feat(api): project initialization

api/app/config.py

@@ -0,0 +1,13 @@
+import os
+
+# Database configuration
+DATABASE_URL = "sqlite:///./joke.db"
+
+# JWT configuration
+JWT_SECRET_KEY = os.getenv("JWT_SECRET_KEY", "your-secret-key-change-in-production")
+JWT_ALGORITHM = "HS256"
+JWT_EXPIRATION_HOURS = 24
+
+# API configuration
+API_TITLE = "笑话大全 API"
+API_VERSION = "1.0.0"

api/app/database.py

@@ -0,0 +1,26 @@
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from app.config import DATABASE_URL
+
+# Create engine
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+
+# Create SessionLocal class
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+# Create Base class
+Base = declarative_base()
+
+
+def get_db():
+    """Dependency to get database session."""
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()