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/tools/work-start.ts

@@ -12,10 +12,10 @@ import type { StateLabel } from "../providers/provider.js";
 import { selectLevel } from "../model-selector.js";
 import { getWorker } from "../projects.js";
 import { dispatchTask } from "../dispatch.js";
-import { findNextIssue, detectRoleFromLabel, detectLevelFromLabels } from "../services/tick.js";
+import { findNextIssue, detectRoleFromLabel, detectLevelFromLabels } from "../services/queue-scan.js";
 import { getAllRoleIds, isLevelForRole } from "../roles/index.js";
 import { requireWorkspaceDir, resolveProject, resolveProvider, getPluginConfig } from "../tool-helpers.js";
-import { loadWorkflow, getActiveLabel } from "../workflow.js";
+import { loadWorkflow, getActiveLabel, ExecutionMode } from "../workflow.js";
 
 export function createWorkStartTool(api: OpenClawPluginApi) {
   return (ctx: ToolContext) => ({
@@ -70,7 +70,7 @@ export function createWorkStartTool(api: OpenClawPluginApi) {
       // Check worker availability
       const worker = getWorker(project, role);
       if (worker.active) throw new Error(`${role.toUpperCase()} already active on ${project.name} (issue: ${worker.issueId})`);
-      if ((project.roleExecution ?? "parallel") === "sequential") {
+      if ((project.roleExecution ?? ExecutionMode.PARALLEL) === ExecutionMode.SEQUENTIAL) {
         for (const [otherRole, otherWorker] of Object.entries(project.workers)) {
           if (otherRole !== role && otherWorker.active) {
             throw new Error(`Sequential roleExecution: ${otherRole.toUpperCase()} is active`);