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/controllers/AuthMiddleware.ts

@@ -0,0 +1,20 @@
+import { Request, Response, NextFunction } from "express";
+import { verifyToken, TokenPayload } from "../utils/jwt";
+
+export interface AuthenticatedRequest extends Request {
+  user?: TokenPayload;
+}
+
+export function authenticate(
+  req: AuthenticatedRequest,
+  res: Response,
+  next: NextFunction,
+): void {
+  // TODO: Implement real JWT verification
+  // Fake user for testing purposes
+  req.user = {
+    userId: "fake-user-id",
+    email: "test@example.com",
+  };
+  next();
+}

apps/server/src/controllers/ChatController.ts

@@ -7,7 +7,10 @@ import {
   GetMessagesOptions,
 } from "@caldav/shared";
 import { ChatService } from "../services";
-import { AuthenticatedRequest } from "../middleware";
+import { createLogger } from "../logging";
+import { AuthenticatedRequest } from "./AuthMiddleware";
+
+const log = createLogger("ChatController");
 
 export class ChatController {
   constructor(private chatService: ChatService) {}
@@ -19,6 +22,7 @@ export class ChatController {
       const response = await this.chatService.processMessage(userId, data);
       res.json(response);
     } catch (error) {
+      log.error({ error, userId: req.user?.userId }, "Error processing message");
       res.status(500).json({ error: "Failed to process message" });
     }
   }
@@ -44,6 +48,7 @@ export class ChatController {
       );
       res.json(response);
     } catch (error) {
+      log.error({ error, conversationId: req.params.conversationId }, "Error confirming event");
       res.status(500).json({ error: "Failed to confirm event" });
     }
   }
@@ -59,6 +64,7 @@ export class ChatController {
       );
       res.json(response);
     } catch (error) {
+      log.error({ error, conversationId: req.params.conversationId }, "Error rejecting event");
       res.status(500).json({ error: "Failed to reject event" });
     }
   }
@@ -72,6 +78,7 @@ export class ChatController {
       const conversations = await this.chatService.getConversations(userId);
       res.json(conversations);
     } catch (error) {
+      log.error({ error, userId: req.user?.userId }, "Error getting conversations");
       res.status(500).json({ error: "Failed to get conversations" });
     }
   }
@@ -102,6 +109,7 @@ export class ChatController {
       if ((error as Error).message === "Conversation not found") {
         res.status(404).json({ error: "Conversation not found" });
       } else {
+        log.error({ error, conversationId: req.params.id }, "Error getting conversation");
         res.status(500).json({ error: "Failed to get conversation" });
       }
     }

apps/server/src/controllers/EventController.ts

@@ -1,6 +1,9 @@
 import { Response } from "express";
 import { EventService } from "../services";
-import { AuthenticatedRequest } from "../middleware";
+import { createLogger } from "../logging";
+import { AuthenticatedRequest } from "./AuthMiddleware";
+
+const log = createLogger("EventController");
 
 export class EventController {
   constructor(private eventService: EventService) {}
@@ -10,7 +13,7 @@ export class EventController {
       const event = await this.eventService.create(req.user!.userId, req.body);
       res.status(201).json(event);
     } catch (error) {
-      console.error("Error creating event:", error);
+      log.error({ error, userId: req.user?.userId }, "Error creating event");
       res.status(500).json({ error: "Failed to create event" });
     }
   }
@@ -27,7 +30,7 @@ export class EventController {
       }
       res.json(event);
     } catch (error) {
-      console.error("Error getting event:", error);
+      log.error({ error, eventId: req.params.id }, "Error getting event");
       res.status(500).json({ error: "Failed to get event" });
     }
   }
@@ -37,7 +40,7 @@ export class EventController {
       const events = await this.eventService.getAll(req.user!.userId);
       res.json(events);
     } catch (error) {
-      console.error("Error getting events:", error);
+      log.error({ error, userId: req.user?.userId }, "Error getting events");
       res.status(500).json({ error: "Failed to get events" });
     }
   }
@@ -69,7 +72,7 @@ export class EventController {
       );
       res.json(events);
     } catch (error) {
-      console.error("Error getting events by range:", error);
+      log.error({ error, start: req.query.start, end: req.query.end }, "Error getting events by range");
       res.status(500).json({ error: "Failed to get events" });
     }
   }
@@ -87,7 +90,7 @@ export class EventController {
       }
       res.json(event);
     } catch (error) {
-      console.error("Error updating event:", error);
+      log.error({ error, eventId: req.params.id }, "Error updating event");
       res.status(500).json({ error: "Failed to update event" });
     }
   }
@@ -104,7 +107,7 @@ export class EventController {
       }
       res.status(204).send();
     } catch (error) {
-      console.error("Error deleting event:", error);
+      log.error({ error, eventId: req.params.id }, "Error deleting event");
       res.status(500).json({ error: "Failed to delete event" });
     }
   }

apps/server/src/controllers/LoggingMiddleware.ts

@@ -0,0 +1,27 @@
+import pinoHttp from "pino-http";
+import { logger } from "../logging";
+
+export const httpLogger = pinoHttp({
+  logger,
+  customLogLevel: (_req, res, err) => {
+    if (res.statusCode >= 500 || err) return "error";
+    if (res.statusCode >= 400) return "warn";
+    return "info";
+  },
+  customSuccessMessage: (req, res) => {
+    return `${req.method} ${req.url} ${res.statusCode}`;
+  },
+  customErrorMessage: (req, _res, err) => {
+    return `${req.method} ${req.url} failed: ${err.message}`;
+  },
+  redact: ["req.headers.authorization"],
+  serializers: {
+    req: (req) => ({
+      method: req.method,
+      url: req.url,
+    }),
+    res: (res) => ({
+      statusCode: res.statusCode,
+    }),
+  },
+});

apps/server/src/controllers/index.ts

@@ -1,3 +1,5 @@
 export * from "./AuthController";
 export * from "./ChatController";
 export * from "./EventController";
+export * from "./AuthMiddleware";
+export * from "./LoggingMiddleware";