feat(transcribe): Norwegian defaults, vocabulary presets, multi-file court day queue

- Default language → nb (Bokmål); auto-detect demoted with warning note
- Default model → large-v3; VAD filter on by default
- Vocabulary prompt promoted to main form with 4 preset buttons
  (Barnerett/CPS, Rettssak/tingrett, Generell norsk, Egendefinert)
- Multi-file upload queue: drop/select multiple clips, numbered list UI
- Sequential queue processing with cumulative time_offset per clip
- Backend shifts segment timestamps so SRT/VTT covers full court day
- Merged transcript + segments across all clips for single download

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

assets/css/tools.css

@@ -940,10 +940,12 @@ p {
 
 .upload-file {
   display: flex;
-  align-items: center;
-  justify-content: center;
-  gap: 10px;
+  flex-direction: column;
+  align-items: flex-start;
+  gap: 6px;
   min-height: 48px;
+  width: 100%;
+  padding: 0.4rem 0;
 }
 
 .upload-filename {
@@ -1288,4 +1290,92 @@ p {
 }
 .prompt-textarea:focus { outline: 2px solid var(--teal); outline-offset: 1px; }
 
+/* ─── Vocabulary presets ──────────────────────────────────────────────────── */
+
+.vocab-presets {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 0.35rem;
+  margin-bottom: 0.35rem;
+}
+
+.vocab-btn {
+  font-size: 0.78rem;
+  padding: 0.2rem 0.6rem;
+  border: 1px solid var(--line);
+  border-radius: 20px;
+  background: var(--bg);
+  color: var(--ink);
+  cursor: pointer;
+  transition: background 0.15s, border-color 0.15s, color 0.15s;
+}
+
+.vocab-btn:hover {
+  background: var(--soft-teal, #e8f7f6);
+  border-color: var(--teal);
+  color: var(--teal);
+}
+
+.vocab-btn.is-active {
+  background: var(--teal);
+  border-color: var(--teal);
+  color: #fff;
+  font-weight: 600;
+}
+
+/* ─── Audio queue list ────────────────────────────────────────────────────── */
+
+.audio-queue-list {
+  list-style: none;
+  padding: 0;
+  margin: 0;
+  width: 100%;
+  text-align: left;
+}
+
+.queue-item {
+  display: flex;
+  align-items: baseline;
+  gap: 0.5rem;
+  padding: 3px 0;
+  font-size: 0.84rem;
+}
+
+.queue-num {
+  flex-shrink: 0;
+  min-width: 1.4rem;
+  font-variant-numeric: tabular-nums;
+  color: var(--muted);
+  font-size: 0.78rem;
+}
+
+.queue-item--processing .queue-num { color: var(--teal); }
+.queue-item--done .queue-num        { color: #22a06b; }
+.queue-item--error .queue-num       { color: var(--coral, #e05); }
+
+.queue-name {
+  flex: 1;
+  font-weight: 500;
+  word-break: break-all;
+  color: var(--ink);
+}
+
+.queue-item--done .queue-name   { color: var(--muted); }
+.queue-item--error .queue-name  { color: var(--coral, #e05); }
+
+.queue-size {
+  flex-shrink: 0;
+  font-size: 0.76rem;
+  color: var(--muted);
+}
+
+.audio-queue-actions {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+  margin-top: 0.5rem;
+  font-size: 0.82rem;
+}
+
 .control-hint { font-size: 0.74rem; color: var(--muted); font-weight: 400; }