refactor(frontend): the second sweep — scoped rules that no longer match their own template (#2962)

The first sweep asked "does this class token appear anywhere outside a
<style> block?". That is too generous for a `<style scoped>` rule, which can
only ever match its own template, the component's root element, or whatever
`:deep()` reaches — so a scoped rule whose name lives only in some OTHER file
is dead regardless. The server's map had this right and my local pass did
not; this closes the gap.

79 scoped classes are absent from their own file. 48 are names their own file
BUILDS — `status-${task.status}`, `pri-${p}`, `toast--${type}`,
`perm-${permission}`, `diff-${op}`, `is-${kind}` — and 12 more are Vue
transition classes. Those are the map's documented blind spot and they stay.
The remaining 19 match nothing:

- AppHeader (9, -39 lines): the whole connection-status indicator —
  .status-indicator/.status-dot/.status-text and the five colour states,
  plus @keyframes pulse-dot and status-pulse, which had no other user. Same
  Phase 7 residue as the last commit. `.btn-icon.active` goes too: `active`
  is never applied in this component (its nav uses router-link-active).
- SettingsView (6): .status-badge/.status-on/.status-off,
  .perm-granted/.perm-denied, .location-row. This view renders no child
  components at all, so nothing can inherit its scope.
- WorkspaceNoteEditor: .note-row:hover .btn-delete and .btn-suggest-tags —
  those buttons are .btn-danger-outline/.btn-ghost now.
- ProjectListView .loading-msg; SnippetEditorView .field-row.three, whose
  media-query companion keeps its live .field-row half.

Checked against child-component roots before deleting, since a child's root
element does inherit the parent's scope id — none of the 19 is one. Template
and script regions byte-identical; both style checks still pass with only
the six pre-existing reports.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

frontend/src/components/AppHeader.vue

@@ -212,43 +212,6 @@ router.afterEach(() => {
   box-shadow: 0 0 16px color-mix(in srgb, var(--fs-accent) 30%, transparent);
 }
 
-/* Status indicator */
-.status-indicator {
-  display: flex;
-  align-items: center;
-  gap: 0.3rem;
-  cursor: default;
-  padding: 0 0.25rem;
-}
-.status-dot {
-  width: 8px;
-  height: 8px;
-  border-radius: 50%;
-  flex-shrink: 0;
-}
-.status-text {
-  font-size: 0.75rem;
-  font-weight: 500;
-  color: var(--fs-text-tertiary);
-}
-/* Status dots are indicator lights, not semantic-palette buttons —
-   they want to read as vital (Moss/Warning/Error are too muted for
-   a "ready" indicator). Hardcoded bright values; the rest of the
-   system still uses the semantic tokens. */
-.status-green .status-dot  { background: #4ade80; animation: status-pulse 2.5s ease-in-out infinite; }
-.status-yellow .status-dot { background: #facc15; animation: pulse-dot 2s infinite; }
-.status-orange .status-dot { background: #f97316; }
-.status-red .status-dot    { background: #ef4444; }
-.status-gray .status-dot   { background: var(--fs-text-tertiary); animation: pulse-dot 2s infinite; }
-@keyframes pulse-dot {
-  0%, 100% { opacity: 1; }
-  50% { opacity: 0.3; }
-}
-@keyframes status-pulse {
-  0%, 100% { box-shadow: 0 0 4px rgba(74, 222, 128, 0.4); }
-  50% { box-shadow: 0 0 10px rgba(74, 222, 128, 0.6); }
-}
-
 /* Icon buttons (?, theme, gear) */
 .btn-icon {
   background: none;
@@ -263,8 +226,7 @@ router.afterEach(() => {
   align-items: center;
   justify-content: center;
 }
-.btn-icon:hover,
-.btn-icon.active {
+.btn-icon:hover {
   background: var(--fs-surface-raised);
   color: var(--fs-text-primary);
   border-color: var(--fs-accent);
@@ -382,7 +344,6 @@ router.afterEach(() => {
   .nav-center {
     display: none;
   }
-  .status-indicator,
   .btn-icon,
   .user-info {
     display: none;

frontend/src/components/WorkspaceNoteEditor.vue

@@ -471,7 +471,6 @@ defineExpose({ reload: loadProjectNotes });
   flex: 1;
 }
 
-
 .rail-search-input {
   flex: 1;
   background: transparent;
@@ -575,8 +574,6 @@ defineExpose({ reload: loadProjectNotes });
   align-items: center;
 }
 
-.note-row:hover .btn-delete { opacity: 1; }
-
 /* Editor UI */
 .panel-header {
   display: flex;
@@ -624,8 +621,6 @@ defineExpose({ reload: loadProjectNotes });
 }
 .tag-row > :first-child { flex: 1; min-width: 0; }
 
-.btn-suggest-tags { flex-shrink: 0; align-self: center; }
-
 .tag-suggestions {
   display: flex;
   flex-wrap: wrap;
@@ -653,7 +648,6 @@ defineExpose({ reload: loadProjectNotes });
   color: var(--fs-accent);
 }
 
-
 .link-suggest-strip {
   display: flex;
   align-items: center;