fix: docker-compose 持久化 SQLite 数据库; 迁移 DB 路径到 data/ 子目录

- docker-compose.yml: bind mount → named volume (auv_data:/app/data)
- backend/database.py: DB_PATH 改为 data/stock_data.db，自动迁移旧数据库
- .gitignore: 忽略 *.db 文件

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.gitignore

@@ -7,6 +7,11 @@
 *.bak
 *.orig
 
+# 数据库文件
+*.db
+*.sqlite
+*.sqlite3
+
 # 环境变量与密钥
 .env
 .env.local

backend/database.py

@@ -1,7 +1,7 @@
 import sqlite3
 import os
 
-DB_PATH = os.path.join(os.path.dirname(__file__), "stock_data.db")
+DB_PATH = os.path.join(os.path.dirname(__file__), "data", "stock_data.db")
 
 SCHEMA_SQL = """
 CREATE TABLE IF NOT EXISTS stock_collections (
@@ -41,6 +41,7 @@ CREATE TABLE IF NOT EXISTS cache (
 
 
 def get_connection() -> sqlite3.Connection:
+    os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)
     conn = sqlite3.connect(DB_PATH)
     conn.row_factory = sqlite3.Row
     conn.execute("PRAGMA foreign_keys = ON")
@@ -48,6 +49,13 @@ def get_connection() -> sqlite3.Connection:
 
 
 def init_db():
+    # 迁移旧版 DB（backend/stock_data.db → backend/data/stock_data.db）
+    old_path = os.path.join(os.path.dirname(__file__), "stock_data.db")
+    if os.path.exists(old_path) and os.path.isfile(old_path):
+        import shutil
+        shutil.move(old_path, DB_PATH)
+        print(f"[database] 已迁移 stock_data.db → data/stock_data.db")
+
     conn = get_connection()
     conn.executescript(SCHEMA_SQL)
 

docker-compose.yml

@@ -7,3 +7,8 @@ services:
     env_file:
       - .env
     restart: unless-stopped
+    volumes:
+      - auv_data:/app/data
+
+volumes:
+  auv_data: