feat: setup postgresql connection via DATABASE_URL

database.py

@@ -8,7 +8,11 @@ class FlightReport(SQLModel, table=True):
     duration_frames: int
     chaos_anomalies: int
 
-engine = create_engine("sqlite:///crowd_data.db")
+import os
+
+DATABASE_URL = os.environ.get("DATABASE_URL", "sqlite:///crowd_data.db")
+
+engine = create_engine(DATABASE_URL)
 
 def init_db():
     SQLModel.metadata.create_all(engine)

requirements.txt

@@ -20,6 +20,7 @@ scikit-learn
 
 # ── Database ORM ─────────────────────────────────────────────────
 sqlmodel
+psycopg2-binary
 
 # ── Misc utilities ───────────────────────────────────────────────
 easydict