fix: Resolve backend permission errors for temp and logs directories

- Fix MinIO service temp directory path (was going to /temp instead of /app/temp)
- Add TEMP_DIR environment variable support
- Make audit logger optional in development mode to avoid permission issues
- Ensure log directory exists before creating loggers
- Update docker-entrypoint.sh to create temp directory
- Create backend/temp directory with .gitkeep
- Update .gitignore to exclude temp files but keep directory structure

This fixes the EACCES permission errors that were causing the backend to restart.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

.gitignore

@@ -43,6 +43,8 @@ coverage/
 temp/
 tmp/
 *.tmp
+backend/temp/*
+!backend/temp/.gitkeep
 
 # MinIO configuration
 .mc/

backend/docker-entrypoint.sh

@@ -6,5 +6,10 @@ if [ ! -d "/app/logs" ]; then
     mkdir -p /app/logs
 fi
 
+# Ensure temp directory exists
+if [ ! -d "/app/temp" ]; then
+    mkdir -p /app/temp
+fi
+
 # Start the application
 exec node src/app.js

backend/src/services/minio.service.js

@@ -12,7 +12,7 @@ const execAsync = util.promisify(exec);
 class MinIOService {
   constructor(alias = config.minio.defaultAlias) {
     this.alias = alias;
-    this.tempDir = path.join(__dirname, '../../../temp');
+    this.tempDir = process.env.TEMP_DIR || path.join(__dirname, '../../temp');
     this.ensureTempDir();
   }
 

backend/src/utils/logger.js

@@ -1,10 +1,20 @@
 const winston = require('winston');
 const DailyRotateFile = require('winston-daily-rotate-file');
 const path = require('path');
+const fs = require('fs');
 const config = require('../config');
 
 const logDir = process.env.LOG_DIR || path.join(__dirname, '../../logs');
 
+// Ensure log directory exists
+try {
+  if (!fs.existsSync(logDir)) {
+    fs.mkdirSync(logDir, { recursive: true });
+  }
+} catch (error) {
+  console.error('Failed to create log directory:', error);
+}
+
 // Define log format
 const logFormat = winston.format.combine(
   winston.format.timestamp({ format: 'YYYY-MM-DD HH:mm:ss' }),
@@ -72,22 +82,30 @@ const logger = winston.createLogger({
 });
 
 // Create audit logger for security events
-const auditLogger = winston.createLogger({
-  level: 'info',
-  format: logFormat,
-  transports: [
-    new DailyRotateFile({
-      filename: path.join(logDir, 'audit-%DATE%.log'),
-      datePattern: 'YYYY-MM-DD',
-      maxSize: '20m',
-      maxFiles: '90d',
-    })
-  ],
-});
+let auditLogger;
+if (config.app.env === 'production') {
+  auditLogger = winston.createLogger({
+    level: 'info',
+    format: logFormat,
+    transports: [
+      new DailyRotateFile({
+        filename: path.join(logDir, 'audit-%DATE%.log'),
+        datePattern: 'YYYY-MM-DD',
+        maxSize: '20m',
+        maxFiles: '90d',
+      })
+    ],
+    exitOnError: false,
+  });
+} else {
+  // In development, just use the main logger for audit events
+  auditLogger = logger;
+}
 
 // Helper function for audit logging
 const logAudit = (action, { userId, ip, resource, status, details = {} }) => {
-  auditLogger.info({
+  const auditEntry = {
+    audit: true,
     action,
     userId,
     ip,
@@ -95,7 +113,13 @@ const logAudit = (action, { userId, ip, resource, status, details = {} }) => {
     status,
     details,
     timestamp: new Date().toISOString(),
-  });
+  };
+  
+  if (config.app.env === 'production') {
+    auditLogger.info(auditEntry);
+  } else {
+    logger.info('AUDIT:', auditEntry);
+  }
 };
 
 module.exports = {