Added PostgreSQL RDS database. Added channels protected endpoints. Added scripts and docker config to run application locally in dev mode.

app/models/db.py

@@ -0,0 +1,18 @@
+from datetime import datetime, timezone
+from sqlalchemy import Column, String, JSON, DateTime
+from sqlalchemy.ext.declarative import declarative_base
+
+Base = declarative_base()
+
+class ChannelDB(Base):
+    """SQLAlchemy model for IPTV channels"""
+    __tablename__ = "channels"
+
+    tvg_id = Column(String, primary_key=True)
+    name = Column(String, nullable=False)
+    group_title = Column(String)
+    tvg_name = Column(String)
+    tvg_logo = Column(String)
+    urls = Column(JSON)  # Stores list of URLs as JSON
+    created_at = Column(DateTime, default=lambda: datetime.now(timezone.utc))
+    updated_at = Column(DateTime, default=lambda: datetime.now(timezone.utc), onupdate=lambda: datetime.now(timezone.utc))