feat: enhance workflow and testing infrastructure

- Introduced ExecutionMode type for project execution modes (parallel, sequential).
- Updated SetupOpts to use ExecutionMode instead of string literals.
- Enhanced workflow states to include a new "In Review" state with appropriate transitions.
- Implemented TestHarness for end-to-end testing, including command interception and workspace setup.
- Created TestProvider for in-memory issue tracking during tests.
- Refactored project registration and setup tools to utilize ExecutionMode.
- Updated various tools to ensure compatibility with new workflow and execution modes.
- Added new dependencies: cockatiel for resilience and zod for schema validation.

lib/roles/registry.ts

@@ -30,7 +30,7 @@ export const ROLE_REGISTRY: Record<string, RoleConfig> = {
       senior: "🧠",
     },
     fallbackEmoji: "🔧",
-    completionResults: ["done", "blocked"],
+    completionResults: ["done", "review", "blocked"],
     sessionKeyPattern: "developer",
     notifications: { onStart: true, onComplete: true },
   },