Refactor: Integrate backend API and normalize data

This commit integrates the backend API for fetching and updating report data. It also includes a normalization function to handle data consistency between the API and local storage.

Co-authored-by: anthonymuncher <anthonymuncher@gmail.com>

backend/app/database.py

@@ -0,0 +1,43 @@
+# app/database.py
+import os
+from sqlalchemy import create_engine
+from sqlalchemy.orm import sessionmaker, declarative_base
+import logging
+
+# ----------------------
+# Logging Configuration
+# ----------------------
+logging.basicConfig(level=logging.INFO, format="%(asctime)s [%(levelname)s] %(message)s")
+
+# ----------------------
+# Database Configuration
+# ----------------------
+DB_PATH = os.environ.get("FIXMATE_DB", "app/db/fixmate.db")
+os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)
+DATABASE_URL = f"sqlite:///{DB_PATH}"
+
+engine = create_engine(
+    DATABASE_URL,
+    connect_args={"check_same_thread": False},  # Required for SQLite
+    echo=False  # Set True for debugging SQL queries
+)
+
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+Base = declarative_base()
+
+# ----------------------
+# Dependency
+# ----------------------
+def get_db():
+    """
+    Yield a database session for FastAPI dependency injection.
+    Example usage in route:
+        db: Session = Depends(get_db)
+    """
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()
+
+logging.info(f"Database initialized at {DB_PATH}")