feat: implement command status update and enhance MQTT message handling

modules/db.py

@@ -0,0 +1,22 @@
+import sqlite3
+import os
+from datetime import datetime, timedelta
+
+DB_PATH = os.path.join(os.path.dirname(__file__), '../db/commands.db')
+
+### THIS CODE IS NOT PROOFED BUT LOOKS RIGHT###
+def update_command_status(command_id, status):
+    conn = sqlite3.connect(DB_PATH)
+    cursor = conn.cursor()
+    
+    cursor.execute("""
+        UPDATE commands
+        SET status = ?
+        WHERE command_id = ?
+    """, (status, command_id))
+    
+    conn.commit()
+    conn.close()
+    print(f"[DB] Befehl {command_id} auf {status} aktualisiert.")
+    return status
+### THIS CODE IS NOT PROOFED BUT LOOKS RIGHT###