feat: add UI to edit role default page permissions

dashboard/frontend/src/routes/Settings.svelte

@@ -140,6 +140,8 @@
   let editingUser = $state("");
   let editPages = $state([]);
   let newUsername = $state("");
+  let editingRole = $state("");
+  let editRolePages = $state([]);
 
   async function loadRbac() {
     rbacLoading = true;
@@ -153,18 +155,38 @@
     editingUser = username;
     editPages = [...pages];
     newUsername = "";
+    editingRole = "";
   }
 
   function startAdd() {
     editingUser = "__new__";
     editPages = ["dashboard"];
     newUsername = "";
+    editingRole = "";
   }
 
   function cancelEdit() {
     editingUser = "";
     editPages = [];
     newUsername = "";
+    editingRole = "";
+    editRolePages = [];
+  }
+
+  function startEditRole(role, pages) {
+    editingRole = role;
+    editRolePages = pages === "*" ? ["*"] : [...pages];
+    editingUser = "";
+  }
+
+  function toggleRolePage(p) {
+    if (p === "*") {
+      editRolePages = ["*"];
+    } else {
+      if (editRolePages.includes("*")) editRolePages = [];
+      if (editRolePages.includes(p)) editRolePages = editRolePages.filter(x => x !== p);
+      else editRolePages = [...editRolePages, p];
+    }
   }
 
   function togglePage(p) {
@@ -199,6 +221,21 @@
     }
   }
 
+  async function saveRoleDefault() {
+    rbacMsg = ""; rbacErr = "";
+    if (!editingRole) return;
+    if (!editRolePages.length) { rbacErr = "Select at least one page or '*' for all"; return; }
+    try {
+      const pages = editRolePages.includes("*") ? "*" : editRolePages;
+      await put(`/auth/rbac/roles/${encodeURIComponent(editingRole)}`, { pages });
+      rbacMsg = `Updated role default for ${editingRole}`;
+      cancelEdit();
+      await loadRbac();
+    } catch (e) {
+      rbacErr = e.body?.detail || "Failed to save role";
+    }
+  }
+
   onMount(() => {
     loadPasskeys();
     if (currentUser.role === "admin") loadRbac();
@@ -299,12 +336,31 @@
     <!-- Role Defaults -->
     <div class="mb-4">
       <p class="text-xs font-medium text-surface-500 mb-2">Role Defaults</p>
-      <div class="space-y-1.5">
+      <div class="space-y-2">
         {#each Object.entries(rbacConfig.role_defaults || {}) as [role, cfg]}
-          <div class="flex items-center gap-2 text-xs">
-            <span class="font-medium text-surface-700 dark:text-surface-300 w-16">{role}</span>
-            <span class="text-surface-400">{cfg.pages === "*" ? "All pages" : (cfg.pages || []).join(", ")}</span>
-          </div>
+          {#if editingRole === role}
+            <div class="p-3 bg-surface-50 dark:bg-surface-700 rounded-lg space-y-2">
+              <p class="text-xs font-medium text-surface-700 dark:text-surface-200">{role}</p>
+              <div class="flex flex-wrap gap-1.5">
+                <button onclick={() => toggleRolePage("*")} class="px-2 py-0.5 text-xs rounded-md transition-colors {editRolePages.includes('*') ? 'bg-primary-600 text-white' : 'bg-surface-200 dark:bg-surface-600 text-surface-500'}">* (all)</button>
+                {#each allPages as p}
+                  <button onclick={() => toggleRolePage(p)} class="px-2 py-0.5 text-xs rounded-md transition-colors {editRolePages.includes(p) ? 'bg-primary-600 text-white' : 'bg-surface-200 dark:bg-surface-600 text-surface-500'}">{p}</button>
+                {/each}
+              </div>
+              <div class="flex gap-2">
+                <button onclick={saveRoleDefault} class="px-3 py-1 text-xs font-medium text-white bg-primary-600 hover:bg-primary-700 rounded-md transition-colors">Save</button>
+                <button onclick={cancelEdit} class="px-3 py-1 text-xs font-medium text-surface-600 hover:text-surface-800 dark:text-surface-400 dark:hover:text-surface-200">Cancel</button>
+              </div>
+            </div>
+          {:else}
+            <div class="flex items-center justify-between p-2 bg-surface-50 dark:bg-surface-700 rounded-lg">
+              <div class="flex items-center gap-2 text-xs">
+                <span class="font-medium text-surface-700 dark:text-surface-300 w-16">{role}</span>
+                <span class="text-surface-400">{cfg.pages === "*" ? "All pages" : (cfg.pages || []).join(", ")}</span>
+              </div>
+              <button onclick={() => startEditRole(role, cfg.pages)} class="text-xs text-primary-500 hover:text-primary-700">Edit</button>
+            </div>
+          {/if}
         {/each}
       </div>
     </div>