fix: Multi-Pass nur beim ersten Refresh einer Research-Lage

3 automatische Durchläufe laufen nur wenn noch kein Briefing existiert
(erster Refresh). Folge-Refreshes machen wie bisher einen einzelnen
Durchlauf, um unnötige Token-Kosten zu vermeiden.

src/agents/orchestrator.py

@@ -480,12 +480,13 @@ class AgentOrchestrator:
             last_error = None
 
             try:
-                # Research-Lagen: Automatisch 3 Durchläufe
-                incident_type = await self._get_incident_type(incident_id)
+                # Research-Lagen: Automatisch 3 Durchläufe nur beim ersten Refresh
+                incident_type, has_summary = await self._get_incident_info(incident_id)
+                use_multi_pass = incident_type == "research" and not has_summary
 
                 for attempt in range(3):
                     try:
-                        if incident_type == "research":
+                        if use_multi_pass:
                             await self._run_research_multi_pass(incident_id, trigger_type=trigger_type, user_id=user_id)
                         else:
                             await self._run_refresh(incident_id, trigger_type=trigger_type, retry_count=attempt, user_id=user_id)
@@ -1398,16 +1399,18 @@ class AgentOrchestrator:
             await db.close()
 
 
-    async def _get_incident_type(self, incident_id: int) -> str:
-        """Incident-Typ laden (adhoc/research)."""
+    async def _get_incident_info(self, incident_id: int) -> tuple[str, bool]:
+        """Incident-Typ und Summary-Status laden."""
         from database import get_db
         db = await get_db()
         try:
             cursor = await db.execute(
-                "SELECT type FROM incidents WHERE id = ?", (incident_id,)
+                "SELECT type, summary FROM incidents WHERE id = ?", (incident_id,)
             )
             row = await cursor.fetchone()
-            return row["type"] if row else "adhoc"
+            if not row:
+                return "adhoc", False
+            return row["type"] or "adhoc", bool(row["summary"])
         finally:
             await db.close()