Add app auth, dashboard, scheduler, video management, and new scrapers

- JWT-based app authentication with user roles, folder/route access control
- Dashboard with storage stats, health checks, and recent activity
- Auto-download/scrape scheduler (12h interval) with per-user and per-job configs
- Video upload, tagging, HLS transcoding, and detail pages
- New scrapers: LeakGallery, Mega (megajs), yt-dlp
- FlareSolverr integration for Cloudflare-protected sites
- Gallery: advanced filtering (date, size, search), sort modes, equal-mix shuffle
- Forum sites management with stored cookies/auth
- GridWall/GridCell components for responsive media grid
- Media API with folder-access permissions

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -8,8 +8,11 @@ RUN cd client && npm run build
 
 # Stage 2 — Production
 FROM node:20-alpine
-RUN apk add --no-cache ffmpeg openssl python3 py3-pip \
-    && pip3 install --break-system-packages pywidevine
+RUN apk add --no-cache ffmpeg openssl python3 py3-pip intel-media-driver \
+    chromium chromium-chromedriver nss freetype harfbuzz ca-certificates ttf-freefont \
+    xvfb-run xorg-server xf86-video-dummy \
+    && pip3 install --break-system-packages pywidevine yt-dlp gallery-dl \
+       selenium undetected-chromedriver
 WORKDIR /app
 COPY server/package*.json ./server/
 RUN cd server && npm install --production