feat: implement MCP server with tools, Post API tests, auth middleware
- Create TryPostServer MCP server with 17 tools:
Post (List, Get, Create, Delete), Hashtag (List, Create, Update, Delete),
Label (List, Create, Update, Delete), Workspace (Get),
ApiKey (List, Create, Delete)
- Create AuthenticateMcpToken middleware (logs in workspace owner)
- Register mcp.auth middleware alias in bootstrap/app.php
- Create routes/ai.php with mcp.trypost.test subdomain
- Add PostApiTest with 6 tests (list, show, create, delete, isolation)
- Fix PostApiTest assertions for pagination/resource wrapping
- 704 tests passing, frontend build passing
fabce14aad