fix: Restore all files lost during destructive rebase

A previous `git pull --rebase origin main` dropped 177 local commits,
losing 3400+ files across admin-v2, backend, studio-v2, website,
klausur-service, and many other services. The partial restore attempt
(660295e2) only recovered some files.

This commit restores all missing files from pre-rebase ref 98933f5e
while preserving post-rebase additions (night-scheduler, night-mode UI,
NightModeWidget dashboard integration).

Restored features include:
- AI Module Sidebar (FAB), OCR Labeling, OCR Compare
- GPU Dashboard, RAG Pipeline, Magic Help
- Klausur-Korrektur (8 files), Abitur-Archiv (5+ files)
- Companion, Zeugnisse-Crawler, Screen Flow
- Full backend, studio-v2, website, klausur-service
- All compliance SDKs, agent-core, voice-service
- CI/CD configs, documentation, scripts

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

docker/jibri/Dockerfile

@@ -0,0 +1,39 @@
+# Jibri mit MinIO Client, ffmpeg und Xvfb
+# Erweitert das offizielle Jibri-Image um Upload-Funktionalitaet und X11 Display
+
+FROM jitsi/jibri:stable-9823
+
+USER root
+
+# Xvfb, MinIO Client und ffmpeg installieren
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    curl \
+    ffmpeg \
+    xvfb \
+    x11vnc \
+    && curl -fsSL https://dl.min.io/client/mc/release/linux-amd64/mc -o /usr/local/bin/mc \
+    && chmod +x /usr/local/bin/mc \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*
+
+# finalize.sh Script kopieren und ausfuehrbar machen
+COPY finalize.sh /config/finalize.sh
+RUN chmod +x /config/finalize.sh
+
+# Xvfb Startup Script
+COPY start-xvfb.sh /usr/local/bin/start-xvfb.sh
+RUN chmod +x /usr/local/bin/start-xvfb.sh
+
+# Fix permissions for s6 init system
+RUN mkdir -p /var/run/s6 && chown -R jibri:jibri /var/run/s6
+RUN chown -R jibri:jibri /config
+
+# Xvfb Display Konfiguration
+ENV DISPLAY=:0
+ENV RESOLUTION=1920x1080x24
+
+# Custom entrypoint that starts Xvfb
+COPY docker-entrypoint.sh /docker-entrypoint.sh
+RUN chmod +x /docker-entrypoint.sh
+
+ENTRYPOINT ["/docker-entrypoint.sh"]