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>

.woodpecker/build-ci-image.yml

@@ -0,0 +1,37 @@
+# One-time pipeline to build the custom Python CI image
+# Trigger manually, then delete this file
+#
+# This builds the breakpilot/python-ci:3.12 image on the CI runner
+
+when:
+  - event: manual
+
+clone:
+  git:
+    image: woodpeckerci/plugin-git
+    settings:
+      depth: 1
+    extra_hosts:
+      - macmini:192.168.178.100
+
+steps:
+  build-python-ci-image:
+    image: docker:27-cli
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    commands:
+      - |
+        echo "=== Building breakpilot/python-ci:3.12 ==="
+
+        docker build \
+          -t breakpilot/python-ci:3.12 \
+          -t breakpilot/python-ci:latest \
+          -f .docker/python-ci.Dockerfile \
+          .
+
+        echo ""
+        echo "=== Build complete ==="
+        docker images | grep breakpilot/python-ci
+
+        echo ""
+        echo "Image is now available for CI pipelines!"