style(13-03): apply Prettier formatting across repo

Mechanical reformat — no logic changes. 398 files changed, 19125
insertions(+), 16457 deletions(-). Prettier 3.8.4 with .prettierrc
(singleQuote:true, semi:true, tabWidth:2, trailingComma:all,
printWidth:100). Isolated per D-13-08 for reviewability.

.planning/milestones/v1.0-phases/06-ux-polish/06-04-SUMMARY.md

@@ -34,10 +34,10 @@ metrics:
 
 ## Tasks Completed
 
-| Task | Name | Commit | Files |
-|------|------|--------|-------|
-| 1 | Add @keyframes pulse globally; remove redundant spin redefinition | `81f2678` | tokens.css, PushPermissionPrompt.tsx |
-| 2 (checkpoint) | playwright-cli — confirm spinner spins and reconnecting dot pulses | (verification only) | — |
+| Task           | Name                                                               | Commit              | Files                                |
+| -------------- | ------------------------------------------------------------------ | ------------------- | ------------------------------------ |
+| 1              | Add @keyframes pulse globally; remove redundant spin redefinition  | `81f2678`           | tokens.css, PushPermissionPrompt.tsx |
+| 2 (checkpoint) | playwright-cli — confirm spinner spins and reconnecting dot pulses | (verification only) | —                                    |
 
 ## What Was Built
 
@@ -47,6 +47,7 @@ The plan's corrected diagnosis was that `@keyframes spin` was already global in
 - **Redundant local `<style>` block** in `PushPermissionPrompt.tsx` that redefined `@keyframes spin` — harmless but incorrect; removed for hygiene.
 
 Fix (commit `81f2678`):
+
 - Added `@keyframes pulse { 0%, 100% { opacity: 1 } 50% { opacity: 0.4 } }` to `tokens.css` directly after `@keyframes spin`, matching the existing block format (no vendor prefixes, no `animation-fill-mode` inside).
 - Deleted the `<style>` block from `PushPermissionPrompt.tsx`. The inline `animation: 'spin 1s linear infinite'` style on the Loader2 element was left intact — it still resolves to the global keyframe.
 - `LiveSyncIndicator.tsx` and `SyncStateToast.tsx` were not modified; their inline animation references are correct.