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-activity/[id]/undo/route.ts

@@ -0,0 +1,41 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getAuthUser, createErrorResponse } from '@/lib/auth';
+import { createPocketBaseClient } from '@/lib/pocketbase';
+
+type RouteContext = { params: Promise<{ id: string }> };
+
+// POST /api/agent-activity/[id]/undo — Undo an agent action
+export async function POST(request: NextRequest, context: RouteContext) {
+  const user = await getAuthUser(request);
+  if (!user) {
+    return NextResponse.json(
+      { error: { code: 'UNAUTHORIZED', message: 'Authentication required' } },
+      { status: 401 }
+    );
+  }
+
+  const { id } = await context.params;
+
+  try {
+    const pb = createPocketBaseClient();
+
+    // Get the activity record
+    const activity = await pb.collection('agent_activity').getOne(id);
+
+    if (!activity.before_state) {
+      return createErrorResponse('CANNOT_UNDO', 'This action cannot be undone', 400);
+    }
+
+    // Restore the previous state
+    const entityType = activity.entity_type;
+    const entityId = activity.entity_id;
+    const beforeState = activity.before_state;
+
+    await pb.collection(entityType).update(entityId, beforeState);
+
+    return NextResponse.json({ success: true, message: 'Action undone' });
+  } catch (error) {
+    console.error('Failed to undo activity:', error);
+    return createErrorResponse('UNDO_FAILED', 'Failed to undo action', 500);
+  }
+}

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

@@ -0,0 +1,24 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { withAuth } from '@/lib/auth';
+import { createPocketBaseClient } from '@/lib/pocketbase';
+
+// GET /api/agent-activity — List agent activity
+export const GET = withAuth(async (request: NextRequest) => {
+  const { searchParams } = new URL(request.url);
+  const page = parseInt(searchParams.get('page') || '1');
+  const perPage = parseInt(searchParams.get('perPage') || '50');
+  const sort = searchParams.get('sort') || '-created';
+
+  const pb = createPocketBaseClient();
+  const result = await pb.collection('agent_activity').getList(page, perPage, {
+    sort,
+  });
+
+  return NextResponse.json({
+    items: result.items,
+    totalItems: result.totalItems,
+    totalPages: result.totalPages,
+    page: result.page,
+    perPage: result.perPage,
+  });
+});