready flag)")
+		fmt.Fprintln(cmd.OutOrStdout(), "  /v1/status  - status JSON")
+		fmt.Fprintln(cmd.OutOrStdout(), "  /v1/jobs    - list jobs")
+		fmt.Fprintln(cmd.OutOrStdout(), "  /v1/nodes   - list nodes")
+		fmt.Fprintln(cmd.OutOrStdout(), "  /v1/tasks   - list tasks")
+		fmt.Fprintln(cmd.OutOrStdout(), "  press Ctrl+C to stop")
+
+		ctx, stop := signal.NotifyContext(cmd.Context(), os.Interrupt, syscall.SIGTERM)
+		defer stop()
+
+		select {
+		case <-ctx.Done():
+			fmt.Fprintln(cmd.OutOrStdout(), "\nshutting down...")
+			shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
+			defer cancel()
+			return srv.Shutdown(shutdownCtx)
+		case err := <-errCh:
+			return err
+		}
+	},
+}
+
+func init() {
+	daemonCmd.Flags().StringVar(&daemonAddr, "addr", ":8080", "listen address")
+	rootCmd.AddCommand(daemonCmd)
+}

internal/cli/init.go

@@ -0,0 +1,38 @@
+package cli
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/spf13/cobra"
+)
+
+var initCmd = &cobra.Command{
+	Use:   "init",
+	Short: "Initialize local orca state directory",
+	Long:  "Create the local orca state directory at ~/.orca/ and write a default config file.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return fmt.Errorf("get home dir: %w", err)
+		}
+		orcaDir := filepath.Join(home, ".orca")
+		if err := os.MkdirAll(orcaDir, 0o755); err != nil {
+			return fmt.Errorf("create orca dir: %w", err)
+		}
+		result := map[string]string{
+			"path":   orcaDir,
+			"status": "initialized",
+		}
+		if jsonOutput {
+			return printJSON(result)
+		}
+		printText("✓ Initialized orca state at %s\n", orcaDir)
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(initCmd)
+}

internal/cli/job.go

@@ -0,0 +1,223 @@
+package cli
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/spf13/cobra"
+
+	"git.cloudinit.dev/coreci/orca/internal/engine"
+	"git.cloudinit.dev/coreci/orca/internal/jobspec"
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+var jobCmd = &cobra.Command{
+	Use:   "job",
+	Short: "Manage orca jobs",
+	Long:  "Run, list, stop, and inspect orca jobs.",
+}
+
+func jobExecutor() (*engine.Executor, func() error, error) {
+	db, closer, err := openDB()
+	if err != nil {
+		return nil, nil, err
+	}
+	jobs := store.NewJobRepo(db)
+	tasks := store.NewTaskRepo(db)
+	return engine.NewExecutor(jobs, tasks, newLogger()), closer, nil
+}
+
+var jobRunCmd = &cobra.Command{
+	Use:   "run <spec.hcl>",
+	Short: "Run a job from an HCL spec file",
+	Long:  "Submit a job spec, execute its tasks, and persist the result.",
+	Args:  cobra.ExactArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		spec, err := jobspec.ParseFile(args[0])
+		if err != nil {
+			return err
+		}
+
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Minute)
+		defer cancel()
+
+		exec, closer, err := jobExecutor()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		job := &model.Job{
+			ID:     uuid.NewString(),
+			Name:   spec.Job.Name,
+			Spec:   args[0],
+			Status: model.JobStatusPending,
+		}
+		if err := exec.Run(ctx, job, toTaskSpecs(spec.Tasks)); err != nil {
+			if jsonOutput {
+				_ = printJSON(map[string]any{"id": job.ID, "status": "failed", "error": err.Error()})
+				return err
+			}
+			fmt.Fprintf(cmd.ErrOrStderr(), "✗ Job %s failed: %v\n", job.ID, err)
+			return err
+		}
+		if jsonOutput {
+			return printJSON(map[string]any{"id": job.ID, "name": job.Name, "status": "complete"})
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "✓ Job complete: %s (%s)\n", job.ID, job.Name)
+		return nil
+	},
+}
+
+var jobListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List all jobs",
+	Long:  "Display all jobs and their status.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		db, closer, err := openDB()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		jobs, err := store.NewJobRepo(db).List(ctx)
+		if err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(jobs)
+		}
+		if len(jobs) == 0 {
+			fmt.Fprintln(cmd.OutOrStdout(), "No jobs. Use 'orca job run <spec.hcl>' to submit one.")
+			return nil
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "%-36s  %-20s  %-12s  %-8s\n", "ID", "NAME", "STATUS", "EXIT")
+		for _, j := range jobs {
+			fmt.Fprintf(cmd.OutOrStdout(), "%-36s  %-20s  %-12s  %-8d\n", j.ID, j.Name, j.Status, j.ExitCode)
+		}
+		return nil
+	},
+}
+
+var (
+	stopID string
+)
+
+var jobStopCmd = &cobra.Command{
+	Use:   "stop [job-id]",
+	Short: "Stop a running job",
+	Long:  "Mark a job as stopped. Note: this is a soft stop (cancel context for the daemon).",
+	Args:  cobra.MaximumNArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		id := stopID
+		if id == "" && len(args) > 0 {
+			id = args[0]
+		}
+		if id == "" {
+			return fmt.Errorf("job id required (--id or argument)")
+		}
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		db, closer, err := openDB()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		repo := store.NewJobRepo(db)
+		job, err := repo.Get(ctx, id)
+		if err != nil {
+			if errors.Is(err, store.ErrNotFound) {
+				return fmt.Errorf("job not found: %s", id)
+			}
+			return err
+		}
+		if err := repo.UpdateStatus(ctx, id, model.JobStatusStopped, 130); err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(map[string]any{"id": id, "status": "stopped", "previous_status": job.Status})
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "✓ Job stopped: %s\n", id)
+		return nil
+	},
+}
+
+var jobLogsCmd = &cobra.Command{
+	Use:   "logs [job-id]",
+	Short: "Show task output for a job",
+	Long:  "Display captured stdout/stderr for all tasks in a job.",
+	Args:  cobra.MaximumNArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		id := stopID
+		if id == "" && len(args) > 0 {
+			id = args[0]
+		}
+		if id == "" {
+			return fmt.Errorf("job id required (--id or argument)")
+		}
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		db, closer, err := openDB()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		taskRepo := store.NewTaskRepo(db)
+		tasks, err := taskRepo.ListByJob(ctx, id)
+		if err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(tasks)
+		}
+		if len(tasks) == 0 {
+			fmt.Fprintln(cmd.OutOrStdout(), "No tasks for this job.")
+			return nil
+		}
+		for i, t := range tasks {
+			fmt.Fprintf(cmd.OutOrStdout(), "--- task[%d] %s (%s) exit=%d ---\n", i, t.Command, t.Status, t.ExitCode)
+			if t.Stdout != "" {
+				fmt.Fprintln(cmd.OutOrStdout(), t.Stdout)
+			}
+			if t.Stderr != "" {
+				fmt.Fprintln(cmd.OutOrStderr(), t.Stderr)
+			}
+		}
+		return nil
+	},
+}
+
+func init() {
+	jobStopCmd.Flags().StringVar(&stopID, "id", "", "job id")
+	jobLogsCmd.Flags().StringVar(&stopID, "id", "", "job id")
+
+	jobCmd.AddCommand(jobRunCmd)
+	jobCmd.AddCommand(jobListCmd)
+	jobCmd.AddCommand(jobStopCmd)
+	jobCmd.AddCommand(jobLogsCmd)
+	rootCmd.AddCommand(jobCmd)
+}
+
+func toTaskSpecs(in []jobspec.TaskSpec) []engine.TaskSpec {
+	out := make([]engine.TaskSpec, len(in))
+	for i, t := range in {
+		out[i] = engine.TaskSpec{
+			Name:    t.Name,
+			Command: t.Command,
+			Args:    t.Args,
+			Env:     t.Env,
+		}
+	}
+	return out
+}

internal/cli/node.go

@@ -0,0 +1,176 @@
+package cli
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+	"log/slog"
+	"os"
+	"path/filepath"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/spf13/cobra"
+
+	"git.cloudinit.dev/coreci/orca/internal/engine"
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+func dbPath() string {
+	if p := os.Getenv("ORCA_DB"); p != "" {
+		return p
+	}
+	home, _ := os.UserHomeDir()
+	return filepath.Join(home, ".orca", "orca.db")
+}
+
+func openDB() (*sql.DB, func() error, error) {
+	db, err := store.Open(dbPath())
+	if err != nil {
+		return nil, nil, err
+	}
+	return db, db.Close, nil
+}
+
+func newLogger() *slog.Logger {
+	return slog.New(slog.NewJSONHandler(os.Stderr, &slog.HandlerOptions{Level: slog.LevelInfo}))
+}
+
+func nodeRegistry() (*engine.NodeRegistry, func() error, error) {
+	db, closer, err := openDB()
+	if err != nil {
+		return nil, nil, err
+	}
+	repo := store.NewNodeRepo(db)
+	audit := engine.NewAudit(store.NewAuditRepo(db), newLogger())
+	return engine.NewNodeRegistry(repo, audit, newLogger()), closer, nil
+}
+
+var (
+	joinName string
+	joinAddr string
+	leaveID  string
+)
+
+var nodeCmd = &cobra.Command{
+	Use:   "node",
+	Short: "Manage orca nodes",
+	Long:  "Join, leave, or list orca nodes in the registry.",
+}
+
+var nodeJoinCmd = &cobra.Command{
+	Use:   "join",
+	Short: "Join a node to the orca registry",
+	Long:  "Register a node in the local orca registry. Persisted to SQLite.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		if joinName == "" {
+			return fmt.Errorf("--name is required")
+		}
+		if joinAddr == "" {
+			joinAddr = "localhost:8443"
+		}
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		registry, closer, err := nodeRegistry()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		node := &model.Node{
+			ID:       uuid.NewString(),
+			Name:     joinName,
+			Address:  joinAddr,
+			State:    model.NodeStateReady,
+			JoinedAt: time.Now().UTC(),
+			LastSeen: time.Now().UTC(),
+		}
+		if err := registry.Join(ctx, node); err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(node)
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "✓ Node joined: %s (%s) at %s\n", node.ID, node.Name, node.Address)
+		return nil
+	},
+}
+
+var nodeLeaveCmd = &cobra.Command{
+	Use:   "leave [node-id]",
+	Short: "Remove a node from the orca registry",
+	Long:  "Mark a node as left. Use --id to specify, or pass as argument.",
+	Args:  cobra.MaximumNArgs(1),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		id := leaveID
+		if id == "" && len(args) > 0 {
+			id = args[0]
+		}
+		if id == "" {
+			return fmt.Errorf("node id required (use --id or pass as argument)")
+		}
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		registry, closer, err := nodeRegistry()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		if err := registry.Leave(ctx, id); err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(map[string]string{"id": id, "state": "left"})
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "✓ Node left: %s\n", id)
+		return nil
+	},
+}
+
+var nodeListCmd = &cobra.Command{
+	Use:   "list",
+	Short: "List all nodes in the orca registry",
+	Long:  "Display all registered nodes and their state.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		ctx, cancel := context.WithTimeout(cmd.Context(), 5*time.Second)
+		defer cancel()
+
+		registry, closer, err := nodeRegistry()
+		if err != nil {
+			return err
+		}
+		defer closer()
+
+		nodes, err := registry.List(ctx)
+		if err != nil {
+			return err
+		}
+		if jsonOutput {
+			return printJSON(nodes)
+		}
+		if len(nodes) == 0 {
+			fmt.Fprintln(cmd.OutOrStdout(), "No nodes registered. Use 'orca node join' to add one.")
+			return nil
+		}
+		fmt.Fprintf(cmd.OutOrStdout(), "%-36s  %-20s  %-22s  %-10s\n", "ID", "NAME", "ADDRESS", "STATE")
+		for _, n := range nodes {
+			fmt.Fprintf(cmd.OutOrStdout(), "%-36s  %-20s  %-22s  %-10s\n", n.ID, n.Name, n.Address, n.State)
+		}
+		return nil
+	},
+}
+
+func init() {
+	nodeJoinCmd.Flags().StringVar(&joinName, "name", "", "node name (required)")
+	nodeJoinCmd.Flags().StringVar(&joinAddr, "addr", "", "node address (default localhost:8443)")
+	nodeLeaveCmd.Flags().StringVar(&leaveID, "id", "", "node id")
+
+	nodeCmd.AddCommand(nodeJoinCmd)
+	nodeCmd.AddCommand(nodeLeaveCmd)
+	nodeCmd.AddCommand(nodeListCmd)
+	rootCmd.AddCommand(nodeCmd)
+}

