Auto-resume: cleanup stuck jobs on container startup + GEMINI_API_KEY env

- @app.on_event(startup) marks all status=processing jobs as error after restart
- Process endpoint now clears chorus_error/interrupted_at on retry (retry-friendly)
- GEMINI_API_KEY added to Coolify env (Gemini 3.1 Pro now active)
- User can now choose Gemini in UI dropdown for analysis

app/main.py

@@ -373,6 +373,34 @@ app = FastAPI(title="Reels Clipper")
 app.mount("/static", StaticFiles(directory=Path(__file__).parent.parent / "static"), name="static")
 
 
+@app.on_event("startup")
+async def cleanup_stuck_jobs():
+    """Ob startu containerja: označi vse 'processing' jobs kot prekinjene.
+    
+    Ko Coolify deployа nov container, prejšnji se ubije sredi obdelave,
+    JSON file pa ostane status='processing'. Tukaj preverimo in počistimo.
+    """
+    print("🔄 Preverjam stuck jobs...")
+    cleaned = 0
+    for f in JOBS_DIR.glob("*.json"):
+        try:
+            j = json.loads(f.read_text())
+            if j.get("status") == "processing":
+                j["status"] = "error"
+                j["current_step"] = "Prekinjeno (container restart) — naloži ponovno"
+                j["chorus_error"] = "Container restart during deploy. Napaka ni vaša — obnovite z gumbom Process."
+                j["interrupted_at"] = time.time()
+                j["updated_at"] = time.time()
+                f.write_text(json.dumps(j, ensure_ascii=False, indent=2))
+                cleaned += 1
+        except Exception as e:
+            print(f"   ⚠️ Napaka pri {f.name}: {e}")
+    if cleaned > 0:
+        print(f"   ✅ Označenih {cleaned} prekinjenih jobs")
+    else:
+        print("   👍 Ni stuck jobs")
+
+
 @app.get("/", response_class=HTMLResponse)
 async def index(user: str = Depends(check_auth)):
     html = (Path(__file__).parent.parent / "templates" / "index.html").read_text()
@@ -523,6 +551,9 @@ async def start_processing(
         llm_provider=payload.llm_provider,
         llm_model=payload.llm_model,
         current_step="V vrsti za obdelavo",
+        # Počisti pretekle napake (retry-friendly)
+        chorus_error=None,
+        interrupted_at=None,
     )
     background.add_task(process_job, payload.job_id)
     return load_job(payload.job_id)