Improve production stability by fixing backup directory permissions

Adjust Dockerfile to create and grant permissions for backup directories, install PostgreSQL client for backups, and update BackupService to use the correct production backup path to resolve EACCES errors.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 7c468936-2a88-4686-ac0a-84921a45222d
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/7c468936-2a88-4686-ac0a-84921a45222d/K3Lzcje

server/backupService.ts

@@ -15,15 +15,40 @@ export class BackupService {
   private maxBackups = 10;
 
   constructor() {
-    this.backupDir = path.join(process.cwd(), 'backups');
+    // Use /app/backups in production (with proper permissions), or use env variable
+    const isProduction = process.env.NODE_ENV === 'production';
+    this.backupDir = isProduction 
+      ? process.env.BACKUP_DIR || '/app/backups'
+      : path.join(process.cwd(), 'backups');
+    
     this.ensureBackupDirectory();
     this.scheduleAutomaticBackup();
   }
 
   private ensureBackupDirectory(): void {
-    if (!fs.existsSync(this.backupDir)) {
-      fs.mkdirSync(this.backupDir, { recursive: true });
-      console.log('📁 Backup directory created:', this.backupDir);
+    try {
+      if (!fs.existsSync(this.backupDir)) {
+        fs.mkdirSync(this.backupDir, { recursive: true });
+        console.log('📁 Backup directory created:', this.backupDir);
+      }
+    } catch (error) {
+      console.error('❌ Failed to create backup directory:', error);
+      // Fallback to /tmp if current directory fails
+      if (this.backupDir !== '/tmp/backups') {
+        this.backupDir = '/tmp/backups';
+        console.log('🔄 Falling back to /tmp/backups');
+        try {
+          if (!fs.existsSync(this.backupDir)) {
+            fs.mkdirSync(this.backupDir, { recursive: true });
+            console.log('📁 Fallback backup directory created:', this.backupDir);
+          }
+        } catch (fallbackError) {
+          console.error('❌ Failed to create fallback directory:', fallbackError);
+          throw fallbackError;
+        }
+      } else {
+        throw error;
+      }
     }
   }