Rename healthz label to Статус на услугата; document live URL.

API tab and OpenAPI summary now say status instead of health; docs point to rip.inex-project.net.

Co-authored-by: Cursor <cursoragent@cursor.com>

webapp/main.py

@@ -317,7 +317,7 @@ def update_keywords(code: str, body: KeywordsUpdate):
     return {"ok": True, "code": code}
 
 
-@app.get("/healthz")
+@app.get("/healthz", summary="Статус на услугата и БД; output_dir_ok, txt_count.")
 def healthz():
     db_status = "ok"
     try: