feat: complete pragativeer v2 frontend and backend, docker setup, and cbt engine

backend/database.py

@@ -0,0 +1,17 @@
+import os
+from sqlmodel import create_engine, SQLModel, Session
+from typing import Generator
+
+DATABASE_URL = os.getenv("DATABASE_URL", "postgresql://pragativeer_admin:local_secure_password_2026@postgres:5432/pragativeer_prod")
+
+# Using the standard SQLModel engine config for PostgreSQL
+engine = create_engine(DATABASE_URL, echo=True)
+
+def init_db():
+    # Automatically generates tables based on the classes imported from models.py
+    import models
+    SQLModel.metadata.create_all(engine)
+
+def get_session() -> Generator[Session, None, None]:
+    with Session(engine) as session:
+        yield session