internal/cli/root.go

@@ -0,0 +1,52 @@
+package cli
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	version   = "0.1.0-dev"
+	gitCommit = "unknown"
+	buildTime = "unknown"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "orca",
+	Short: "Orca — offline/CLI-first orchestration engine",
+	Long: `Orca is a minimalist, offline-first, CLI-first orchestration engine
+inspired by HashiCorp Nomad, prioritizing stability, security, and simplicity
+over feature richness.`,
+	SilenceUsage:  true,
+	SilenceErrors: true,
+}
+
+var jsonOutput bool
+
+func init() {
+	rootCmd.PersistentFlags().BoolVar(&jsonOutput, "json", false, "output in JSON format")
+}
+
+func Execute() error {
+	return rootCmd.Execute()
+}
+
+func printJSON(v any) error {
+	enc := json.NewEncoder(rootCmd.OutOrStdout())
+	enc.SetIndent("", "  ")
+	return enc.Encode(v)
+}
+
+func printText(format string, args ...any) {
+	fmt.Fprintf(rootCmd.OutOrStdout(), format, args...)
+}
+
+func printResult(text string, jsonObj any) {
+	if jsonOutput {
+		_ = printJSON(jsonObj)
+		return
+	}
+	printText("%s\n", text)
+}

internal/cli/root_test.go

@@ -0,0 +1,67 @@
+package cli
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestVersionCommandExists(t *testing.T) {
+	found := false
+	for _, cmd := range rootCmd.Commands() {
+		if cmd.Name() == "version" {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatal("version command not registered")
+	}
+}
+
+func TestRootHasAllSubcommands(t *testing.T) {
+	expected := []string{"version", "init", "status", "node", "job"}
+	registered := make(map[string]bool)
+	for _, cmd := range rootCmd.Commands() {
+		registered[cmd.Name()] = true
+	}
+	for _, name := range expected {
+		if !registered[name] {
+			t.Errorf("expected subcommand %q not registered", name)
+		}
+	}
+}
+
+func TestNodeSubcommands(t *testing.T) {
+	expected := []string{"join", "leave", "list"}
+	registered := make(map[string]bool)
+	for _, cmd := range nodeCmd.Commands() {
+		registered[cmd.Name()] = true
+	}
+	for _, name := range expected {
+		if !registered[name] {
+			t.Errorf("expected node subcommand %q not registered", name)
+		}
+	}
+}
+
+func TestJobSubcommands(t *testing.T) {
+	expected := []string{"run", "list", "stop", "logs"}
+	registered := make(map[string]bool)
+	for _, cmd := range jobCmd.Commands() {
+		registered[cmd.Name()] = true
+	}
+	for _, name := range expected {
+		if !registered[name] {
+			t.Errorf("expected job subcommand %q not registered", name)
+		}
+	}
+}
+
+func TestRootHelpMentionsKeyPillars(t *testing.T) {
+	help := rootCmd.Long
+	for _, pillar := range []string{"offline", "CLI", "Nomad", "simplicity"} {
+		if !strings.Contains(strings.ToLower(help), strings.ToLower(pillar)) {
+			t.Errorf("root help does not mention pillar %q", pillar)
+		}
+	}
+}

internal/cli/status.go

@@ -0,0 +1,36 @@
+package cli
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var statusCmd = &cobra.Command{
+	Use:   "status",
+	Short: "Show orca daemon status",
+	Long:  "Display the current status of the local orca daemon, including version, uptime, and connection info.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		status := map[string]any{
+			"version":   version,
+			"daemon":    "stopped",
+			"uptime":    "0s",
+			"api_addr":  "https://localhost:8443",
+			"health":    "unknown",
+			"phase":     "1-cli-skeleton",
+			"milestone": "v0.1",
+		}
+		if jsonOutput {
+			return printJSON(status)
+		}
+		printText("orca daemon status\n")
+		printText("  version:   %s\n", version)
+		printText("  daemon:    %s\n", "stopped (daemon not yet implemented in Phase 1)")
+		printText("  api_addr:  %s\n", "https://localhost:8443")
+		printText("  phase:     %s\n", "1-cli-skeleton")
+		printText("  milestone: %s\n", "v0.1")
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(statusCmd)
+}

internal/cli/version.go

@@ -0,0 +1,29 @@
+package cli
+
+import (
+	"github.com/spf13/cobra"
+)
+
+var versionCmd = &cobra.Command{
+	Use:   "version",
+	Short: "Print version information",
+	Long:  "Print the orca version, git commit, and build time.",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		info := map[string]string{
+			"version":    version,
+			"git_commit": gitCommit,
+			"build_time": buildTime,
+		}
+		if jsonOutput {
+			return printJSON(info)
+		}
+		printText("orca version %s\n", version)
+		printText("  git commit: %s\n", gitCommit)
+		printText("  build time: %s\n", buildTime)
+		return nil
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(versionCmd)
+}

internal/daemon/health.go

@@ -0,0 +1,129 @@
+package daemon
+
+import (
+	"context"
+	"encoding/json"
+	"log/slog"
+	"net/http"
+	"time"
+)
+
+// handleHealthz reports liveness. It does NOT check dependencies — by design,
+// a process that can answer this is "alive" even if its DB is wedged. Use
+// /readyz for dependency health.
+func (s *Server) handleHealthz(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"status": "alive",
+		"time":   time.Now().UTC().Format(time.RFC3339),
+	})
+}
+
+// handleReadyz reports readiness. Returns 503 if either:
+//   - MarkReady has not been called, OR
+//   - the SQLite database cannot be pinged within 2s.
+//
+// Distinguishing these cases in the response body helps operators triage.
+func (s *Server) handleReadyz(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	ctx, cancel := context.WithTimeout(r.Context(), 2*time.Second)
+	defer cancel()
+
+	if !s.ready.Load() {
+		writeJSON(w, http.StatusServiceUnavailable, map[string]any{
+			"status": "not_ready",
+			"reason": "daemon not marked ready",
+		})
+		return
+	}
+	if err := s.db.PingContext(ctx); err != nil {
+		s.log.Warn("readyz db ping failed",
+			slog.String("component", "daemon"),
+			slog.String("error", err.Error()))
+		writeJSON(w, http.StatusServiceUnavailable, map[string]any{
+			"status": "not_ready",
+			"reason": "db ping failed",
+		})
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"status": "ready",
+		"db":     "ok",
+	})
+}
+
+// handleStatus returns a small diagnostic JSON blob. Cheap to call; does
+// NOT touch the database unless we want a DB status check, in which case
+// the ping is bounded by 2s.
+func (s *Server) handleStatus(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	ctx, cancel := context.WithTimeout(r.Context(), 2*time.Second)
+	defer cancel()
+
+	dbStatus := "ok"
+	if err := s.db.PingContext(ctx); err != nil {
+		dbStatus = "error"
+		s.log.Warn("status db ping failed",
+			slog.String("component", "daemon"),
+			slog.String("error", err.Error()))
+	}
+	writeJSON(w, http.StatusOK, map[string]any{
+		"version":   Version,
+		"phase":     "5-health-checks",
+		"milestone": "v0.1",
+		"db":        dbStatus,
+		"ready":     s.ready.Load(),
+		"time":      time.Now().UTC().Format(time.RFC3339),
+	})
+}
+
+// writeJSON encodes body as JSON with the given status code.
+// Errors during encoding are logged but not surfaced — we cannot write
+// another header after the response has started.
+func writeJSON(w http.ResponseWriter, code int, body any) {
+	w.Header().Set("Content-Type", "application/json; charset=utf-8")
+	w.WriteHeader(code)
+	_ = json.NewEncoder(w).Encode(body)
+}
+
+// writeError emits a uniform error envelope: {"error": "<message>"}.
+func writeError(w http.ResponseWriter, code int, msg string) {
+	writeJSON(w, code, map[string]string{"error": msg})
+}
+
+// loggingMiddleware wraps the mux with a structured access log. It does
+// NOT log request/response bodies (could contain secrets); just method,
+// path, status, and duration.
+func loggingMiddleware(log *slog.Logger, next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		start := time.Now()
+		ww := &statusRecorder{ResponseWriter: w, status: 200}
+		next.ServeHTTP(ww, r)
+		log.Info("http",
+			slog.String("method", r.Method),
+			slog.String("path", r.URL.Path),
+			slog.Int("status", ww.status),
+			slog.Duration("dur", time.Since(start)),
+			slog.String("remote", r.RemoteAddr),
+		)
+	})
+}
+
+type statusRecorder struct {
+	http.ResponseWriter
+	status int
+}
+
+func (s *statusRecorder) WriteHeader(code int) {
+	s.status = code
+	s.ResponseWriter.WriteHeader(code)
+}

