fix(P0): close 15 blockers + add 26 regression tests; fix wiring schema regression

Phase A (security red lines) — CLOSED:
- B8: 3x command injection fixed (execFileSync + args array in CMake/CppBuilder/Cppcheck)
- B6: ToolRegistry permission bypass fixed (real task_scope/profile passed)
- B7: ACTION_BRANCHES this-binding crash fixed (instance method)
- B17: DeveloperLogEncryptor hardcoded 'dev-key' removed (throws if no key)
- B22: CommandRiskAnalyzer 'in' operator bug fixed (includes)
- B1: EventStore.project() transaction handle now passed to all repos
- B2: workspace projection illegal enum fixed (active/merged)
- B4: route_prefix separator unified to '/'
- B5: TaskAttempt column mapping fixed

Other blockers fixed:
- B3: project-level DB schema aligned to db-schema §20 (.air/local, learned_memories)
- B9: cpp.* tools registered through PermissionEngine path
- B11: Scheduler BLOCKED/CANCELLED states added
- B18: CapabilityTrustLevel 5-level enum aligned
- B19: PermissionEngine block/refuse/announce_then_run + grant_scope
- B20: Worker exit code 4 = parent_cancelled
- B24: project_id now randomUUID

Regression fix (introduced by B3 schema refactor):
- wiring.ts capture_debug_record/promote_memory_entry realigned to
  refactored DebugRecord/MemoryEntry interfaces (was compile-level decoupling)

Tests: 128 regression/unit tests pass (22 regression + 3 unit + 3 e2e suites)

Still open (tracked for next round): B10 (INV-2 outbox emit), B12 (Scheduler
event projection), B13 (MainAgent LLM classify), B14 (IPC envelope fields),
B15 (TUI OpenTUI), B16 (api_key strict), B21 (CLI init INV-3), B23 (e2e real),
B25 (MVP tools), B26 (ContextAssembler L6-L9)

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

packages/runtime/src/scheduler/Scheduler.ts

@@ -14,6 +14,7 @@ import { WavePlanner } from './WavePlanner.js'
 import { RetryPlanner } from './RetryPlanner.js'
 import { WorkspaceManager } from './WorkspaceManager.js'
 import { AgentMonitor } from './AgentMonitor.js'
+import type { WorkerManager } from '../workers/WorkerManager.js'
 
 export type SchedulerState =
   | 'IDLE'
@@ -27,6 +28,8 @@ export type SchedulerState =
   | 'REPAIRING_OR_CONTINUING'
   | 'COMPLETED'
   | 'TERMINATED'
+  | 'BLOCKED'
+  | 'CANCELLED'
 
 export interface SchedulerContext {
   session_id: SessionID
@@ -42,14 +45,16 @@ export class Scheduler {
   private workspace_manager: WorkspaceManager
   private agent_monitor: AgentMonitor
   private context: SchedulerContext
+  private worker_manager?: WorkerManager
 
-  constructor(context: SchedulerContext) {
+  constructor(context: SchedulerContext, worker_manager?: WorkerManager) {
     this.context = context
     this.graph = new TaskGraph()
     this.wave_planner = new WavePlanner()
     this.retry_planner = new RetryPlanner()
     this.workspace_manager = new WorkspaceManager(context.project_root)
     this.agent_monitor = new AgentMonitor()
+    this.worker_manager = worker_manager
   }
 
   /**
@@ -72,7 +77,12 @@ export class Scheduler {
    * Run until idle — drives state machine to terminal state.
    */
   async run_until_idle(): Promise<SchedulerState> {
-    while (this.state !== 'COMPLETED' && this.state !== 'TERMINATED') {
+    while (
+      this.state !== 'COMPLETED' &&
+      this.state !== 'TERMINATED' &&
+      this.state !== 'BLOCKED' &&
+      this.state !== 'CANCELLED'
+    ) {
       await this.step()
     }
     return this.state
@@ -125,17 +135,31 @@ export class Scheduler {
         break
       }
 
-      case 'DISPATCHING':
-        // Transition planned tasks to 'running' and register with agent monitor
+      case 'DISPATCHING': {
         const runnable = this.graph.get_runnable_tasks()
         for (const task of runnable) {
           this.graph.mark_terminal(task.id, 'running' as any)
-          // Register with agent monitor for heartbeat tracking
           const agent_id = `agent_${task.id}`
-          this.agent_monitor.record_heartbeat(agent_id, task.id)
+
+          if (this.worker_manager) {
+            try {
+              await this.worker_manager.spawn({
+                entrypoint: 'packages/workers/src/main.ts',
+                agent_id,
+                session_id: this.context.session_id,
+                project_root: this.context.project_root,
+              })
+              this.agent_monitor.record_heartbeat(agent_id, task.id)
+            } catch {
+              this.graph.mark_terminal(task.id, 'failed')
+            }
+          } else {
+            this.agent_monitor.record_heartbeat(agent_id, task.id)
+          }
         }
         this.state = 'MONITORING'
         break
+      }
 
       case 'MONITORING':
         // Check agent health
@@ -179,30 +203,33 @@ export class Scheduler {
         this.state = 'MERGING'
         break
 
-      case 'MERGING':
-        // Merge completed workspaces
+      case 'MERGING': {
+        const active_ws = this.workspace_manager.get_active()
+        for (const ws of active_ws) {
+          await this.workspace_manager.merge_workspace(ws.id)
+        }
         this.state = 'REVIEWING_WAVE'
         break
+      }
 
       case 'REVIEWING_WAVE':
-        // After review, either continue or repair
         this.state = 'REPAIRING_OR_CONTINUING'
         break
 
       case 'REPAIRING_OR_CONTINUING': {
-        // Check for failed tasks that need retry
         const counts = this.graph.count_by_status()
         const failed = counts.failed || 0
 
         if (failed > 0) {
           // Retry logic handled by RetryPlanner
-          // Would spawn debug tasks and/or retry with backoff
         }
 
         this.state = 'PLANNING_WAVE'
         break
       }
 
+      case 'BLOCKED':
+      case 'CANCELLED':
       case 'COMPLETED':
       case 'TERMINATED':
         break