Add backend setup for video management and database integration

Adds database connection and schema setup in `server/db.ts`, installs `openid-client` and `@types/memoizee` for new backend functionalities, and updates Replit integration settings.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: d7424866-83d1-4486-a212-ac12b4c7becf
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/8cc42625-c1f5-4e43-99bd-77f2c4dedee2/d7424866-83d1-4486-a212-ac12b4c7becf/nN8xkSA

package.json

@@ -44,6 +44,7 @@
     "@radix-ui/react-toggle-group": "^1.1.3",
     "@radix-ui/react-tooltip": "^1.2.0",
     "@tanstack/react-query": "^5.60.5",
+    "@types/memoizee": "^0.4.12",
     "@types/video.js": "^7.3.58",
     "@uppy/aws-s3": "^4.3.2",
     "@uppy/core": "^4.5.2",
@@ -67,8 +68,10 @@
     "hls.js": "^1.6.7",
     "input-otp": "^1.4.2",
     "lucide-react": "^0.453.0",
+    "memoizee": "^0.4.17",
     "memorystore": "^1.6.7",
     "next-themes": "^0.4.6",
+    "openid-client": "^6.6.3",
     "passport": "^0.7.0",
     "passport-local": "^1.0.0",
     "react": "^18.3.1",