fix: add try/finally safety net for lock release in beteiligte_sync handler – guarantees Redis key cleanup on any exit path

src/steps/crm/beteiligte/beteiligte_sync_event_step.py

@@ -88,7 +88,7 @@ async def handler(event_data: Dict[str, Any], ctx: FlowContext[Any]) -> None:
             ctx.logger.warn(f"⏸️  Sync bereits aktiv für {entity_id}, überspringe")
             return
         
-        # Lock erfolgreich acquired - MUSS im finally block released werden!
+        # Lock erfolgreich acquired
         try:
             # 2. FETCH ENTITY VON ESPOCRM
             try:
@@ -97,23 +97,23 @@ async def handler(event_data: Dict[str, Any], ctx: FlowContext[Any]) -> None:
                 ctx.logger.error(f"❌ Fehler beim Laden von EspoCRM Entity: {e}")
                 await sync_utils.release_sync_lock(entity_id, 'failed', str(e), increment_retry=True)
                 return
-            
+
             ctx.logger.info(f"📋 Entity geladen: {espo_entity.get('name')} (betnr: {espo_entity.get('betnr')})")
-            
+
             betnr = espo_entity.get('betnr')
             sync_status = espo_entity.get('syncStatus', 'pending_sync')
-            
+
             # Check Retry-Backoff - überspringe wenn syncNextRetry noch nicht erreicht
             sync_next_retry = espo_entity.get('syncNextRetry')
             if sync_next_retry and sync_status == 'failed':
                 import datetime
                 import pytz
-                
+
                 try:
                     next_retry_ts = datetime.datetime.strptime(sync_next_retry, '%Y-%m-%d %H:%M:%S')
                     next_retry_ts = pytz.UTC.localize(next_retry_ts)
                     now_utc = datetime.datetime.now(pytz.UTC)
-                    
+
                     if now_utc < next_retry_ts:
                         remaining_minutes = int((next_retry_ts - now_utc).total_seconds() / 60)
                         ctx.logger.info(f"⏸️  Retry-Backoff aktiv: Nächster Versuch in {remaining_minutes} Minuten")
@@ -121,34 +121,34 @@ async def handler(event_data: Dict[str, Any], ctx: FlowContext[Any]) -> None:
                         return
                 except Exception as e:
                     ctx.logger.warn(f"⚠️  Fehler beim Parsen von syncNextRetry: {e}")
-            
+
             # 3. BESTIMME SYNC-AKTION
-            
+
             # FALL A: Neu (kein betnr) → CREATE in Advoware
             if not betnr and action in ['create', 'sync_check']:
                 ctx.logger.info(f"🆕 Neuer Beteiligter → CREATE in Advoware")
                 await handle_create(entity_id, espo_entity, espocrm, advoware, sync_utils, mapper, ctx)
-            
+
             # FALL B: Existiert (hat betnr) → UPDATE oder CHECK
             elif betnr:
                 ctx.logger.info(f"♻️  Existierender Beteiligter (betNr: {betnr}) → UPDATE/CHECK")
                 await handle_update(entity_id, betnr, espo_entity, espocrm, advoware, sync_utils, mapper, ctx)
-            
+
             # FALL C: DELETE (TODO: Implementierung später)
             elif action == 'delete':
                 ctx.logger.warn(f"🗑️  DELETE noch nicht implementiert für {entity_id}")
                 await sync_utils.release_sync_lock(entity_id, 'failed', 'Delete-Operation nicht implementiert')
-            
+
             else:
                 ctx.logger.warn(f"⚠️  Unbekannte Kombination: action={action}, betnr={betnr}")
                 await sync_utils.release_sync_lock(entity_id, 'failed', f'Unbekannte Aktion: {action}')
-        
+
         except Exception as e:
-            # Unerwarteter Fehler während Sync - GARANTIERE Lock-Release
+            # Unerwarteter Fehler während Sync - Lock-Release via finally
             ctx.logger.error(f"❌ Unerwarteter Fehler im Sync-Handler: {e}")
             import traceback
             ctx.logger.error(traceback.format_exc())
-            
+
             try:
                 await sync_utils.release_sync_lock(
                     entity_id,
@@ -157,15 +157,16 @@ async def handler(event_data: Dict[str, Any], ctx: FlowContext[Any]) -> None:
                     increment_retry=True
                 )
             except Exception as release_error:
-                # Selbst Lock-Release failed - logge kritischen Fehler
-                ctx.logger.critical(f"🚨 CRITICAL: Lock-Release failed für {entity_id}: {release_error}")
-                # Force Redis lock release
-                try:
-                    lock_key = f"sync_lock:cbeteiligte:{entity_id}"
-                    redis_client.delete(lock_key)
-                    ctx.logger.info(f"✅ Redis lock manuell released: {lock_key}")
-                except:
-                    pass
+                ctx.logger.critical(f"🚨 CRITICAL: release_sync_lock failed für {entity_id}: {release_error}")
+            raise
+
+        finally:
+            # Safety net: force Redis lock release regardless of outcome
+            try:
+                force_lock_key = f"sync_lock:cbeteiligte:{entity_id}"
+                redis_client.delete(force_lock_key)
+            except Exception as cleanup_err:
+                ctx.logger.error(f"❌ Force Lock-Release fehlgeschlagen: {cleanup_err}")
         
     except Exception as e:
         # Fehler VOR Lock-Acquire - kein Lock-Release nötig