refactor: remove db.py and reorganize database initialization

- Deleted db.py to streamline database management and reduce redundancy.
- Updated main.py to directly import init_db from the database module, simplifying the database initialization process.
- Introduced auth_router.py to handle authentication routes, enhancing modularity and organization of the codebase.
- Ensured dotenv loading is handled in the database module for consistent environment variable access.

Author: atyrode

src/backend/database/database.py

@@ -13,6 +13,10 @@
 
 from .models import Base, SCHEMA_NAME
 
+from dotenv import load_dotenv
+
+load_dotenv()
+
 # PostgreSQL connection configuration
 DB_USER = os.getenv('POSTGRES_USER', 'postgres')
 DB_PASSWORD = os.getenv('POSTGRES_PASSWORD', 'postgres')

src/backend/db.py

@@ -10,11 +10,10 @@
 from fastapi.staticfiles import StaticFiles
 from dotenv import load_dotenv
 
-from db import init_db
-from database import init_db as init_database
+from database import init_db
 from config import STATIC_DIR, ASSETS_DIR
 from dependencies import UserSession, optional_auth
-from routers.auth import auth_router
+from routers.auth_router import auth_router
 from routers.user_router import user_router
 from routers.workspace_router import workspace_router
 from routers.pad_router import pad_router
@@ -83,7 +82,6 @@ async def load_templates():
 @asynccontextmanager
 async def lifespan(_: FastAPI):
     await init_db()
-    await init_database()
     print("Database connection established successfully")
 
     # Load all templates from the templates directory

src/backend/main.py

@@ -1,12 +1,11 @@
 import secrets
 import jwt
 import httpx
-from fastapi import APIRouter, Request, HTTPException, Depends
+from fastapi import APIRouter, Request, HTTPException
 from fastapi.responses import RedirectResponse, FileResponse, JSONResponse
 import os
 
 from config import get_auth_url, get_token_url, OIDC_CONFIG, set_session, delete_session, STATIC_DIR, get_session
-from dependencies import UserSession, require_auth
 from coder import CoderAPI
 
 auth_router = APIRouter()