Policies-Tab: Export/Import (Settings Catalog, Compliance, Config)

Neuer Tab "Policies" zum Sichern und Wiederherstellen von Intune-Policies.

- Backend src/PolicyIO.ps1: typ-getrieben fuer configurationPolicies
  (Settings Catalog), deviceCompliancePolicies und deviceConfigurations
- Export als JSON-Download (einzeln/Bundle) + Server-Archiv unter %APPDATA%
- Import per Datei-Upload, immer Neuanlage (nie ueberschreiben), robust fuer
  Hashtable (PS7) und PSCustomObject (PS5.1); im Read-Only-Modus ausgeblendet
- Routen in src/Api.ps1; Config-Scope DeviceManagementConfiguration.* auch
  nach Settings-Save sichergestellt
- Frontend: Tab + View, Suche/Typ-Filter/Sortierung, Auswahl, Download/Upload
- Version 0.1.25 (Start.ps1, CHANGELOG, README)
- build-local.ps1: x64-.NET-Runtime fuer wix auf ARM64-Windows + echter
  Desktop-Pfad

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

www/styles.css

@@ -4872,7 +4872,8 @@ body.read-only #btnApply,
 body.read-only .gex-add-pane,
 body.read-only .gex-tab[data-tab="add"],
 body.read-only .gex-tab[data-tab="import"],
-body.read-only #gexPaneImport {
+body.read-only #gexPaneImport,
+body.read-only .pol-write {
   display: none !important;
 }
 
@@ -5340,3 +5341,69 @@ body.read-only .app-row {
 .dev-actions-title { font-size: 11px; font-weight: 600; color: var(--muted); margin-bottom: 8px; text-transform: uppercase; letter-spacing: .04em; }
 .dev-action-btns { display: flex; flex-wrap: wrap; gap: 6px; }
 .dev-action-btn { display: inline-flex; align-items: center; gap: 5px; }
+
+/* =============================================================
+   Policies View (Export / Import)
+   ============================================================= */
+.pol-view {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+  padding: 16px 20px;
+  height: calc(100vh - var(--topbar-h, 52px) - 32px);
+  box-sizing: border-box;
+}
+.pol-toolbar {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  flex-shrink: 0;
+  flex-wrap: wrap;
+}
+.pol-toolbar .search-wrap { flex: 0 1 320px; }
+.pol-table-wrap {
+  flex: 1;
+  overflow: auto;
+  border: 1px solid var(--border);
+  border-radius: 6px;
+}
+.pol-table { width: 100%; border-collapse: collapse; font-size: 13px; }
+.pol-table thead { position: sticky; top: 0; z-index: 2; background: var(--bg2); }
+.pol-table th {
+  padding: 8px 10px;
+  text-align: left;
+  font-weight: 600;
+  font-size: 12px;
+  color: var(--text-dim, #888);
+  border-bottom: 1px solid var(--border);
+  white-space: nowrap;
+  user-select: none;
+}
+.pol-table th.sortable { cursor: pointer; }
+.pol-table th.sortable:hover { color: var(--text); background: var(--bg3, var(--hover)); }
+.pol-table td {
+  padding: 6px 10px;
+  border-bottom: 1px solid var(--border);
+  vertical-align: middle;
+}
+.pol-table tbody tr:last-child td { border-bottom: none; }
+.pol-table tbody tr:hover { background: var(--hover, rgba(255,255,255,0.03)); }
+.pol-col-check { width: 34px; text-align: center; }
+.pol-table td.pol-col-check { text-align: center; }
+.pol-table td.pol-name { font-weight: 500; max-width: 380px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.pol-type-badge {
+  display: inline-block;
+  padding: 1px 8px;
+  border-radius: var(--r-pill, 999px);
+  font-size: 11px;
+  font-weight: 600;
+  background: var(--bg3, var(--hover));
+  color: var(--text-dim, #999);
+  white-space: nowrap;
+}
+.pol-hint, .pol-empty {
+  padding: 24px 12px;
+  text-align: center;
+  color: var(--text-dim, #888);
+  font-size: 13px;
+}