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

app/models/schemas.py

@@ -0,0 +1,17 @@
+from datetime import datetime
+from typing import List
+from pydantic import BaseModel
+
+class ChannelCreate(BaseModel):
+    """Pydantic model for creating channels"""
+    urls: List[str]
+    name: str
+    group_title: str
+    tvg_id: str
+    tvg_logo: str
+    tvg_name: str
+
+class ChannelResponse(ChannelCreate):
+    """Pydantic model for channel responses"""
+    created_at: datetime
+    updated_at: datetime