refactor: migrate to monorepo structure with Docker, PocketBase, and e2e tests

- Reorganize into apps/, packages/, docs/, e2e/, pocketbase/ directories
- Add Dockerfiles for web, worker, and PocketBase services
- Add docker-compose.yml for local orchestration
- Add turbo.json for monorepo task management
- Add Playwright e2e test infrastructure
- Add PocketBase backend with migrations
- Remove Vite/Next.js/ESLint/PostCSS config files
- Update package.json with workspace dependencies
- Add .env.example and .dockerignore

apps/web/app/api/agent-webhook/route.ts

@@ -0,0 +1,45 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { createAdminClient } from '@/lib/pocketbase';
+import { emitEvent, EVENTS } from '@/lib/events/event-bus';
+
+// POST /api/agent-webhook — Receive async agent results
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const { agent_task_id, result, status } = body;
+
+    if (!agent_task_id) {
+      return NextResponse.json(
+        { error: { code: 'VALIDATION_ERROR', message: 'agent_task_id is required' } },
+        { status: 400 },
+      );
+    }
+
+    const pb = createAdminClient();
+
+    // Update agent task with result
+    await pb.collection('agent_tasks').update(agent_task_id, {
+      status: status || 'completed',
+      output: result || {},
+    });
+
+    // Get the agent task to emit event
+    const agentTask = await pb.collection('agent_tasks').getOne(agent_task_id);
+
+    // Emit completion event
+    emitEvent(EVENTS.AGENT_TASK_COMPLETED, {
+      agentTaskId: agent_task_id,
+      agentId: agentTask.agent_id as string,
+      entityType: (agentTask.entity_type as string) || '',
+      entityId: (agentTask.entity_id as string) || '',
+      userId: 'agent',
+    });
+
+    return NextResponse.json({ success: true });
+  } catch {
+    return NextResponse.json(
+      { error: { code: 'INTERNAL_ERROR', message: 'Failed to process agent webhook' } },
+      { status: 500 },
+    );
+  }
+}