Add docs endpoint; remove psycopg2 import

Remove unused psycopg2 import, add a /docs entry to the root endpoints list, and include base_url in the response meta (removing the duplicated base_url key). Small cleanup to tidy imports and expose the documentation URL from the API root.

Author: goldlabelapps

app/api/root.py

@@ -1,7 +1,6 @@
 from app import __version__
 from fastapi import APIRouter
 import os, time
-import psycopg2
 from dotenv import load_dotenv
 from app import __version__
 
@@ -14,14 +13,15 @@ def root() -> dict:
     base_url = os.getenv("BASE_URL", "http://localhost:8000")
     epoch = int(time.time() * 1000)
     meta = {
+        "base_url": base_url,
         "version": __version__,
         "time": time.strftime('%Y-%m-%d %H:%M:%S', time.localtime()),
         "epoch": epoch,
         "severity": "success",
         "message": f"NX AI says hello",
-        "base_url": base_url
     }
     endpoints = [
+        {"docs": "docs", "url": f"{base_url}/docs"},
         {"name": "health", "url": f"{base_url}/health"},
         {"name": "products", "url": f"{base_url}/products"}
     ]