refactor(rebrand): rename & rebrand CI → CIAgent across all source and test files

- Type renames: CIConfig → CIAgentConfig, DEFAULT_CI_CONFIG → DEFAULT_CIAGENT_CONFIG
- Type renames: CiMetadata → CIAgentMetadata, ParsedCiCommit → ParsedCIAgentCommit
- Function renames: initCI → initCIAgent, isCIInitialized → isCIAgentInitialized
- Function renames: extractCiBlock → extractCIAgentBlock, parseCiBlock → parseCIAgentBlock
- Class renames: CiFiles → CIAgentFiles
- Import paths: ci-files.js → ciagent-files.js
- Directory paths: .ci/ → .ciagent/ across all source and test files
- Check names: ".ci directory exists" → ".ciagent directory exists"
- Check names: "CI config valid" → "CIAgent config valid"
- Temp dir names: ci-*-test- → ciagent-*-test-
- CLI examples: "ci init" → "ciagent init"
- Fix deepMerge infinite recursion bug in config.ts
- ---ci---/---/ci--- block markers preserved unchanged
- All 31 test suites, 370 tests passing

---ci---
phase: 1
milestone: v0.5
plan: 07
task: 07-01-01
status: execute
---/ci---

src/index.ts

@@ -2,20 +2,20 @@ export { OrchestratorAgent } from "./agents/orchestrator.js";
 export { DecisionEngine } from "./core/decision-engine.js";
 export { EscalationProtocol } from "./core/escalation.js";
 export { ClarifyPhase } from "./core/clarify.js";
-export { CiFiles } from "./core/ci-files.js";
+export { CIAgentFiles } from "./core/ciagent-files.js";
 export { ErrorRecovery } from "./core/error-recovery.js";
 export { GitContext } from "./core/git-context.js";
 export { GitBranch } from "./core/git-branch.js";
 export { CommitBuilder } from "./core/commit-builder.js";
-export { extractCiBlock, parseCiBlock, parseCommitMessage } from "./core/commit-parser.js";
+export { extractCIAgentBlock, parseCIAgentBlock, parseCommitMessage } from "./core/commit-parser.js";
 export { VerificationPipeline } from "./verification/index.js";
 export { StructuralVerification } from "./verification/structural.js";
 export { BehavioralVerification } from "./verification/behavioral.js";
 export { SecurityVerification } from "./verification/security.js";
 export { QualityVerification } from "./verification/quality.js";
 export { getAgent, getAvailableAgents } from "./agents/index.js";
-export { initCI, loadConfig, saveConfig, isCIInitialized } from "./core/config.js";
-export { DEFAULT_CI_CONFIG } from "./types/config.js";
+export { initCIAgent, loadConfig, saveConfig, isCIAgentInitialized } from "./core/config.js";
+export { DEFAULT_CIAGENT_CONFIG } from "./types/config.js";
 export { confidenceToLevel, shouldEscalate } from "./types/decisions.js";
 export { ESCALATION_TYPES } from "./types/escalation.js";
 export { createClarifyQuestion } from "./types/clarify.js";
@@ -28,7 +28,7 @@ export { OllamaLocalBackend } from "./backends/ollama-local.js";
 export { OllamaCloudBackend } from "./backends/ollama-cloud.js";
 export { ToolRegistry } from "./backends/tool-registry.js";
 
-export type { CIConfig, AutonomyLevel, ModelProfile } from "./types/config.js";
+export type { CIAgentConfig, AutonomyLevel, ModelProfile } from "./types/config.js";
 export type { Decision, DecisionCategory } from "./types/decisions.js";
 export type { Escalation, EscalationType } from "./types/escalation.js";
 export type { PipelineState, PhaseResult, OrchestratorResult } from "./types/pipeline.js";
@@ -38,9 +38,9 @@ export type { AgentContext, AgentResult } from "./agents/base.js";
 export type { LayeredVerificationResult } from "./verification/index.js";
 export type { VerificationResult, VerificationCheck } from "./verification/types.js";
 export type { AgentName } from "./types/config.js";
-export type { CiMetadata, ParsedCiCommit, CommitType, CommitScope, CommitDecision, CommitEscalation, CommitRequirements, CommitCompoundMeta } from "./types/commit-meta.js";
+export type { CIAgentMetadata, ParsedCIAgentCommit, CommitType, CommitScope, CommitDecision, CommitEscalation, CommitRequirements, CommitCompoundMeta } from "./types/commit-meta.js";
 export type { ProjectState, BranchInfo } from "./core/git-context.js";
 export type { PhaseBranchInfo, MilestoneBranchInfo, BranchCreateResult, BranchMergeResult } from "./core/git-branch.js";
-export type { ProjectMd, RoadmapMd, RequirementsMd, ArchitectureMd } from "./core/ci-files.js";
+export type { ProjectMd, RoadmapMd, RequirementsMd, ArchitectureMd } from "./core/ciagent-files.js";
 export type { IntelligenceBackend, BackendRequest, BackendResult, BackendConfigSection, BackendUnavailableError, Artifact, TokenUsage } from "./backends/types.js";
 export type { ToolDefinition, ToolCall, ToolResult } from "./backends/tool-registry.js";