feat: add source IP in request logs (#4356)

Adds the source IP address to HTTP request logs by modifying the morgan
logging configuration in `api/app.ts`.

**Changes:**
- Replaced predefined morgan formats (`'tiny'` and `'dev'`) with custom
format strings that include `:remote-addr`
- The new format is: `:remote-addr :method :url :status
:res[content-length] - :response-time ms`
- Applied to both color and no-color logging modes consistently

**Benefits:**
- Request logs now show the client IP address, improving debugging and
monitoring capabilities
- Works correctly with the existing `TRUST_PROXY` configuration to
extract real client IPs from proxy headers (X-Forwarded-For, etc.)
- Maintains backward compatibility with existing log parsing tools

**Example log output:**
```
2025-09-03 11:57:57.362 INFO APP: ::1 GET /health 404 1345 - 5.948 ms
2025-09-03 11:58:44.893 INFO APP: 192.168.1.100 POST /api/settings 200 156 - 12.334 ms
```

The `:remote-addr` token automatically handles IPv4/IPv6 addresses and
respects Express.js trust proxy settings for proper IP extraction when
deployed behind reverse proxies or load balancers.

Fixes #4355.

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Author: Copilot

api/app.ts

@@ -508,9 +508,12 @@ if (process.env.TRUST_PROXY) {
 }
 
 app.use(
-	morgan(loggers.disableColors ? 'tiny' : 'dev', {
-		stream: { write: (msg: string) => logger.info(msg.trimEnd()) },
-	}) as RequestHandler,
+	morgan(
+		':remote-addr :method :url :status :res[content-length] - :response-time ms',
+		{
+			stream: { write: (msg: string) => logger.info(msg.trimEnd()) },
+		},
+	) as RequestHandler,
 )
 app.use(express.json({ limit: '50mb' }) as RequestHandler)
 app.use(