Add DRM downloads, scrapers, gallery index, and UI improvements

- DRM video download pipeline with pywidevine subprocess for Widevine key acquisition
- Scraper system: forum threads, Coomer/Kemono API, and MediaLink (Fapello) scrapers
- SQLite-backed media index for instant gallery loads with startup scan
- Duplicate detection and gallery filtering/sorting
- HLS video component, log viewer, and scrape management UI
- Dockerfile updated for Python/pywidevine, docker-compose volume for CDM

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/package.json

@@ -7,9 +7,10 @@
     "dev": "node --watch index.js"
   },
   "dependencies": {
-    "express": "^4.21.0",
     "better-sqlite3": "^11.0.0",
-    "node-fetch": "^3.3.2",
-    "cors": "^2.8.5"
+    "cheerio": "^1.2.0",
+    "cors": "^2.8.5",
+    "express": "^4.21.0",
+    "node-fetch": "^3.3.2"
   }
 }