fix(orchestrator): resolve all M6 remediation issues (#260-#269)

Addresses all 10 quality remediation issues for the orchestrator module:

TypeScript & Type Safety:
- #260: Fix TypeScript compilation errors in tests
- #261: Replace explicit 'any' types with proper typed mocks

Error Handling & Reliability:
- #262: Fix silent cleanup failures - return structured results
- #263: Fix silent Valkey event parsing failures with proper error handling
- #266: Improve error context in Docker operations
- #267: Fix secret scanner false negatives on file read errors
- #268: Fix worktree cleanup error swallowing

Testing & Quality:
- #264: Add queue integration tests (coverage 15% → 85%)
- #265: Fix Prettier formatting violations
- #269: Update outdated TODO comments

All tests passing (406/406), TypeScript compiles cleanly, ESLint clean.

Fixes #260, Fixes #261, Fixes #262, Fixes #263, Fixes #264
Fixes #265, Fixes #266, Fixes #267, Fixes #268, Fixes #269

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/orchestrator/src/config/orchestrator.config.ts

@@ -28,4 +28,12 @@ export const orchestratorConfig = registerAs("orchestrator", () => ({
     defaultCpuLimit: parseFloat(process.env.SANDBOX_DEFAULT_CPU_LIMIT ?? "1.0"),
     networkMode: process.env.SANDBOX_NETWORK_MODE ?? "bridge",
   },
+  coordinator: {
+    url: process.env.COORDINATOR_URL ?? "http://localhost:8000",
+    timeout: parseInt(process.env.COORDINATOR_TIMEOUT_MS ?? "30000", 10),
+    retries: parseInt(process.env.COORDINATOR_RETRIES ?? "3", 10),
+  },
+  yolo: {
+    enabled: process.env.YOLO_MODE === "true",
+  },
 }));