internal/daemon/health_test.go

@@ -0,0 +1,183 @@
+package daemon
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"testing"
+
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+func newTestServer(t *testing.T) *Server {
+	t.Helper()
+	db, err := store.Open(filepath.Join(t.TempDir(), "test.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	t.Cleanup(func() { _ = db.Close() })
+
+	s := NewServer(Options{DB: db, Log: nil, Addr: "127.0.0.1:0"})
+	s.MarkReady()
+	return s
+}
+
+func TestHealthzReturns200(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/healthz", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+	var body map[string]any
+	_ = json.NewDecoder(rr.Body).Decode(&body)
+	if body["status"] != "alive" {
+		t.Errorf("expected status alive, got %v", body["status"])
+	}
+}
+
+func TestReadyzReturns200WhenReady(t *testing.T) {
+	s := newTestServer(t)
+	s.MarkReady()
+	req := httptest.NewRequest("GET", "/readyz", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+}
+
+func TestReadyzReturns503WhenNotReady(t *testing.T) {
+	s := newTestServer(t)
+	s.MarkNotReady()
+	req := httptest.NewRequest("GET", "/readyz", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 503 {
+		t.Errorf("expected 503, got %d", rr.Code)
+	}
+}
+
+func TestStatusReturns200(t *testing.T) {
+	s := newTestServer(t)
+	s.MarkReady()
+	req := httptest.NewRequest("GET", "/v1/status", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+	var body map[string]any
+	_ = json.NewDecoder(rr.Body).Decode(&body)
+	if body["db"] != "ok" {
+		t.Errorf("expected db ok, got %v", body["db"])
+	}
+	if body["milestone"] != "v0.1" {
+		t.Errorf("expected milestone v0.1, got %v", body["milestone"])
+	}
+}
+
+func TestJobsCollectionEmpty(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/jobs", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+	var body map[string]any
+	_ = json.NewDecoder(rr.Body).Decode(&body)
+	if body["count"].(float64) != 0 {
+		t.Errorf("expected count 0, got %v", body["count"])
+	}
+}
+
+func TestJobsCollectionMethodNotAllowed(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("PUT", "/v1/jobs", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != http.StatusMethodNotAllowed {
+		t.Errorf("expected 405, got %d", rr.Code)
+	}
+}
+
+func TestJobsItemNotFound(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/jobs/nonexistent", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != http.StatusNotFound {
+		t.Errorf("expected 404, got %d", rr.Code)
+	}
+}
+
+func TestJobsItemInvalidID(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/jobs/has%20space", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != http.StatusBadRequest {
+		t.Errorf("expected 400, got %d", rr.Code)
+	}
+}
+
+func TestNodesCollectionEmpty(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/nodes", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+	var body map[string]any
+	_ = json.NewDecoder(rr.Body).Decode(&body)
+	if body["count"].(float64) != 0 {
+		t.Errorf("expected count 0, got %v", body["count"])
+	}
+}
+
+func TestTasksCollectionEmpty(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/tasks", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != 200 {
+		t.Errorf("expected 200, got %d", rr.Code)
+	}
+}
+
+func TestTasksCollectionInvalidLimit(t *testing.T) {
+	s := newTestServer(t)
+	req := httptest.NewRequest("GET", "/v1/tasks?limit=abc", nil)
+	rr := httptest.NewRecorder()
+	s.mux().ServeHTTP(rr, req)
+	if rr.Code != http.StatusBadRequest {
+		t.Errorf("expected 400, got %d", rr.Code)
+	}
+}
+
+func TestValidateID(t *testing.T) {
+	cases := []struct {
+		id    string
+		valid bool
+	}{
+		{"abc-123", true},
+		{"550e8400-e29b-41d4-a716-446655440000", true},
+		{"a", true},
+		{"", false},
+		{"has space", false},
+		{"with/slash", false},
+		{"../etc/passwd", false},
+		{string([]byte{0x00, 'a'}), false},
+	}
+	for _, c := range cases {
+		err := validateID(c.id)
+		if (err == nil) != c.valid {
+			t.Errorf("validateID(%q): valid=%v, err=%v", c.id, c.valid, err)
+		}
+	}
+}

internal/daemon/jobs_handler.go

@@ -0,0 +1,109 @@
+package daemon
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"net/http"
+	"strings"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+// handleJobsCollection handles /v1/jobs.
+//   - GET  → list all jobs
+//   - POST → not yet supported (job submission is CLI-only in v0.1)
+func (s *Server) handleJobsCollection(w http.ResponseWriter, r *http.Request) {
+	ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
+	defer cancel()
+
+	switch r.Method {
+	case http.MethodGet:
+		jobs, err := store.NewJobRepo(s.db).List(ctx)
+		if err != nil {
+			s.log.Error("list jobs",
+				slog.String("component", "daemon"),
+				slog.String("error", err.Error()))
+			writeError(w, http.StatusInternalServerError, "failed to list jobs")
+			return
+		}
+		if jobs == nil {
+			jobs = []*model.Job{}
+		}
+		writeJSON(w, http.StatusOK, map[string]any{"jobs": jobs, "count": len(jobs)})
+
+	case http.MethodPost:
+		// Job submission via HTTP is intentionally not exposed in v0.1.
+		// The CLI submits jobs to the local store directly; the daemon
+		// exists for observability and lifecycle control.
+		writeError(w, http.StatusNotImplemented, "job submission via API is not supported in v0.1; use 'orca job run'")
+
+	default:
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+	}
+}
+
+// handleJobsItem handles /v1/jobs/{id} and /v1/jobs/{id}/tasks.
+//   - GET  /v1/jobs/{id}        → job details
+//   - GET  /v1/jobs/{id}/tasks  → tasks for a job
+func (s *Server) handleJobsItem(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
+	defer cancel()
+
+	// Path is /v1/jobs/{id} or /v1/jobs/{id}/tasks
+	path := strings.TrimPrefix(r.URL.Path, "/v1/jobs/")
+	parts := strings.Split(path, "/")
+	if len(parts) == 0 || parts[0] == "" {
+		writeError(w, http.StatusBadRequest, "job id required")
+		return
+	}
+	id := parts[0]
+	if err := validateID(id); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	// /v1/jobs/{id}/tasks
+	if len(parts) == 2 && parts[1] == "tasks" {
+		tasks, err := store.NewTaskRepo(s.db).ListByJob(ctx, id)
+		if err != nil {
+			s.log.Error("list tasks for job",
+				slog.String("component", "daemon"),
+				slog.String("job_id", id),
+				slog.String("error", err.Error()))
+			writeError(w, http.StatusInternalServerError, "failed to list tasks")
+			return
+		}
+		if tasks == nil {
+			tasks = []*model.Task{}
+		}
+		writeJSON(w, http.StatusOK, map[string]any{"tasks": tasks, "count": len(tasks), "job_id": id})
+		return
+	}
+
+	// /v1/jobs/{id} (with no further path)
+	if len(parts) != 1 {
+		writeError(w, http.StatusNotFound, "not found")
+		return
+	}
+	job, err := store.NewJobRepo(s.db).Get(ctx, id)
+	if err != nil {
+		if errors.Is(err, store.ErrNotFound) {
+			writeError(w, http.StatusNotFound, "job not found")
+			return
+		}
+		s.log.Error("get job",
+			slog.String("component", "daemon"),
+			slog.String("job_id", id),
+			slog.String("error", err.Error()))
+		writeError(w, http.StatusInternalServerError, "failed to get job")
+		return
+	}
+	writeJSON(w, http.StatusOK, job)
+}

internal/daemon/nodes_handler.go

@@ -0,0 +1,31 @@
+package daemon
+
+import (
+	"context"
+	"net/http"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+// handleNodesCollection handles /v1/nodes (GET only in v0.1).
+// Node registration is CLI-only; the API is read-only for observability.
+func (s *Server) handleNodesCollection(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
+	defer cancel()
+
+	nodes, err := store.NewNodeRepo(s.db).List(ctx)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, "failed to list nodes")
+		return
+	}
+	if nodes == nil {
+		nodes = []*model.Node{}
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"nodes": nodes, "count": len(nodes)})
+}

internal/daemon/server.go

@@ -0,0 +1,120 @@
+// Package daemon implements the orca HTTP daemon.
+//
+// The daemon exposes health endpoints (/healthz, /readyz), a status endpoint
+// (/v1/status), and a v1 resource API for jobs, nodes, and tasks. All handlers
+// follow the project conventions:
+//
+//   - context.Context propagated to all I/O
+//   - errors wrapped with %w
+//   - structured JSON via writeJSON
+//   - no secrets in logs
+//   - input validation on path/query/body
+package daemon
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"log/slog"
+	"net/http"
+	"sync/atomic"
+	"time"
+)
+
+// Server is the orca HTTP daemon. It holds shared dependencies and lifecycle
+// state. Construct it with NewServer, then call Start/Shutdown.
+type Server struct {
+	db    *sql.DB
+	log   *slog.Logger
+	addr  string
+	ready atomic.Bool
+
+	httpServer *http.Server
+}
+
+// Options configures a new Server.
+type Options struct {
+	DB    *sql.DB
+	Log   *slog.Logger
+	Addr  string
+	Actor string // used for audit logging from API requests
+}
+
+// NewServer constructs a Server with the default mux and route table.
+func NewServer(opts Options) *Server {
+	if opts.Log == nil {
+		opts.Log = slog.Default()
+	}
+	if opts.Addr == "" {
+		opts.Addr = ":8080"
+	}
+	if opts.Actor == "" {
+		opts.Actor = "api"
+	}
+	s := &Server{
+		db:   opts.DB,
+		log:  opts.Log,
+		addr: opts.Addr,
+	}
+	s.httpServer = &http.Server{
+		Addr:              opts.Addr,
+		Handler:           s.mux(),
+		ReadHeaderTimeout: 5 * time.Second,
+		ReadTimeout:       15 * time.Second,
+		WriteTimeout:      30 * time.Second,
+		IdleTimeout:       60 * time.Second,
+	}
+	return s
+}
+
+// Addr returns the configured listen address.
+func (s *Server) Addr() string { return s.addr }
+
+// MarkReady flips the readiness flag to true. The /readyz endpoint returns
+// 200 only when this flag is set AND the database is reachable.
+func (s *Server) MarkReady() { s.ready.Store(true) }
+
+// MarkNotReady flips the readiness flag to false. Called at shutdown start
+// so load balancers stop routing traffic.
+func (s *Server) MarkNotReady() { s.ready.Store(false) }
+
+// Ready reports the current readiness flag.
+func (s *Server) Ready() bool { return s.ready.Load() }
+
+// mux builds the route table. Handlers are split across files:
+//   - health.go          /healthz, /readyz, /v1/status
+//   - jobs_handler.go    /v1/jobs/*
+//   - nodes_handler.go   /v1/nodes/*
+//   - tasks_handler.go   /v1/tasks/*
+func (s *Server) mux() http.Handler {
+	mux := http.NewServeMux()
+	mux.HandleFunc("/healthz", s.handleHealthz)
+	mux.HandleFunc("/readyz", s.handleReadyz)
+	mux.HandleFunc("/v1/status", s.handleStatus)
+	mux.HandleFunc("/v1/jobs", s.handleJobsCollection)
+	mux.HandleFunc("/v1/jobs/", s.handleJobsItem)
+	mux.HandleFunc("/v1/nodes", s.handleNodesCollection)
+	mux.HandleFunc("/v1/tasks", s.handleTasksCollection)
+	return loggingMiddleware(s.log, mux)
+}
+
+// Start runs the HTTP server. Returns http.ErrServerClosed on clean shutdown.
+func (s *Server) Start() error {
+	s.log.Info("daemon starting",
+		slog.String("addr", s.addr),
+		slog.String("component", "daemon"))
+	return s.httpServer.ListenAndServe()
+}
+
+// Shutdown gracefully stops the server, bounded by ctx. It also flips the
+// readiness flag to false so /readyz returns 503 immediately.
+func (s *Server) Shutdown(ctx context.Context) error {
+	s.MarkNotReady()
+	s.log.Info("daemon shutting down", slog.String("component", "daemon"))
+	return s.httpServer.Shutdown(ctx)
+}
+
+// IsShutdownErr reports whether err is the expected error from a stopped server.
+func IsShutdownErr(err error) bool {
+	return errors.Is(err, http.ErrServerClosed)
+}

internal/daemon/server_test.go

@@ -0,0 +1,150 @@
+package daemon
+
+import (
+	"context"
+	"errors"
+	"io"
+	"net"
+	"net/http"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+func TestServerLifecycle(t *testing.T) {
+	db, err := store.Open(filepath.Join(t.TempDir(), "lifecycle.db"))
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	defer db.Close()
+
+	s := NewServer(Options{DB: db, Addr: "127.0.0.1:0"})
+	s.MarkReady()
+
+	if !s.Ready() {
+		t.Error("expected server ready after MarkReady")
+	}
+	s.MarkNotReady()
+	if s.Ready() {
+		t.Error("expected server not ready after MarkNotReady")
+	}
+	s.MarkReady()
+
+	// Bind an ephemeral listener and serve on it directly.
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	addr := ln.Addr().String()
+
+	errCh := make(chan error, 1)
+	go func() {
+		err := s.httpServer.Serve(ln)
+		if err != nil && !errors.Is(err, http.ErrServerClosed) {
+			errCh <- err
+		}
+		close(errCh)
+	}()
+
+	// Verify healthz responds.
+	deadline := time.Now().Add(2 * time.Second)
+	for time.Now().Before(deadline) {
+		c := http.Client{Timeout: 200 * time.Millisecond}
+		r, err := c.Get("http://" + addr + "/healthz")
+		if err == nil {
+			_ = r.Body.Close()
+			if r.StatusCode == 200 {
+				break
+			}
+		}
+		time.Sleep(20 * time.Millisecond)
+	}
+
+	resp, err := http.Get("http://" + addr + "/healthz")
+	if err != nil {
+		t.Fatalf("GET /healthz: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		t.Errorf("expected 200, got %d", resp.StatusCode)
+	}
+	body, _ := io.ReadAll(resp.Body)
+	_ = resp.Body.Close()
+	if !strings.Contains(string(body), `"alive"`) {
+		t.Errorf("expected alive status in body, got %s", string(body))
+	}
+
+	// readyz returns 200 when ready.
+	resp, err = http.Get("http://" + addr + "/readyz")
+	if err != nil {
+		t.Fatalf("GET /readyz: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		t.Errorf("expected 200, got %d", resp.StatusCode)
+	}
+	_ = resp.Body.Close()
+
+	// /v1/jobs returns JSON
+	resp, err = http.Get("http://" + addr + "/v1/jobs")
+	if err != nil {
+		t.Fatalf("GET /v1/jobs: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		t.Errorf("expected 200, got %d", resp.StatusCode)
+	}
+	if ct := resp.Header.Get("Content-Type"); !strings.HasPrefix(ct, "application/json") {
+		t.Errorf("expected JSON content-type, got %s", ct)
+	}
+	_ = resp.Body.Close()
+
+	// /v1/nodes returns JSON
+	resp, err = http.Get("http://" + addr + "/v1/nodes")
+	if err != nil {
+		t.Fatalf("GET /v1/nodes: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		t.Errorf("expected 200, got %d", resp.StatusCode)
+	}
+	_ = resp.Body.Close()
+
+	// /v1/tasks returns JSON
+	resp, err = http.Get("http://" + addr + "/v1/tasks")
+	if err != nil {
+		t.Fatalf("GET /v1/tasks: %v", err)
+	}
+	if resp.StatusCode != 200 {
+		t.Errorf("expected 200, got %d", resp.StatusCode)
+	}
+	_ = resp.Body.Close()
+
+	// Shutdown cleanly.
+	ctx, cancel := context.WithTimeout(context.Background(), 2*time.Second)
+	defer cancel()
+	if err := s.Shutdown(ctx); err != nil {
+		t.Errorf("shutdown: %v", err)
+	}
+	if s.Ready() {
+		t.Error("expected not-ready after shutdown")
+	}
+
+	// Server should report ErrServerClosed or nil.
+	select {
+	case err := <-errCh:
+		if err != nil && !errors.Is(err, http.ErrServerClosed) {
+			t.Errorf("expected nil or ErrServerClosed, got %v", err)
+		}
+	case <-time.After(2 * time.Second):
+		t.Error("server did not exit after Shutdown")
+	}
+}
+
+func TestIsShutdownErr(t *testing.T) {
+	if !IsShutdownErr(http.ErrServerClosed) {
+		t.Error("expected IsShutdownErr(http.ErrServerClosed) to be true")
+	}
+	if IsShutdownErr(errors.New("other")) {
+		t.Error("expected false for other errors")
+	}
+}

internal/daemon/tasks_handler.go

@@ -0,0 +1,66 @@
+package daemon
+
+import (
+	"context"
+	"log/slog"
+	"net/http"
+	"strconv"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+// handleTasksCollection handles /v1/tasks (GET only).
+// Optional query param: ?job_id=<id> to filter by job.
+// Optional: ?limit=<n> (default 100, max 1000).
+func (s *Server) handleTasksCollection(w http.ResponseWriter, r *http.Request) {
+	if r.Method != http.MethodGet {
+		writeError(w, http.StatusMethodNotAllowed, "method not allowed")
+		return
+	}
+	ctx, cancel := context.WithTimeout(r.Context(), 5*time.Second)
+	defer cancel()
+
+	jobID := r.URL.Query().Get("job_id")
+	if jobID != "" {
+		if err := validateID(jobID); err != nil {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+	}
+
+	limit := 100
+	if v := r.URL.Query().Get("limit"); v != "" {
+		n, err := strconv.Atoi(v)
+		if err != nil || n <= 0 {
+			writeError(w, http.StatusBadRequest, "invalid limit")
+			return
+		}
+		if n > 1000 {
+			n = 1000
+		}
+		limit = n
+	}
+
+	repo := store.NewTaskRepo(s.db)
+	var tasks []*model.Task
+	var err error
+	if jobID != "" {
+		tasks, err = repo.ListByJob(ctx, jobID)
+	} else {
+		tasks, err = repo.ListRecent(ctx, limit)
+	}
+	if err != nil {
+		s.log.Error("list tasks",
+			slog.String("component", "daemon"),
+			slog.String("job_id", jobID),
+			slog.String("error", err.Error()))
+		writeError(w, http.StatusInternalServerError, "failed to list tasks")
+		return
+	}
+	if tasks == nil {
+		tasks = []*model.Task{}
+	}
+	writeJSON(w, http.StatusOK, map[string]any{"tasks": tasks, "count": len(tasks)})
+}

internal/daemon/validate.go

@@ -0,0 +1,28 @@
+package daemon
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+)
+
+// idPattern constrains path IDs to a safe subset: alphanumerics, hyphens,
+// and underscores. UUIDs and our internal IDs both fit. We reject anything
+// that smells like a path-traversal, control character, or shell metachar.
+var idPattern = regexp.MustCompile(`^[A-Za-z0-9_-]{1,128}$`)
+
+// validateID checks that an ID is well-formed and within length limits.
+// It exists primarily as a defense-in-depth measure against path traversal
+// and accidental log-injection when the ID is echoed back in error messages.
+func validateID(id string) error {
+	if id == "" {
+		return fmt.Errorf("id required")
+	}
+	if strings.ContainsAny(id, "\r\n\t\x00") {
+		return fmt.Errorf("invalid id")
+	}
+	if !idPattern.MatchString(id) {
+		return fmt.Errorf("invalid id format")
+	}
+	return nil
+}

internal/daemon/version.go

@@ -0,0 +1,5 @@
+package daemon
+
+// Version is the daemon version. It is set at build time via -ldflags by the
+// release pipeline, but defaults to a dev marker for local development.
+var Version = "0.1.0-dev"

internal/engine/audit.go

@@ -0,0 +1,52 @@
+package engine
+
+import (
+	"context"
+	"log/slog"
+
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+// Audit wraps a slog.Logger and persists structured audit entries to SQLite.
+type Audit struct {
+	repo *store.AuditRepo
+	log  *slog.Logger
+}
+
+func NewAudit(repo *store.AuditRepo, log *slog.Logger) *Audit {
+	if log == nil {
+		log = slog.Default()
+	}
+	return &Audit{repo: repo, log: log}
+}
+
+func (a *Audit) Record(ctx context.Context, actor, action, resource, result string, err error, meta map[string]any) {
+	entry := &store.AuditEntry{
+		Actor:    actor,
+		Action:   action,
+		Resource: resource,
+		Result:   result,
+		Metadata: meta,
+	}
+	if err != nil {
+		entry.Error = err.Error()
+	}
+	if persistErr := a.repo.Append(ctx, entry); persistErr != nil {
+		a.log.Error("audit persist failed",
+			slog.String("action", action),
+			slog.String("resource", resource),
+			slog.String("error", persistErr.Error()))
+	}
+	attrs := []any{
+		slog.String("actor", actor),
+		slog.String("action", action),
+		slog.String("resource", resource),
+		slog.String("result", result),
+	}
+	if err != nil {
+		attrs = append(attrs, slog.String("error", err.Error()))
+		a.log.Warn("audit", attrs...)
+	} else {
+		a.log.Info("audit", attrs...)
+	}
+}

internal/engine/executor.go

@@ -0,0 +1,150 @@
+package engine
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"log/slog"
+	"os/exec"
+	"sync"
+	"time"
+
+	"github.com/google/uuid"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+type Executor struct {
+	jobs  *store.JobRepo
+	tasks *store.TaskRepo
+	log   *slog.Logger
+	mu    sync.Mutex
+}
+
+func NewExecutor(jobs *store.JobRepo, tasks *store.TaskRepo, log *slog.Logger) *Executor {
+	if log == nil {
+		log = slog.Default()
+	}
+	return &Executor{jobs: jobs, tasks: tasks, log: log}
+}
+
+type TaskSpec struct {
+	Name    string
+	Command string
+	Args    []string
+	Env     []string
+}
+
+func (e *Executor) Run(ctx context.Context, job *model.Job, specs []TaskSpec) error {
+	e.mu.Lock()
+	defer e.mu.Unlock()
+
+	// Insert the job first so tasks can reference it via foreign key.
+	if err := e.jobs.Insert(ctx, job); err != nil {
+		return err
+	}
+	if err := e.jobs.UpdateStatus(ctx, job.ID, model.JobStatusRunning, 0); err != nil {
+		return err
+	}
+
+	var (
+		wg          sync.WaitGroup
+		failedCount int
+		exitCode    int
+		mu          sync.Mutex
+	)
+
+	for _, ts := range specs {
+		wg.Add(1)
+		go func(ts TaskSpec) {
+			defer wg.Done()
+			if err := e.runOne(ctx, job, ts); err != nil {
+				mu.Lock()
+				failedCount++
+				e.log.Error("task failed",
+					slog.String("job_id", job.ID),
+					slog.String("task", ts.Name),
+					slog.String("error", err.Error()))
+				mu.Unlock()
+			}
+		}(ts)
+	}
+	wg.Wait()
+
+	if failedCount > 0 {
+		exitCode = 1
+		if err := e.jobs.UpdateStatus(ctx, job.ID, model.JobStatusFailed, exitCode); err != nil {
+			return err
+		}
+		return fmt.Errorf("%d/%d tasks failed", failedCount, len(specs))
+	}
+
+	if err := e.jobs.UpdateStatus(ctx, job.ID, model.JobStatusComplete, 0); err != nil {
+		return err
+	}
+	return nil
+}
+
+func (e *Executor) runOne(ctx context.Context, job *model.Job, ts TaskSpec) error {
+	task := &model.Task{
+		ID:      uuid.NewString(),
+		JobID:   job.ID,
+		Command: ts.Command,
+		Args:    ts.Args,
+		Env:     ts.Env,
+		Status:  model.TaskStatusPending,
+	}
+	if err := e.tasks.Insert(ctx, task); err != nil {
+		return err
+	}
+
+	cmd := exec.CommandContext(ctx, ts.Command, ts.Args...)
+	cmd.Env = append(cmd.Environ(), ts.Env...)
+	// WaitDelay (Go 1.25+) bounds the time spent waiting on a child process
+	// that fails to exit after the context is canceled.
+	cmd.WaitDelay = 5 * time.Second
+
+	var stdout, stderr bytes.Buffer
+	cmd.Stdout = &stdout
+	cmd.Stderr = &stderr
+
+	if err := cmd.Start(); err != nil {
+		_ = e.tasks.UpdateKilled(ctx, task.ID)
+		return fmt.Errorf("start: %w", err)
+	}
+
+	if err := e.tasks.UpdateRunning(ctx, task.ID, cmd.Process.Pid); err != nil {
+		e.log.Warn("update running failed", slog.String("error", err.Error()))
+	}
+
+	e.log.Info("task started",
+		slog.String("job_id", job.ID),
+		slog.String("task", ts.Name),
+		slog.Int("pid", cmd.Process.Pid))
+
+	done := make(chan error, 1)
+	go func() { done <- cmd.Wait() }()
+
+	select {
+	case err := <-done:
+		exitCode := 0
+		if err != nil {
+			if ee, ok := err.(*exec.ExitError); ok {
+				exitCode = ee.ExitCode()
+			} else {
+				exitCode = 1
+			}
+		}
+		_ = e.tasks.UpdateDone(ctx, task.ID, exitCode, stdout.String(), stderr.String())
+		if err != nil {
+			return err
+		}
+		return nil
+	case <-ctx.Done():
+		// WaitDelay (set above) gives the process a grace period to exit
+		// cleanly before being killed.
+		_ = e.tasks.UpdateKilled(ctx, task.ID)
+		return ctx.Err()
+	}
+}

internal/engine/registry.go

@@ -0,0 +1,70 @@
+package engine
+
+import (
+	"context"
+	"fmt"
+	"log/slog"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+	"git.cloudinit.dev/coreci/orca/internal/store"
+)
+
+type NodeRegistry struct {
+	repo  *store.NodeRepo
+	audit *Audit
+	log   *slog.Logger
+}
+
+func NewNodeRegistry(repo *store.NodeRepo, audit *Audit, log *slog.Logger) *NodeRegistry {
+	if log == nil {
+		log = slog.Default()
+	}
+	return &NodeRegistry{repo: repo, audit: audit, log: log}
+}
+
+func (r *NodeRegistry) Join(ctx context.Context, n *model.Node) error {
+	if err := r.repo.Insert(ctx, n); err != nil {
+		r.audit.Record(ctx, "cli", "node.join", n.ID, "failure", err, map[string]any{
+			"name":    n.Name,
+			"address": n.Address,
+		})
+		return fmt.Errorf("join node: %w", err)
+	}
+	r.audit.Record(ctx, "cli", "node.join", n.ID, "success", nil, map[string]any{
+		"name":    n.Name,
+		"address": n.Address,
+	})
+	r.log.Info("node joined",
+		slog.String("node_id", n.ID),
+		slog.String("name", n.Name),
+		slog.String("address", n.Address))
+	return nil
+}
+
+func (r *NodeRegistry) Leave(ctx context.Context, id string) error {
+	if err := r.repo.UpdateState(ctx, id, model.NodeStateLeft); err != nil {
+		r.audit.Record(ctx, "cli", "node.leave", id, "failure", err, nil)
+		return fmt.Errorf("leave node: %w", err)
+	}
+	r.audit.Record(ctx, "cli", "node.leave", id, "success", nil, nil)
+	r.log.Info("node left", slog.String("node_id", id))
+	return nil
+}
+
+func (r *NodeRegistry) Forget(ctx context.Context, id string) error {
+	if err := r.repo.Delete(ctx, id); err != nil {
+		r.audit.Record(ctx, "cli", "node.forget", id, "failure", err, nil)
+		return fmt.Errorf("forget node: %w", err)
+	}
+	r.audit.Record(ctx, "cli", "node.forget", id, "success", nil, nil)
+	r.log.Info("node removed from registry", slog.String("node_id", id))
+	return nil
+}
+
+func (r *NodeRegistry) List(ctx context.Context) ([]*model.Node, error) {
+	return r.repo.List(ctx)
+}
+
+func (r *NodeRegistry) Get(ctx context.Context, id string) (*model.Node, error) {
+	return r.repo.Get(ctx, id)
+}

internal/jobspec/spec.go

@@ -0,0 +1,69 @@
+package jobspec
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"github.com/hashicorp/hcl/v2"
+	"github.com/hashicorp/hcl/v2/gohcl"
+	"github.com/hashicorp/hcl/v2/hclsimple"
+)
+
+type Spec struct {
+	Job   JobSpec    `hcl:"job,block"`
+	Tasks []TaskSpec `hcl:"task,block"`
+}
+
+type JobSpec struct {
+	Name string `hcl:"name,label"`
+	Type string `hcl:"type,optional"`
+}
+
+type TaskSpec struct {
+	Name    string   `hcl:"name,label"`
+	Command string   `hcl:"command"`
+	Args    []string `hcl:"args,optional"`
+	Env     []string `hcl:"env,optional"`
+}
+
+func ParseFile(path string) (*Spec, error) {
+	data, err := os.ReadFile(path)
+	if err != nil {
+		return nil, fmt.Errorf("read spec file: %w", err)
+	}
+	return Parse(data, path)
+}
+
+func Parse(data []byte, filename string) (*Spec, error) {
+	var spec Spec
+	err := hclsimple.Decode(filename, data, nil, &spec)
+	if err != nil {
+		return nil, fmt.Errorf("decode hcl: %w", err)
+	}
+	if spec.Job.Name == "" {
+		return nil, fmt.Errorf("spec missing job name")
+	}
+	if len(spec.Tasks) == 0 {
+		return nil, fmt.Errorf("spec must have at least one task")
+	}
+	for i, t := range spec.Tasks {
+		if t.Command == "" {
+			return nil, fmt.Errorf("task[%d] (%s) missing command", i, t.Name)
+		}
+	}
+	return &spec, nil
+}
+
+func (s *Spec) Validate() error {
+	if strings.TrimSpace(s.Job.Name) == "" {
+		return fmt.Errorf("job name is required")
+	}
+	if len(s.Tasks) == 0 {
+		return fmt.Errorf("at least one task is required")
+	}
+	return nil
+}
+
+var _ = hcl.Diagnostics{}
+var _ = gohcl.DecodeBody

internal/jobspec/spec_test.go

@@ -0,0 +1,60 @@
+package jobspec
+
+import (
+	"testing"
+)
+
+func TestParseValid(t *testing.T) {
+	hcl := `
+job "demo" {
+}
+
+task "build" {
+  command = "/bin/echo"
+  args    = ["hello", "world"]
+}
+`
+	spec, err := Parse([]byte(hcl), "test.hcl")
+	if err != nil {
+		t.Fatalf("parse: %v", err)
+	}
+	if spec.Job.Name != "demo" {
+		t.Errorf("expected job name 'demo', got %q", spec.Job.Name)
+	}
+	if len(spec.Tasks) != 1 {
+		t.Fatalf("expected 1 task, got %d", len(spec.Tasks))
+	}
+	if spec.Tasks[0].Command != "/bin/echo" {
+		t.Errorf("expected command '/bin/echo', got %q", spec.Tasks[0].Command)
+	}
+	if len(spec.Tasks[0].Args) != 2 {
+		t.Errorf("expected 2 args, got %d", len(spec.Tasks[0].Args))
+	}
+}
+
+func TestParseMissingJob(t *testing.T) {
+	hcl := `task "x" { command = "/bin/echo" }`
+	_, err := Parse([]byte(hcl), "test.hcl")
+	if err == nil {
+		t.Fatal("expected error for missing job name")
+	}
+}
+
+func TestParseNoTasks(t *testing.T) {
+	hcl := `job "empty" {}`
+	_, err := Parse([]byte(hcl), "test.hcl")
+	if err == nil {
+		t.Fatal("expected error for no tasks")
+	}
+}
+
+func TestParseTaskMissingCommand(t *testing.T) {
+	hcl := `
+job "x" {}
+task "no-cmd" {}
+`
+	_, err := Parse([]byte(hcl), "test.hcl")
+	if err == nil {
+		t.Fatal("expected error for missing command")
+	}
+}

internal/model/job.go

@@ -0,0 +1,50 @@
+package model
+
+import "time"
+
+type JobStatus string
+
+const (
+	JobStatusPending  JobStatus = "pending"
+	JobStatusRunning  JobStatus = "running"
+	JobStatusComplete JobStatus = "complete"
+	JobStatusFailed   JobStatus = "failed"
+	JobStatusStopped  JobStatus = "stopped"
+)
+
+type Job struct {
+	ID        string     `json:"id"`
+	Name      string     `json:"name"`
+	Spec      string     `json:"spec"`
+	Status    JobStatus  `json:"status"`
+	CreatedAt time.Time  `json:"created_at"`
+	StartedAt *time.Time `json:"started_at,omitempty"`
+	EndedAt   *time.Time `json:"ended_at,omitempty"`
+	ExitCode  int        `json:"exit_code"`
+}
+
+type TaskStatus string
+
+const (
+	TaskStatusPending  TaskStatus = "pending"
+	TaskStatusRunning  TaskStatus = "running"
+	TaskStatusComplete TaskStatus = "complete"
+	TaskStatusFailed   TaskStatus = "failed"
+	TaskStatusKilled   TaskStatus = "killed"
+)
+
+type Task struct {
+	ID        string     `json:"id"`
+	JobID     string     `json:"job_id"`
+	Command   string     `json:"command"`
+	Args      []string   `json:"args"`
+	Env       []string   `json:"env,omitempty"`
+	PID       int        `json:"pid"`
+	ExitCode  int        `json:"exit_code"`
+	Status    TaskStatus `json:"status"`
+	CreatedAt time.Time  `json:"created_at"`
+	StartedAt *time.Time `json:"started_at,omitempty"`
+	EndedAt   *time.Time `json:"ended_at,omitempty"`
+	Stdout    string     `json:"stdout,omitempty"`
+	Stderr    string     `json:"stderr,omitempty"`
+}

internal/model/node.go

@@ -0,0 +1,21 @@
+package model
+
+import "time"
+
+type NodeState string
+
+const (
+	NodeStatePending NodeState = "pending"
+	NodeStateReady   NodeState = "ready"
+	NodeStateLeft    NodeState = "left"
+)
+
+type Node struct {
+	ID       string            `json:"id"`
+	Name     string            `json:"name"`
+	Address  string            `json:"address"`
+	State    NodeState         `json:"state"`
+	JoinedAt time.Time         `json:"joined_at"`
+	LastSeen time.Time         `json:"last_seen"`
+	Metadata map[string]string `json:"metadata,omitempty"`
+}

internal/store/audit_repo.go

@@ -0,0 +1,81 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"time"
+)
+
+type AuditEntry struct {
+	ID        int64          `json:"id"`
+	Timestamp time.Time      `json:"timestamp"`
+	Actor     string         `json:"actor"`
+	Action    string         `json:"action"`
+	Resource  string         `json:"resource"`
+	Result    string         `json:"result"`
+	Error     string         `json:"error,omitempty"`
+	Metadata  map[string]any `json:"metadata,omitempty"`
+}
+
+type AuditRepo struct {
+	db *sql.DB
+}
+
+func NewAuditRepo(db *sql.DB) *AuditRepo {
+	return &AuditRepo{db: db}
+}
+
+func (r *AuditRepo) Append(ctx context.Context, e *AuditEntry) error {
+	if e.Timestamp.IsZero() {
+		e.Timestamp = time.Now().UTC()
+	}
+	if e.Actor == "" {
+		e.Actor = "system"
+	}
+	metaJSON, _ := json.Marshal(e.Metadata)
+	if e.Error == "" {
+		_, err := r.db.ExecContext(ctx,
+			`INSERT INTO audit_log (timestamp, actor, action, resource, result, metadata) VALUES (?, ?, ?, ?, ?, ?)`,
+			e.Timestamp, e.Actor, e.Action, e.Resource, e.Result, string(metaJSON))
+		if err != nil {
+			return fmt.Errorf("insert audit: %w", err)
+		}
+		return nil
+	}
+	_, err := r.db.ExecContext(ctx,
+		`INSERT INTO audit_log (timestamp, actor, action, resource, result, error, metadata) VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		e.Timestamp, e.Actor, e.Action, e.Resource, e.Result, e.Error, string(metaJSON))
+	if err != nil {
+		return fmt.Errorf("insert audit (with error): %w", err)
+	}
+	return nil
+}
+
+func (r *AuditRepo) List(ctx context.Context, limit int) ([]*AuditEntry, error) {
+	if limit <= 0 {
+		limit = 100
+	}
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, timestamp, actor, action, resource, result, COALESCE(error, ''), COALESCE(metadata, '') FROM audit_log ORDER BY id DESC LIMIT ?`, limit)
+	if err != nil {
+		return nil, fmt.Errorf("list audit: %w", err)
+	}
+	defer rows.Close()
+	var entries []*AuditEntry
+	for rows.Next() {
+		var (
+			e        AuditEntry
+			metaJSON string
+		)
+		if err := rows.Scan(&e.ID, &e.Timestamp, &e.Actor, &e.Action, &e.Resource, &e.Result, &e.Error, &metaJSON); err != nil {
+			return nil, fmt.Errorf("scan audit: %w", err)
+		}
+		if metaJSON != "" {
+			_ = json.Unmarshal([]byte(metaJSON), &e.Metadata)
+		}
+		entries = append(entries, &e)
+	}
+	return entries, rows.Err()
+}

internal/store/audit_repo_test.go

@@ -0,0 +1,67 @@
+package store
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+)
+
+func openAuditTestDB(t *testing.T) (*AuditRepo, func()) {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "audit.db")
+	db, err := Open(path)
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	return NewAuditRepo(db), func() { _ = db.Close() }
+}
+
+func TestAuditRepo_AppendAndList(t *testing.T) {
+	repo, cleanup := openAuditTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	for i := 0; i < 5; i++ {
+		err := repo.Append(ctx, &AuditEntry{
+			Actor:    "cli",
+			Action:   "node.join",
+			Resource: "node-1",
+			Result:   "success",
+		})
+		if err != nil {
+			t.Fatalf("append[%d]: %v", i, err)
+		}
+	}
+	entries, err := repo.List(ctx, 10)
+	if err != nil {
+		t.Fatalf("list: %v", err)
+	}
+	if len(entries) != 5 {
+		t.Errorf("expected 5 entries, got %d", len(entries))
+	}
+}
+
+func TestAuditRepo_WithError(t *testing.T) {
+	repo, cleanup := openAuditTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	err := repo.Append(ctx, &AuditEntry{
+		Actor:    "system",
+		Action:   "task.run",
+		Resource: "task-1",
+		Result:   "failure",
+		Error:    "exit status 1",
+		Metadata: map[string]any{"exit_code": 1},
+	})
+	if err != nil {
+		t.Fatalf("append: %v", err)
+	}
+	entries, _ := repo.List(ctx, 1)
+	if len(entries) != 1 {
+		t.Fatalf("expected 1 entry, got %d", len(entries))
+	}
+	if entries[0].Error != "exit status 1" {
+		t.Errorf("expected error 'exit status 1', got %q", entries[0].Error)
+	}
+}

