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/admin/dsms.css

@@ -0,0 +1,183 @@
+/* ==========================================
+   ADMIN PANEL - DSMS Styles
+   Decentralized Storage Management System
+   ========================================== */
+
+.dsms-subtab {
+  padding: 6px 12px;
+  border: none;
+  background: transparent;
+  color: var(--bp-text-muted);
+  cursor: pointer;
+  border-radius: 6px;
+  font-size: 12px;
+  transition: all 0.2s ease;
+}
+
+.dsms-subtab:hover {
+  background: var(--bp-border-subtle);
+  color: var(--bp-text);
+}
+
+.dsms-subtab.active {
+  background: var(--bp-primary);
+  color: white;
+}
+
+.dsms-content {
+  display: none;
+}
+
+.dsms-content.active {
+  display: block;
+}
+
+.dsms-status-card {
+  background: var(--bp-surface-elevated);
+  border: 1px solid var(--bp-border);
+  border-radius: 8px;
+  padding: 16px;
+}
+
+.dsms-status-card h4 {
+  margin: 0 0 8px 0;
+  font-size: 12px;
+  color: var(--bp-text-muted);
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+}
+
+.dsms-status-card .value {
+  font-size: 24px;
+  font-weight: 600;
+  color: var(--bp-text);
+}
+
+.dsms-status-card .value.online {
+  color: var(--bp-accent);
+}
+
+.dsms-status-card .value.offline {
+  color: var(--bp-danger);
+}
+
+.dsms-verify-success {
+  background: var(--bp-accent-soft);
+  border: 1px solid var(--bp-accent);
+  border-radius: 8px;
+  padding: 16px;
+  color: var(--bp-accent);
+}
+
+.dsms-verify-error {
+  background: rgba(239, 68, 68, 0.1);
+  border: 1px solid var(--bp-danger);
+  border-radius: 8px;
+  padding: 16px;
+  color: var(--bp-danger);
+}
+
+/* DSMS WebUI Styles */
+.dsms-webui-nav {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  padding: 10px 12px;
+  border: none;
+  background: transparent;
+  color: var(--bp-text-muted);
+  font-size: 14px;
+  border-radius: 6px;
+  cursor: pointer;
+  text-align: left;
+  width: 100%;
+  transition: all 0.2s;
+}
+
+.dsms-webui-nav:hover {
+  background: var(--bp-surface-elevated);
+  color: var(--bp-text);
+}
+
+.dsms-webui-nav.active {
+  background: var(--bp-primary-soft);
+  color: var(--bp-primary);
+  font-weight: 500;
+}
+
+.dsms-webui-section {
+  display: none;
+}
+
+.dsms-webui-section.active {
+  display: block;
+}
+
+.dsms-webui-stat-card {
+  background: var(--bp-surface-elevated);
+  border: 1px solid var(--bp-border);
+  border-radius: 8px;
+  padding: 16px;
+}
+
+.dsms-webui-stat-label {
+  font-size: 12px;
+  color: var(--bp-text-muted);
+  margin-bottom: 4px;
+}
+
+.dsms-webui-stat-value {
+  font-size: 18px;
+  font-weight: 600;
+  color: var(--bp-text);
+}
+
+.dsms-webui-stat-sub {
+  font-size: 11px;
+  color: var(--bp-text-muted);
+  margin-top: 4px;
+}
+
+.dsms-webui-upload-zone {
+  border: 2px dashed var(--bp-border);
+  border-radius: 12px;
+  padding: 48px 24px;
+  background: var(--bp-input-bg);
+  transition: all 0.2s;
+}
+
+.dsms-webui-upload-zone.dragover {
+  border-color: var(--bp-primary);
+  background: var(--bp-primary-soft);
+}
+
+.dsms-webui-file-item {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  padding: 12px 16px;
+  background: var(--bp-surface-elevated);
+  border: 1px solid var(--bp-border);
+  border-radius: 8px;
+  margin-bottom: 8px;
+}
+
+.dsms-webui-file-item .cid {
+  font-family: monospace;
+  font-size: 12px;
+  color: var(--bp-text-muted);
+  word-break: break-all;
+}
+
+/* Light Mode */
+[data-theme="light"] .dsms-status-card {
+  background: var(--bp-bg);
+}
+
+[data-theme="light"] .dsms-webui-stat-card {
+  background: var(--bp-bg);
+}
+
+[data-theme="light"] .dsms-webui-file-item {
+  background: var(--bp-bg);
+}