Initial commit: iOS Build Server

- FastAPI backend with build queue, WebSocket logs, task management
- Vue 3 frontend with build/config/history views
- Xcode project build automation with IPA export
- Fix: initialize build_dir before try block to ensure cleanup on early failure

backend/database.py

@@ -0,0 +1,39 @@
+"""数据库配置"""
+from sqlalchemy import create_engine, text
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from .config import DATABASE_URL
+
+engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+
+def get_db():
+    """获取数据库会话"""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+
+def _migrate_db():
+    """简单的数据库迁移：为旧表添加缺失的列"""
+    migrations = [
+        ("tasks", "branch", "VARCHAR DEFAULT 'main'"),
+    ]
+    with engine.connect() as conn:
+        for table, column, col_type in migrations:
+            try:
+                conn.execute(text(f"ALTER TABLE {table} ADD COLUMN {column} {col_type}"))
+                conn.commit()
+            except Exception:
+                pass  # 列已存在则忽略
+
+
+def init_db():
+    """初始化数据库"""
+    Base.metadata.create_all(bind=engine)
+    _migrate_db()