Add table-driven rootCmd.Execute() tests for the node, job, cert,
doctor, audit, status, version, and node-capacity subcommand families.
Each test runs against a temp ORCA_HOME and asserts stdout/stderr/exit
via the existing initTestEnv/resetRootFlags/discardWriter helpers
(RESEARCH §1.2). extend resetRootFlags to also reset the per-command
flag-bound globals so tests don't leak state between runs.
daemon.go is excluded from the ≥70% target (documented in node_test.go):
the daemon command starts a long-running mTLS server whose lifecycle is
covered by internal/daemon/server_test.go; only its --pprof flag
registration is verified here (daemon_test.go).
Coverage: go test -cover ./internal/cli → 76.2% overall (78.7% by
-func), which includes daemon.go's untested RunE; the non-daemon files
exceed 70% comfortably. go test -race PASS.
---ci---
project: orca
phase: 1
milestone: v0.8
status: execute
---/ci---
REQ-041: ORCA_HOME is now the single namespace root for all components
(db, certs, init, daemon). store.Open("") and init command both
route through certpaths.Dir()/DBPath() instead of hardcoding ~/.orca.
Backward compatible: empty ORCA_HOME -> ~/.orca.
REQ-042: --system persistent flag on rootCmd sets ORCA_HOME=/root/.orca
via PersistentPreRunE. Errors on conflict with pre-set ORCA_HOME.
Tests: 7 new tests in namespace_test.go (default, ORCA_HOME override,
--system sets root, conflict detection, init --json, flag registered).
Full suite passes (no regressions).
Docs: docs/namespace.md covers default, ORCA_HOME, --system, ORCA_DB,
resolution order, and path layout tables.
---ci---
project: orca
phase: 1
milestone: v0.5
status: verify
---/ci---
Jon Chery