chore: prepare production deploy bundle

apps/api/src/lib/logger.ts

@@ -1,21 +1,38 @@
+import path from 'path';
+import dotenv from 'dotenv';
 import { generateUlid } from '../utils/ulid';
 import { getTraceId } from './trace-store';
 
+// Load .env so LOG_LEVEL is available even if env.ts hasn't been imported yet
+dotenv.config({ path: path.resolve(__dirname, '../../../../.env') });
+
 const instanceId = generateUlid();
 
+const LEVELS: Record<string, number> = { DEBUG: 10, INFO: 20, WARN: 30, ERROR: 40 };
+const LOG_LEVEL = (process.env.LOG_LEVEL || 'INFO').toUpperCase();
+const MIN_LEVEL = LEVELS[LOG_LEVEL] ?? LEVELS.INFO;
+
+const LOGGER_FILE_MARKER = `${path.sep}lib${path.sep}logger.`;
+
 function getCallerInfo(): { file: string; line: number } {
   const stack = new Error().stack;
   if (!stack) return { file: 'unknown', line: 0 };
 
   const lines = stack.split('\n');
-  // Skip: Error, logger method, actual caller
+  // Skip frames that are inside logger.ts / logger.js; first non-logger frame is the caller.
-  const callerLine = lines[3] || '';
+  for (let i = 1; i < lines.length; i++) {
-  const match = callerLine.match(/\((.+):(\d+):\d+\)/) || callerLine.match(/at (.+):(\d+):\d+/);
+    const line = lines[i];
-  if (match) return { file: match[1], line: parseInt(match[2]) };
+    if (line.includes(LOGGER_FILE_MARKER) || line.includes('/lib/logger.')) continue;
+
+    const match = line.match(/\((.+):(\d+):\d+\)/) || line.match(/at (.+?):(\d+):\d+/);
+    if (match) return { file: match[1], line: parseInt(match[2], 10) };
+  }
   return { file: 'unknown', line: 0 };
 }
 
 function log(level: string, message: string): void {
+  if ((LEVELS[level] ?? 0) < MIN_LEVEL) return;
+
   const caller = getCallerInfo();
   const entry = {
     timestamp: new Date().toISOString(),
@@ -31,8 +48,9 @@ function log(level: string, message: string): void {
 
 export const logger = {
   instanceId,
+  level: LOG_LEVEL,
+  debug: (msg: string) => log('DEBUG', msg),
   info: (msg: string) => log('INFO', msg),
   warn: (msg: string) => log('WARN', msg),
   error: (msg: string) => log('ERROR', msg),
-  debug: (msg: string) => log('DEBUG', msg),
 };