fix(dashboard): replace hover row-actions with kebab menu, fix modal button reset and delete color

- Bug 1: hover actions covered total column; replaced with kebab dropdown in dedicated 44px column
- Bug 2: resync/delete buttons kept stale state across modal opens; reset in modal init block
- Bug 3: delete success button was green (btn-success); changed to red (btn-danger)
- Dropdown styled per DESIGN.md: warm shadow, 8px radius, dark mode tokens

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

api/app/static/css/style.css

@@ -393,19 +393,27 @@ input[type="checkbox"] {
     padding: 4px 8px;
 }
 
-/* Dashboard row hover actions */
-#dashOrdersBody tr { position: relative; }
-#dashOrdersBody tr .row-actions {
-    display: none;
-    position: absolute;
-    right: 8px;
-    top: 50%;
-    transform: translateY(-50%);
-    gap: 4px;
-    z-index: 1;
+/* Dashboard kebab dropdown */
+.kebab-dropdown .btn { color: var(--text-muted); }
+.kebab-dropdown .btn:hover { color: var(--text-secondary); }
+.kebab-dropdown .dropdown-menu {
+    box-shadow: var(--card-shadow);
+    border-radius: 8px;
+    border: 1px solid var(--border);
+    background: var(--surface);
+    font-family: var(--font-body);
+    font-size: 13px;
+    min-width: 160px;
 }
-#dashOrdersBody tr:hover .row-actions {
-    display: inline-flex;
+.kebab-dropdown .dropdown-item { font-size: 13px; padding: 6px 12px; }
+.kebab-dropdown .dropdown-item:hover { background: var(--surface-raised); }
+[data-theme="dark"] .kebab-dropdown .dropdown-menu {
+    background: var(--surface);
+    border-color: var(--border);
+    color: var(--text-primary);
+}
+[data-theme="dark"] .kebab-dropdown .dropdown-item:hover {
+    background: var(--surface-raised);
 }
 
 /* ── Forms ───────────────────────────────────────── */