Add OpenMemory (#2676)

Co-authored-by: Saket Aryan <94069182+whysosaket@users.noreply.github.com>
Co-authored-by: Saket Aryan <saketaryan2002@gmail.com>

openmemory/api/app/database.py

@@ -0,0 +1,29 @@
+import os
+from sqlalchemy import create_engine
+from sqlalchemy.orm import declarative_base, sessionmaker
+from dotenv import load_dotenv
+
+# load .env file (make sure you have DATABASE_URL set)
+load_dotenv()
+
+DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///./openmemory.db")
+if not DATABASE_URL:
+    raise RuntimeError("DATABASE_URL is not set in environment")
+
+# SQLAlchemy engine & session
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False}  # Needed for SQLite
+)
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+
+# Base class for models
+Base = declarative_base()
+
+# Dependency for FastAPI
+def get_db():
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()