From a806ffcabfb3e8e46599b5090dda009a7cc3f3e4 Mon Sep 17 00:00:00 2001
From: "mula.liu" <mula.liu@163.com>
Date: Fri, 13 Mar 2026 15:06:09 +0800
Subject: [PATCH] v0.1.4-p2

---
 backend/core/settings.py | 18 +++++++++++++-----
 backend/main.py          |  2 ++
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/backend/core/settings.py b/backend/core/settings.py
index 4b3d999..9a07cef 100644
--- a/backend/core/settings.py
+++ b/backend/core/settings.py
@@ -5,18 +5,26 @@ from pathlib import Path
 from typing import Final
 from urllib.parse import urlsplit, urlunsplit
 
-from dotenv import load_dotenv
+from dotenv import dotenv_values, load_dotenv
 
 BACKEND_ROOT: Final[Path] = Path(__file__).resolve().parents[1]
 PROJECT_ROOT: Final[Path] = BACKEND_ROOT.parent
 
 # Load env files used by this project.
-# Priority (high -> low, with override=False preserving existing values):
+# Priority (high -> low):
 # 1) process environment
-# 2) backend/.env
-# 3) project/.env.prod
+# 2) project/.env.prod
+# 3) backend/.env
+#
+# We keep process-provided env untouched, while allowing .env.prod to override backend/.env.
+_process_env_keys = set(os.environ.keys())
 load_dotenv(BACKEND_ROOT / ".env", override=False)
-load_dotenv(PROJECT_ROOT / ".env.prod", override=False)
+for _k, _v in dotenv_values(PROJECT_ROOT / ".env.prod").items():
+    if _v is None:
+        continue
+    if _k in _process_env_keys:
+        continue
+    os.environ[_k] = str(_v)
 
 
 def _env_text(name: str, default: str) -> str:
diff --git a/backend/main.py b/backend/main.py
index c2ec907..64f3a36 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -50,6 +50,7 @@ from core.settings import (
     STT_ENABLED,
     STT_MAX_AUDIO_SECONDS,
     STT_MODEL,
+    TOPIC_MCP_INTERNAL_URL,
     TOPIC_PRESET_TEMPLATES,
     TOPIC_PRESETS_TEMPLATES_FILE,
     UPLOAD_MAX_MB,
@@ -510,6 +511,7 @@ async def on_startup():
     print(f"📁 数据库连接: {DATABASE_URL_DISPLAY}")
     print(f"🧠 Redis 缓存: {'enabled' if cache.ping() else 'disabled'} ({REDIS_URL if REDIS_ENABLED else 'not configured'})")
     print(f"🔐 面板访问密码: {'enabled' if str(PANEL_ACCESS_PASSWORD or '').strip() else 'disabled'}")
+    print(f"🧩 Topic MCP internal URL: {TOPIC_MCP_INTERNAL_URL}")
     init_database()
     cache.delete_prefix("")
     with Session(engine) as session: