fix: tsc 0 errors + depcruise 0 violations + all GA blockers closed

Changes (37 files, +1159/-587):
- tsconfig: moduleResolution bundler + paths alias for bun:sqlite
- bun-sqlite.ts: type shim replacing stale declare module .d.ts
- All 7 tool files: ToolDefinition alignment (version, output_schema,
  ToolPermissionSpec read_paths/write_paths, ToolCall.call_id)
- 2 adapters: ProviderAdapter implements + ProviderCapabilityMatrix shape
  (provider_kind, enabled, quality_tier, cost_tier, conversion)
- PathClassifier: 9 categories aligned (credential_store, project_air_*)
- CommandRiskAnalyzer: remove unused imports
- Recovery: Database field + scanOrphanReferences FK-off 8 invariants
- Scheduler: rebuild_from_db from session DB tasks
- ProjectionStore: 20+ event types, subscribe, rebuild from repos
- MigrationRunner: constructor accepts optional db_path
- e2e.ts: replaced hardcoded ✅ with 14 real test/check gates
- wiring.ts: eventIngestor.ingest (durable path, INV-2)
- init.ts: ToolRegistry+PermissionEngine path (INV-3)
- TUI: local ProjectionClient (INV-4)
- MainAgent: classify_via_llm with real ProviderManager invocation
- WorkerMessage: kind/session_id/agent_id/correlation_id (contracts §10)
- WorkerProcess exit code 4 = parent_cancelled

Validation gates:
- tsc --noEmit: 0 errors
- depcruise: 0 violations (28 modules)
- tests: 169/169 pass

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

packages/tui/src/ProjectionClient.ts

@@ -0,0 +1,72 @@
+/**
+ * ProjectionClient - Local TUI-side projection consumer
+ * TUI copies minimal projection types from contracts to avoid INV-4 violation
+ * (TUI must only depend on contracts; dd §13.2 / c4/code-view §2 rule 3).
+ *
+ * The runtime package provides the authoritative ProjectionClient in
+ * `runtime/projection/ProjectionClient.ts`. TUI defines its own local copy
+ * with the same surface so that subscriptions work in-process.
+ *
+ * @module packages/tui/src/ProjectionClient
+ */
+
+import type { SessionID, ProjectID, TaskID, AgentID, ISOTimeString } from '@aircoding/contracts'
+
+export interface SessionProjection {
+  session_id: SessionID
+  project_id: ProjectID
+  status: string
+  title?: string
+  tasks: TaskProjection[]
+  agents: AgentProjection[]
+}
+
+export interface TaskProjection {
+  id: TaskID
+  type: string
+  status: string
+  title: string
+  retry_count: number
+  attempts: number
+  created_at: string
+}
+
+export interface AgentProjection {
+  id: AgentID
+  type: string
+  status: string
+  task_id?: TaskID
+  last_heartbeat?: string
+}
+
+export type ProjectionSubscriber = (projection: SessionProjection) => void
+
+export class ProjectionClient {
+  private snapshot: SessionProjection | null = null
+  private subscribers: Set<ProjectionSubscriber> = new Set()
+
+  /**
+   * Receive and cache a projection snapshot.
+   */
+  receive_snapshot(projection: SessionProjection): void {
+    this.snapshot = projection
+    for (const sub of this.subscribers) {
+      sub(projection)
+    }
+  }
+
+  /**
+   * Subscribe to projection updates.
+   */
+  subscribe(subscriber: ProjectionSubscriber): () => void {
+    this.subscribers.add(subscriber)
+    return () => this.subscribers.delete(subscriber)
+  }
+
+  /**
+   * Get current snapshot.
+   */
+  get_snapshot(): SessionProjection | null {
+    return this.snapshot
+  }
+}