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>

backend/frontend/static/css/modules/components/suspension.css

@@ -0,0 +1,124 @@
+/* ==========================================
+   SUSPENSION OVERLAY STYLES
+   Account suspension/blocking display
+   ========================================== */
+
+.suspension-overlay {
+  display: none;
+  position: fixed;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba(0, 0, 0, 0.9);
+  z-index: 20000;
+  justify-content: center;
+  align-items: center;
+  backdrop-filter: blur(8px);
+}
+
+.suspension-overlay.active {
+  display: flex;
+}
+
+.suspension-content {
+  background: var(--bp-surface);
+  border-radius: 20px;
+  width: 90%;
+  max-width: 500px;
+  padding: 40px;
+  text-align: center;
+  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
+  border: 1px solid var(--bp-danger);
+}
+
+.suspension-icon {
+  font-size: 64px;
+  margin-bottom: 20px;
+}
+
+.suspension-title {
+  font-size: 24px;
+  font-weight: 700;
+  color: var(--bp-danger);
+  margin-bottom: 16px;
+}
+
+.suspension-message {
+  font-size: 15px;
+  color: var(--bp-text-muted);
+  line-height: 1.6;
+  margin-bottom: 24px;
+}
+
+.suspension-reason {
+  background: rgba(239, 68, 68, 0.1);
+  border: 1px solid rgba(239, 68, 68, 0.3);
+  border-radius: 12px;
+  padding: 16px;
+  margin-bottom: 24px;
+}
+
+.suspension-reason-label {
+  font-size: 12px;
+  color: var(--bp-text-muted);
+  margin-bottom: 8px;
+  text-transform: uppercase;
+  letter-spacing: 0.5px;
+}
+
+.suspension-reason-text {
+  font-size: 14px;
+  color: var(--bp-text);
+}
+
+.suspension-actions {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.suspension-btn {
+  padding: 14px 24px;
+  border-radius: 10px;
+  font-size: 14px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: all 0.2s ease;
+  border: none;
+}
+
+.suspension-btn-primary {
+  background: var(--bp-btn-primary-bg);
+  color: white;
+}
+
+.suspension-btn-primary:hover {
+  background: var(--bp-btn-primary-hover);
+}
+
+.suspension-btn-secondary {
+  background: transparent;
+  border: 1px solid var(--bp-border);
+  color: var(--bp-text);
+}
+
+.suspension-btn-secondary:hover {
+  border-color: var(--bp-primary);
+  color: var(--bp-primary);
+}
+
+.suspension-countdown {
+  font-size: 12px;
+  color: var(--bp-text-muted);
+  margin-top: 16px;
+}
+
+/* Light Mode Overrides */
+[data-theme="light"] .suspension-content {
+  background: var(--bp-surface);
+}
+
+[data-theme="light"] .suspension-reason {
+  background: rgba(239, 68, 68, 0.05);
+}