feat(clean-release): complete compliance redesign phases and polish tasks T047-T052

frontend/src/routes/dashboards/[id]/+page.svelte

@@ -85,11 +85,12 @@
 
   async function loadDashboardPage() {
     await loadDashboardDetail();
+    const effectiveDashboardRef = dashboard?.id ?? dashboardRef;
     await Promise.all([
-      loadTaskHistory(),
-      loadThumbnail(false),
+      loadTaskHistory(effectiveDashboardRef),
+      loadThumbnail(false, effectiveDashboardRef),
       loadLlmStatus(),
-      loadGitStatus(),
+      loadGitStatus(effectiveDashboardRef),
     ]);
   }
 
@@ -112,12 +113,12 @@
     }
   }
 
-  async function loadTaskHistory() {
-    if (!dashboardRef || !envId) return;
+  async function loadTaskHistory(targetDashboardRef = dashboardRef) {
+    if (!targetDashboardRef || !envId) return;
     isTaskHistoryLoading = true;
     taskHistoryError = null;
     try {
-      const response = await api.getDashboardTaskHistory(envId, dashboardRef, {
+      const response = await api.getDashboardTaskHistory(envId, targetDashboardRef, {
         limit: 30,
       });
       taskHistory = response?.items || [];
@@ -136,12 +137,12 @@
     }
   }
 
-  async function loadThumbnail(force = false) {
-    if (!dashboardRef || !envId) return;
+  async function loadThumbnail(force = false, targetDashboardRef = dashboardRef) {
+    if (!targetDashboardRef || !envId) return;
     isThumbnailLoading = true;
     thumbnailError = null;
     try {
-      const blob = await api.getDashboardThumbnail(envId, dashboardRef, {
+      const blob = await api.getDashboardThumbnail(envId, targetDashboardRef, {
         force,
       });
       releaseThumbnailUrl();
@@ -399,13 +400,13 @@
     };
   }
 
-  async function loadGitStatus() {
-    if (!gitDashboardRef) return;
+  async function loadGitStatus(targetDashboardRef = gitDashboardRef) {
+    if (!targetDashboardRef) return;
     isGitStatusLoading = true;
     gitStatusError = null;
     gitDiffPreview = "";
     try {
-      const status = await gitService.getStatus(gitDashboardRef, envId || null);
+      const status = await gitService.getStatus(targetDashboardRef, envId || null);
       gitStatus = status;
       if (status?.current_branch) {
         currentBranch = status.current_branch;