internal/store/job_task_repo.go

@@ -0,0 +1,246 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+)
+
+type JobRepo struct {
+	db *sql.DB
+}
+
+func NewJobRepo(db *sql.DB) *JobRepo {
+	return &JobRepo{db: db}
+}
+
+func (r *JobRepo) Insert(ctx context.Context, j *model.Job) error {
+	if j.CreatedAt.IsZero() {
+		j.CreatedAt = time.Now().UTC()
+	}
+	if j.Status == "" {
+		j.Status = model.JobStatusPending
+	}
+	_, err := r.db.ExecContext(ctx,
+		`INSERT INTO jobs (id, name, spec, status, exit_code, created_at) VALUES (?, ?, ?, ?, ?, ?)`,
+		j.ID, j.Name, j.Spec, string(j.Status), j.ExitCode, j.CreatedAt)
+	if err != nil {
+		return fmt.Errorf("insert job: %w", err)
+	}
+	return nil
+}
+
+func (r *JobRepo) Get(ctx context.Context, id string) (*model.Job, error) {
+	row := r.db.QueryRowContext(ctx,
+		`SELECT id, name, spec, status, exit_code, created_at, started_at, ended_at FROM jobs WHERE id = ?`, id)
+	return scanJob(row)
+}
+
+func (r *JobRepo) List(ctx context.Context) ([]*model.Job, error) {
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, name, spec, status, exit_code, created_at, started_at, ended_at FROM jobs ORDER BY created_at DESC`)
+	if err != nil {
+		return nil, fmt.Errorf("list jobs: %w", err)
+	}
+	defer rows.Close()
+	var jobs []*model.Job
+	for rows.Next() {
+		j, err := scanJob(rows)
+		if err != nil {
+			return nil, err
+		}
+		jobs = append(jobs, j)
+	}
+	return jobs, rows.Err()
+}
+
+func (r *JobRepo) UpdateStatus(ctx context.Context, id string, status model.JobStatus, exitCode int) error {
+	now := time.Now().UTC()
+	var startedAt, endedAt *time.Time
+	switch status {
+	case model.JobStatusRunning:
+		startedAt = &now
+	case model.JobStatusComplete, model.JobStatusFailed, model.JobStatusStopped:
+		endedAt = &now
+	}
+	_, err := r.db.ExecContext(ctx,
+		`UPDATE jobs SET status = ?, exit_code = ?, started_at = COALESCE(?, started_at), ended_at = COALESCE(?, ended_at) WHERE id = ?`,
+		string(status), exitCode, startedAt, endedAt, id)
+	if err != nil {
+		return fmt.Errorf("update job: %w", err)
+	}
+	return nil
+}
+
+func scanJob(s scanner) (*model.Job, error) {
+	var (
+		j         model.Job
+		status    string
+		startedAt sql.NullTime
+		endedAt   sql.NullTime
+	)
+	err := s.Scan(&j.ID, &j.Name, &j.Spec, &status, &j.ExitCode, &j.CreatedAt, &startedAt, &endedAt)
+	if err == sql.ErrNoRows {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("scan job: %w", err)
+	}
+	j.Status = model.JobStatus(status)
+	if startedAt.Valid {
+		j.StartedAt = &startedAt.Time
+	}
+	if endedAt.Valid {
+		j.EndedAt = &endedAt.Time
+	}
+	return &j, nil
+}
+
+type TaskRepo struct {
+	db *sql.DB
+}
+
+func NewTaskRepo(db *sql.DB) *TaskRepo {
+	return &TaskRepo{db: db}
+}
+
+func (r *TaskRepo) Insert(ctx context.Context, t *model.Task) error {
+	if t.CreatedAt.IsZero() {
+		t.CreatedAt = time.Now().UTC()
+	}
+	if t.Status == "" {
+		t.Status = model.TaskStatusPending
+	}
+	argsJSON, _ := json.Marshal(t.Args)
+	envJSON, _ := json.Marshal(t.Env)
+	_, err := r.db.ExecContext(ctx,
+		`INSERT INTO tasks (id, job_id, command, args, env, pid, exit_code, status, created_at, stdout, stderr)
+		 VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)`,
+		t.ID, t.JobID, t.Command, string(argsJSON), string(envJSON),
+		t.PID, t.ExitCode, string(t.Status), t.CreatedAt, t.Stdout, t.Stderr)
+	if err != nil {
+		return fmt.Errorf("insert task: %w", err)
+	}
+	return nil
+}
+
+func (r *TaskRepo) Get(ctx context.Context, id string) (*model.Task, error) {
+	row := r.db.QueryRowContext(ctx,
+		`SELECT id, job_id, command, args, env, pid, exit_code, status, created_at, started_at, ended_at, stdout, stderr FROM tasks WHERE id = ?`, id)
+	return scanTask(row)
+}
+
+func (r *TaskRepo) ListByJob(ctx context.Context, jobID string) ([]*model.Task, error) {
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, job_id, command, args, env, pid, exit_code, status, created_at, started_at, ended_at, stdout, stderr FROM tasks WHERE job_id = ? ORDER BY created_at ASC`, jobID)
+	if err != nil {
+		return nil, fmt.Errorf("list tasks: %w", err)
+	}
+	defer rows.Close()
+	var tasks []*model.Task
+	for rows.Next() {
+		t, err := scanTask(rows)
+		if err != nil {
+			return nil, err
+		}
+		tasks = append(tasks, t)
+	}
+	return tasks, rows.Err()
+}
+
+func (r *TaskRepo) UpdateRunning(ctx context.Context, id string, pid int) error {
+	now := time.Now().UTC()
+	_, err := r.db.ExecContext(ctx,
+		`UPDATE tasks SET pid = ?, status = ?, started_at = ? WHERE id = ?`,
+		pid, string(model.TaskStatusRunning), now, id)
+	if err != nil {
+		return fmt.Errorf("update task running: %w", err)
+	}
+	return nil
+}
+
+func (r *TaskRepo) UpdateDone(ctx context.Context, id string, exitCode int, stdout, stderr string) error {
+	now := time.Now().UTC()
+	status := model.TaskStatusComplete
+	if exitCode != 0 {
+		status = model.TaskStatusFailed
+	}
+	_, err := r.db.ExecContext(ctx,
+		`UPDATE tasks SET status = ?, exit_code = ?, ended_at = ?, stdout = ?, stderr = ? WHERE id = ?`,
+		string(status), exitCode, now, stdout, stderr, id)
+	if err != nil {
+		return fmt.Errorf("update task done: %w", err)
+	}
+	return nil
+}
+
+func (r *TaskRepo) UpdateKilled(ctx context.Context, id string) error {
+	now := time.Now().UTC()
+	_, err := r.db.ExecContext(ctx,
+		`UPDATE tasks SET status = ?, ended_at = ? WHERE id = ?`,
+		string(model.TaskStatusKilled), now, id)
+	if err != nil {
+		return fmt.Errorf("update task killed: %w", err)
+	}
+	return nil
+}
+
+// ListRecent returns up to limit tasks ordered by created_at DESC.
+// Used by the API to expose recent activity without a job filter.
+func (r *TaskRepo) ListRecent(ctx context.Context, limit int) ([]*model.Task, error) {
+	if limit <= 0 {
+		limit = 100
+	}
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, job_id, command, args, env, pid, exit_code, status, created_at, started_at, ended_at, stdout, stderr FROM tasks ORDER BY created_at DESC LIMIT ?`, limit)
+	if err != nil {
+		return nil, fmt.Errorf("list tasks recent: %w", err)
+	}
+	defer rows.Close()
+	var tasks []*model.Task
+	for rows.Next() {
+		t, err := scanTask(rows)
+		if err != nil {
+			return nil, err
+		}
+		tasks = append(tasks, t)
+	}
+	return tasks, rows.Err()
+}
+
+var _ = errors.New
+var _ = json.Marshal
+
+func scanTask(s scanner) (*model.Task, error) {
+	var (
+		t         model.Task
+		status    string
+		argsJSON  string
+		envJSON   string
+		startedAt sql.NullTime
+		endedAt   sql.NullTime
+	)
+	err := s.Scan(&t.ID, &t.JobID, &t.Command, &argsJSON, &envJSON,
+		&t.PID, &t.ExitCode, &status, &t.CreatedAt, &startedAt, &endedAt, &t.Stdout, &t.Stderr)
+	if err == sql.ErrNoRows {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("scan task: %w", err)
+	}
+	t.Status = model.TaskStatus(status)
+	if startedAt.Valid {
+		t.StartedAt = &startedAt.Time
+	}
+	if endedAt.Valid {
+		t.EndedAt = &endedAt.Time
+	}
+	_ = json.Unmarshal([]byte(argsJSON), &t.Args)
+	_ = json.Unmarshal([]byte(envJSON), &t.Env)
+	return &t, nil
+}

internal/store/migrate.go

@@ -0,0 +1,53 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"embed"
+	"fmt"
+	"sort"
+	"strings"
+)
+
+//go:embed migrations/*.sql
+var migrationsFS embed.FS
+
+func migrate(db *sql.DB) error {
+	entries, err := migrationsFS.ReadDir("migrations")
+	if err != nil {
+		return fmt.Errorf("read migrations dir: %w", err)
+	}
+	names := make([]string, 0, len(entries))
+	for _, e := range entries {
+		if !e.IsDir() && strings.HasSuffix(e.Name(), ".sql") {
+			names = append(names, e.Name())
+		}
+	}
+	sort.Strings(names)
+
+	if _, err := db.ExecContext(context.Background(), `CREATE TABLE IF NOT EXISTS schema_migrations (name TEXT PRIMARY KEY, applied_at DATETIME NOT NULL)`); err != nil {
+		return fmt.Errorf("create schema_migrations: %w", err)
+	}
+
+	for _, name := range names {
+		var existing string
+		err := db.QueryRowContext(context.Background(), `SELECT name FROM schema_migrations WHERE name = ?`, name).Scan(&existing)
+		if err == nil {
+			continue
+		}
+		if err != sql.ErrNoRows {
+			return fmt.Errorf("check migration %s: %w", name, err)
+		}
+		sqlBytes, err := migrationsFS.ReadFile("migrations/" + name)
+		if err != nil {
+			return fmt.Errorf("read migration %s: %w", name, err)
+		}
+		if _, err := db.ExecContext(context.Background(), string(sqlBytes)); err != nil {
+			return fmt.Errorf("apply migration %s: %w", name, err)
+		}
+		if _, err := db.ExecContext(context.Background(), `INSERT INTO schema_migrations (name, applied_at) VALUES (?, datetime('now'))`, name); err != nil {
+			return fmt.Errorf("record migration %s: %w", name, err)
+		}
+	}
+	return nil
+}

internal/store/migrations/0001_nodes.sql

@@ -0,0 +1,13 @@
+-- Node registry
+CREATE TABLE IF NOT EXISTS nodes (
+    id         TEXT PRIMARY KEY,
+    name       TEXT NOT NULL,
+    address    TEXT NOT NULL,
+    state      TEXT NOT NULL DEFAULT 'pending',
+    joined_at  DATETIME NOT NULL,
+    last_seen  DATETIME NOT NULL,
+    metadata   TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_nodes_state ON nodes(state);
+CREATE INDEX IF NOT EXISTS idx_nodes_name ON nodes(name);

