Added in_use and priority_id field for channels urls. Added priorities table. Setup sql alchemy migration. Generate first migration.

scripts/install.sh

@@ -2,4 +2,10 @@
 
 # Install dependencies and deploy infrastructure
 npm install -g aws-cdk
-python3 -m pip install -r requirements.txt
+python3 -m pip install -r requirements.txt
+
+# Initialize and run database migrations
+alembic upgrade head
+
+# Seed initial data
+python3 -c "from app.utils.database import SessionLocal; from app.models.db import Priority; db = SessionLocal(); db.add_all([Priority(id=100, description='High'), Priority(id=200, description='Medium'), Priority(id=300, description='Low')]); db.commit()"