Vela Platform v2: single monolith, real P&L, bilingual marketing site

database.py

@@ -0,0 +1,34 @@
+"""Database setup — SQLite with WAL mode, foreign keys, busy timeout."""
+import os
+
+from sqlalchemy import create_engine, event
+from sqlalchemy.orm import sessionmaker
+
+DB_DIR = os.environ.get("VELA_DB_DIR", os.path.dirname(os.path.abspath(__file__)))
+DB_PATH = os.path.join(DB_DIR, "vela.db")
+DATABASE_URL = f"sqlite:///{DB_PATH}"
+
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False},
+    echo=False,
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+
+@event.listens_for(engine, "connect")
+def _set_sqlite_pragmas(dbapi_connection, connection_record):
+    cursor = dbapi_connection.cursor()
+    cursor.execute("PRAGMA journal_mode=WAL")
+    cursor.execute("PRAGMA foreign_keys=ON")
+    cursor.execute("PRAGMA busy_timeout=5000")
+    cursor.close()
+
+
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()