Align video progress with backend job progress

src/view/com/composer/Composer.tsx

@@ -2675,10 +2675,7 @@ function VideoUploadToolbar({state}: {state: VideoState}) {
   const processingProgress =
     state.status === 'processing' ? state.jobStatus?.progress : undefined
   const shouldRotate =
-    state.status === 'processing' &&
-    (processingProgress === undefined ||
-      processingProgress <= 0 ||
-      processingProgress >= 100)
+    state.status === 'processing' && processingProgress === undefined
   let wheelProgress = progress
 
   const rotate = useDerivedValue(() => {

src/view/com/composer/state/videoProgress.test.ts

@@ -3,16 +3,17 @@ import {advanceVideoProgress, videoProgressForPhase} from './videoProgress'
 describe('videoProgressForPhase', () => {
   it('maps each phase onto one continuous timeline', () => {
     expect(videoProgressForPhase('compressing', 0)).toBe(0)
-    expect(videoProgressForPhase('compressing', 1)).toBe(0.4)
-    expect(videoProgressForPhase('uploading', 0)).toBe(0.4)
-    expect(videoProgressForPhase('uploading', 1)).toBe(0.55)
-    expect(videoProgressForPhase('processing', 0)).toBe(0.55)
-    expect(videoProgressForPhase('processing', 1)).toBe(0.95)
+    expect(videoProgressForPhase('compressing', 1)).toBe(0.3)
+    expect(videoProgressForPhase('uploading', 0)).toBe(0.3)
+    expect(videoProgressForPhase('uploading', 1)).toBe(0.5)
+    expect(videoProgressForPhase('processing', 0)).toBe(0.5)
+    expect(videoProgressForPhase('processing', 0.5)).toBe(0.75)
+    expect(videoProgressForPhase('processing', 1)).toBe(1)
   })
 
   it('clamps invalid phase progress', () => {
-    expect(videoProgressForPhase('uploading', -1)).toBe(0.4)
-    expect(videoProgressForPhase('uploading', 2)).toBe(0.55)
+    expect(videoProgressForPhase('uploading', -1)).toBe(0.3)
+    expect(videoProgressForPhase('uploading', 2)).toBe(0.5)
   })
 })
 

src/view/com/composer/state/videoProgress.ts

@@ -1,12 +1,12 @@
 export type VideoProgressPhase = 'compressing' | 'uploading' | 'processing'
 
 // Keep progress monotonic across the full client pipeline instead of showing
-// three separate 0 -> 100 cycles. Processing stops short of complete because
-// a server-reported 100% can precede the completed blob becoming available.
+// three separate 0 -> 100 cycles. Backend processing progress covers the
+// entire server-side job, so it maps directly onto the final half.
 const PHASE_RANGES: Record<VideoProgressPhase, [number, number]> = {
-  compressing: [0, 0.4],
-  uploading: [0.4, 0.55],
-  processing: [0.55, 0.95],
+  compressing: [0, 0.3],
+  uploading: [0.3, 0.5],
+  processing: [0.5, 1],
 }
 
 export function videoProgressForPhase(