internal/store/migrations/0002_jobs_tasks.sql

@@ -0,0 +1,34 @@
+-- Jobs and tasks
+CREATE TABLE IF NOT EXISTS jobs (
+    id         TEXT PRIMARY KEY,
+    name       TEXT NOT NULL,
+    spec       TEXT NOT NULL,
+    status     TEXT NOT NULL DEFAULT 'pending',
+    exit_code  INTEGER NOT NULL DEFAULT 0,
+    created_at DATETIME NOT NULL,
+    started_at DATETIME,
+    ended_at   DATETIME
+);
+
+CREATE INDEX IF NOT EXISTS idx_jobs_status ON jobs(status);
+CREATE INDEX IF NOT EXISTS idx_jobs_created ON jobs(created_at);
+
+CREATE TABLE IF NOT EXISTS tasks (
+    id         TEXT PRIMARY KEY,
+    job_id     TEXT NOT NULL,
+    command    TEXT NOT NULL,
+    args       TEXT NOT NULL DEFAULT '[]',
+    env        TEXT NOT NULL DEFAULT '[]',
+    pid        INTEGER NOT NULL DEFAULT 0,
+    exit_code  INTEGER NOT NULL DEFAULT 0,
+    status     TEXT NOT NULL DEFAULT 'pending',
+    created_at DATETIME NOT NULL,
+    started_at DATETIME,
+    ended_at   DATETIME,
+    stdout     TEXT NOT NULL DEFAULT '',
+    stderr     TEXT NOT NULL DEFAULT '',
+    FOREIGN KEY (job_id) REFERENCES jobs(id) ON DELETE CASCADE
+);
+
+CREATE INDEX IF NOT EXISTS idx_tasks_job ON tasks(job_id);
+CREATE INDEX IF NOT EXISTS idx_tasks_status ON tasks(status);

internal/store/migrations/0003_audit_log.sql

@@ -0,0 +1,15 @@
+-- Audit log for security-first observability
+CREATE TABLE IF NOT EXISTS audit_log (
+    id         INTEGER PRIMARY KEY AUTOINCREMENT,
+    timestamp  DATETIME NOT NULL,
+    actor      TEXT NOT NULL DEFAULT 'system',
+    action     TEXT NOT NULL,
+    resource   TEXT NOT NULL,
+    result     TEXT NOT NULL,
+    error      TEXT,
+    metadata   TEXT
+);
+
+CREATE INDEX IF NOT EXISTS idx_audit_timestamp ON audit_log(timestamp);
+CREATE INDEX IF NOT EXISTS idx_audit_action ON audit_log(action);
+CREATE INDEX IF NOT EXISTS idx_audit_resource ON audit_log(resource);

internal/store/node_repo.go

@@ -0,0 +1,122 @@
+package store
+
+import (
+	"context"
+	"database/sql"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+)
+
+var ErrNotFound = errors.New("not found")
+
+type NodeRepo struct {
+	db *sql.DB
+}
+
+func NewNodeRepo(db *sql.DB) *NodeRepo {
+	return &NodeRepo{db: db}
+}
+
+func (r *NodeRepo) Insert(ctx context.Context, n *model.Node) error {
+	if n.JoinedAt.IsZero() {
+		n.JoinedAt = time.Now().UTC()
+	}
+	if n.LastSeen.IsZero() {
+		n.LastSeen = n.JoinedAt
+	}
+	if n.State == "" {
+		n.State = model.NodeStateReady
+	}
+	metaJSON, err := json.Marshal(n.Metadata)
+	if err != nil {
+		return fmt.Errorf("marshal metadata: %w", err)
+	}
+	_, err = r.db.ExecContext(ctx,
+		`INSERT INTO nodes (id, name, address, state, joined_at, last_seen, metadata) VALUES (?, ?, ?, ?, ?, ?, ?)`,
+		n.ID, n.Name, n.Address, string(n.State), n.JoinedAt, n.LastSeen, string(metaJSON))
+	if err != nil {
+		return fmt.Errorf("insert node: %w", err)
+	}
+	return nil
+}
+
+func (r *NodeRepo) Get(ctx context.Context, id string) (*model.Node, error) {
+	row := r.db.QueryRowContext(ctx,
+		`SELECT id, name, address, state, joined_at, last_seen, metadata FROM nodes WHERE id = ?`, id)
+	return scanNode(row)
+}
+
+func (r *NodeRepo) List(ctx context.Context) ([]*model.Node, error) {
+	rows, err := r.db.QueryContext(ctx,
+		`SELECT id, name, address, state, joined_at, last_seen, metadata FROM nodes ORDER BY joined_at ASC`)
+	if err != nil {
+		return nil, fmt.Errorf("list nodes: %w", err)
+	}
+	defer rows.Close()
+
+	var nodes []*model.Node
+	for rows.Next() {
+		n, err := scanNode(rows)
+		if err != nil {
+			return nil, err
+		}
+		nodes = append(nodes, n)
+	}
+	return nodes, rows.Err()
+}
+
+func (r *NodeRepo) UpdateState(ctx context.Context, id string, state model.NodeState) error {
+	res, err := r.db.ExecContext(ctx,
+		`UPDATE nodes SET state = ?, last_seen = ? WHERE id = ?`,
+		string(state), time.Now().UTC(), id)
+	if err != nil {
+		return fmt.Errorf("update node state: %w", err)
+	}
+	rows, _ := res.RowsAffected()
+	if rows == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+func (r *NodeRepo) Delete(ctx context.Context, id string) error {
+	res, err := r.db.ExecContext(ctx, `DELETE FROM nodes WHERE id = ?`, id)
+	if err != nil {
+		return fmt.Errorf("delete node: %w", err)
+	}
+	rows, _ := res.RowsAffected()
+	if rows == 0 {
+		return ErrNotFound
+	}
+	return nil
+}
+
+type scanner interface {
+	Scan(dest ...any) error
+}
+
+func scanNode(s scanner) (*model.Node, error) {
+	var (
+		n        model.Node
+		state    string
+		metaJSON sql.NullString
+	)
+	err := s.Scan(&n.ID, &n.Name, &n.Address, &state, &n.JoinedAt, &n.LastSeen, &metaJSON)
+	if err == sql.ErrNoRows {
+		return nil, ErrNotFound
+	}
+	if err != nil {
+		return nil, fmt.Errorf("scan node: %w", err)
+	}
+	n.State = model.NodeState(state)
+	if metaJSON.Valid && metaJSON.String != "" {
+		if err := json.Unmarshal([]byte(metaJSON.String), &n.Metadata); err != nil {
+			return nil, fmt.Errorf("unmarshal metadata: %w", err)
+		}
+	}
+	return &n, nil
+}

internal/store/node_repo_test.go

@@ -0,0 +1,102 @@
+package store
+
+import (
+	"context"
+	"path/filepath"
+	"testing"
+	"time"
+
+	"git.cloudinit.dev/coreci/orca/internal/model"
+)
+
+func openTestDB(t *testing.T) (*NodeRepo, func()) {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "test.db")
+	db, err := Open(path)
+	if err != nil {
+		t.Fatalf("open db: %v", err)
+	}
+	return NewNodeRepo(db), func() { _ = db.Close() }
+}
+
+func TestNodeRepo_InsertAndGet(t *testing.T) {
+	repo, cleanup := openTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	n := &model.Node{
+		ID:       "test-id-1",
+		Name:     "alpha",
+		Address:  "localhost:8443",
+		State:    model.NodeStateReady,
+		JoinedAt: time.Now().UTC(),
+		LastSeen: time.Now().UTC(),
+	}
+	if err := repo.Insert(ctx, n); err != nil {
+		t.Fatalf("insert: %v", err)
+	}
+	got, err := repo.Get(ctx, "test-id-1")
+	if err != nil {
+		t.Fatalf("get: %v", err)
+	}
+	if got.Name != "alpha" || got.Address != "localhost:8443" {
+		t.Errorf("unexpected node: %+v", got)
+	}
+	if got.State != model.NodeStateReady {
+		t.Errorf("expected state ready, got %s", got.State)
+	}
+}
+
+func TestNodeRepo_List(t *testing.T) {
+	repo, cleanup := openTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	for _, name := range []string{"a", "b", "c"} {
+		_ = repo.Insert(ctx, &model.Node{
+			ID: name, Name: name, Address: "addr",
+			JoinedAt: time.Now().UTC(), LastSeen: time.Now().UTC(),
+		})
+	}
+	nodes, err := repo.List(ctx)
+	if err != nil {
+		t.Fatalf("list: %v", err)
+	}
+	if len(nodes) != 3 {
+		t.Errorf("expected 3 nodes, got %d", len(nodes))
+	}
+}
+
+func TestNodeRepo_UpdateState(t *testing.T) {
+	repo, cleanup := openTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	_ = repo.Insert(ctx, &model.Node{
+		ID: "x", Name: "x", Address: "a", JoinedAt: time.Now().UTC(), LastSeen: time.Now().UTC(),
+	})
+	if err := repo.UpdateState(ctx, "x", model.NodeStateLeft); err != nil {
+		t.Fatalf("update: %v", err)
+	}
+	got, _ := repo.Get(ctx, "x")
+	if got.State != model.NodeStateLeft {
+		t.Errorf("expected left, got %s", got.State)
+	}
+}
+
+func TestNodeRepo_Delete(t *testing.T) {
+	repo, cleanup := openTestDB(t)
+	defer cleanup()
+
+	ctx := context.Background()
+	_ = repo.Insert(ctx, &model.Node{
+		ID: "y", Name: "y", Address: "a", JoinedAt: time.Now().UTC(), LastSeen: time.Now().UTC(),
+	})
+	if err := repo.Delete(ctx, "y"); err != nil {
+		t.Fatalf("delete: %v", err)
+	}
+	_, err := repo.Get(ctx, "y")
+	if err != ErrNotFound {
+		t.Errorf("expected ErrNotFound, got %v", err)
+	}
+}

internal/store/store.go

@@ -0,0 +1,36 @@
+package store
+
+import (
+	"database/sql"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	_ "modernc.org/sqlite"
+)
+
+func Open(path string) (*sql.DB, error) {
+	if path == "" {
+		home, err := os.UserHomeDir()
+		if err != nil {
+			return nil, fmt.Errorf("get home dir: %w", err)
+		}
+		path = filepath.Join(home, ".orca", "orca.db")
+	}
+	if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
+		return nil, fmt.Errorf("create db dir: %w", err)
+	}
+	db, err := sql.Open("sqlite", path+"?_pragma=journal_mode(WAL)&_pragma=foreign_keys(ON)")
+	if err != nil {
+		return nil, fmt.Errorf("open sqlite: %w", err)
+	}
+	if err := db.Ping(); err != nil {
+		_ = db.Close()
+		return nil, fmt.Errorf("ping sqlite: %w", err)
+	}
+	if err := migrate(db); err != nil {
+		_ = db.Close()
+		return nil, fmt.Errorf("migrate: %w", err)
+	}
+	return db, nil
+}