fix(rag): 修正 debug endpoint 與訊息文字 — Ollama 188→111

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/src/api/v1/rag.py

@@ -45,7 +45,7 @@ async def trigger_index(background_tasks: BackgroundTasks) -> RagIndexResponse:
     background_tasks.add_task(_run_index)
     return RagIndexResponse(
         status="accepted",
-        message="索引已排程，背景執行中（nomic-embed-text @ Ollama 188）",
+        message="索引已排程，背景執行中（nomic-embed-text @ Ollama 111）",
     )
 
 
@@ -76,14 +76,14 @@ async def rag_debug() -> dict:
     try:
         async with httpx.AsyncClient(timeout=10.0) as c:
             r = await c.post(
-                "http://192.168.0.188:11434/api/embeddings",
+                "http://192.168.0.111:11434/api/embeddings",
                 json={"model": "nomic-embed-text", "prompt": "test"},
             )
             ollama_ok = r.status_code == 200 if r.status_code == 200 else f"http_{r.status_code}"
     except Exception as e:
         ollama_ok = f"error: {type(e).__name__}: {e}"
 
-    return {"cwd": os.getcwd(), "paths": paths_check, "ollama_188_embed": ollama_ok}
+    return {"cwd": os.getcwd(), "paths": paths_check, "ollama_111_embed": ollama_ok}
 
 
 @router.get("/stats", summary="索引統計")