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/setup/config.ts

@@ -6,6 +6,7 @@
  */
 import type { OpenClawPluginApi } from "openclaw/plugin-sdk";
 import { HEARTBEAT_DEFAULTS } from "../services/heartbeat.js";
+import type { ExecutionMode } from "../workflow.js";
 
 /**
  * Write DevClaw plugin config to openclaw.json plugins section.
@@ -21,7 +22,7 @@ import { HEARTBEAT_DEFAULTS } from "../services/heartbeat.js";
 export async function writePluginConfig(
   api: OpenClawPluginApi,
   agentId?: string,
-  projectExecution?: "parallel" | "sequential",
+  projectExecution?: ExecutionMode,
 ): Promise<void> {
   const config = api.runtime.config.loadConfig() as Record<string, unknown>;