Add manual speaker controls

ROADMAP.md

@@ -23,6 +23,7 @@ User-facing progress for Rescript. Items are marked done when they shipped to
 - [x] One-click **Remove silences** (pauses / dead air ≥ 0.3s)
 - [x] Import your own transcript (SRT / VTT / JSON) instead of running Whisper
 - [x] Import cancel UX (no stuck selector / blocked media drop)
+- [x] Manual speaker controls (rename, change, add, move label, merge, remove)
 
 ### Transcription quality & models
 - [x] Whisper Base and Whisper Small selectable on upload

components/ExportDialog.tsx

@@ -63,6 +63,7 @@ export default function ExportDialog() {
   const mediaKind = useEditorStore((s) => s.mediaKind);
   const duration = useEditorStore((s) => s.duration);
   const words = useEditorStore((s) => s.words);
+  const speakers = useEditorStore((s) => s.speakers);
   const hasAudioTrack = useEditorStore((s) => s.audio !== null);
   const status = useEditorStore((s) => s.status);
   const setStatus = useEditorStore((s) => s.setStatus);
@@ -217,6 +218,7 @@ export default function ExportDialog() {
         downloadTranscript(words, format, baseName, {
           duration,
           cuts,
+          speakers,
         });
         setError(null);
       } catch (err) {
@@ -226,6 +228,7 @@ export default function ExportDialog() {
     [
       hasWords,
       words,
+      speakers,
       transcriptFormat,
       subtitleFormat,
       baseName,

components/ImportTranscriptOption.tsx

@@ -140,9 +140,13 @@ export default function ImportTranscriptOption() {
             setError(null);
             setSource("import"); // so the closed trigger can show progress
             try {
-              const words = await parseTranscriptFile(file);
+              const parsed = await parseTranscriptFile(file);
               if (pickGenRef.current !== gen) return;
-              setPendingTranscript({ name: file.name, words });
+              setPendingTranscript({
+                name: file.name,
+                words: parsed.words,
+                speakers: parsed.speakers,
+              });
               setSource("import");
               menu?.closeMenu();
             } catch (err) {