fix(discord_bot): unified prompt JSON '{' parsing fallback

_test_classify.py

@@ -8,25 +8,11 @@ sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding="utf-8", errors="repla
 sys.path.insert(0, ".")
 
 from core.gemini_caller import GeminiCaller
-
+from api.discord_bot import _parse_unified_response
 
 def extract_mode(raw):
-    start = raw.find("{")
-    if start == -1:
-        return "NO_JSON"
-    depth = 0
-    for i in range(start, len(raw)):
-        if raw[i] == "{":
-            depth += 1
-        elif raw[i] == "}":
-            depth -= 1
-            if depth == 0:
-                try:
-                    p = json.loads(raw[start : i + 1])
-                    return p.get("mode", "?")
-                except json.JSONDecodeError:
-                    return "PARSE_ERR"
-    return "NO_CLOSE"
+    parsed = _parse_unified_response(raw)
+    return parsed.get("mode", "?")
 
 
 async def main():