feat: implement structured logging for server and client

Server:
- Add pino and pino-http for structured logging
- Create @Logged class decorator using Proxy pattern for automatic method logging
- Add pino redact config for sensitive data (password, token, etc.)
- Move AuthMiddleware to controllers folder (per architecture diagram)
- Add LoggingMiddleware for HTTP request logging
- Replace console.log/error with structured logger in controllers and app.ts
- Decorate all repositories and GPTAdapter with @Logged

Client:
- Add react-native-logs with namespaced loggers (apiLogger, storeLogger)
- Add request/response logging to ApiClient with duration tracking

apps/server/src/app.ts

@@ -3,7 +3,12 @@ import mongoose from "mongoose";
 import "dotenv/config";
 
 import { createRoutes } from "./routes";
-import { AuthController, ChatController, EventController } from "./controllers";
+import {
+  AuthController,
+  ChatController,
+  EventController,
+  httpLogger,
+} from "./controllers";
 import { AuthService, ChatService, EventService } from "./services";
 import {
   MongoUserRepository,
@@ -11,6 +16,7 @@ import {
   MongoChatRepository,
 } from "./repositories";
 import { GPTAdapter } from "./ai";
+import { logger } from "./logging";
 
 const app = express();
 const port = process.env.PORT || 3000;
@@ -18,6 +24,7 @@ const mongoUri = process.env.MONGODB_URI || "mongodb://localhost:27017/caldav";
 
 // Middleware
 app.use(express.json());
+app.use(httpLogger);
 
 // CORS - only needed for web browser development
 // Native mobile apps don't send Origin headers and aren't affected by CORS
@@ -86,7 +93,7 @@ app.post("/api/ai/test", async (req, res) => {
     });
     res.json(result);
   } catch (error) {
-    console.error("AI test error:", error);
+    logger.error({ error }, "AI test error");
     res.status(500).json({ error: String(error) });
   }
 });
@@ -95,13 +102,13 @@ app.post("/api/ai/test", async (req, res) => {
 async function start() {
   try {
     await mongoose.connect(mongoUri);
-    console.log("Connected to MongoDB");
+    logger.info("Connected to MongoDB");
 
     app.listen(port, () => {
-      console.log(`Server running on port ${port}`);
+      logger.info({ port }, "Server started");
     });
   } catch (error) {
-    console.error("Failed to start server:", error);
+    logger.fatal({ error }, "Failed to start server");
     process.exit(1);
   }
 }