v1.7.0: Rebrand AniKatoAPI → AniKotoAPI

BREAKING: Complete project rebrand across 66 files
- AniKatoAPI → AniKotoAPI (project name)
- AniKato → AniKoto (brand references)
- anikato.vercel.app → anikoto.vercel.app (URLs)
- anikototv.to preserved (source website domain)
- Updated: README, package.json, server.js, all controllers,
  extractors, configs, routes, public pages, legal docs

render.yaml

@@ -1,6 +1,6 @@
 services:
   - type: web
-    name: AniKatoAPI
+    name: AniKotoAPI
     env: node
     buildCommand: npm install
     startCommand: npm start