feat: add WaveAudioPlayer with waveform visualization and authenticated audio fetch (#10158)

## Summary

Add a waveform-based audio player component (`WaveAudioPlayer`)
replacing the native `<audio>` element, with authenticated API fetch for
cloud audio playback.

## Changes

- **What**:
- Add `useWaveAudioPlayer` composable with waveform visualization from
audio data (Web Audio API `decodeAudioData`), playback controls, and
seek support
- Add `WaveAudioPlayer.vue` component with compact (inline waveform +
time) and expanded (full transport controls) variants
- Replace native `<audio>` in `MediaAudioTop.vue` and `ResultAudio.vue`
with `WaveAudioPlayer`
- Use `api.fetchApi()` instead of bare `fetch()` to include Firebase JWT
auth headers, fixing 401 errors in cloud environments
  - Add Storybook stories and unit tests

## Review Focus

- The audio URL is fetched via `api.fetchApi()` with auth headers,
converted to a Blob URL, then passed to the native `<audio>` element.
This avoids 401 Unauthorized in cloud environments where `/api/view`
requires authentication.
- URL-to-route extraction logic (`url.includes(apiBase)`) handles both
full API URLs and relative paths.


[screen-capture.webm](https://github.com/user-attachments/assets/44e61812-0391-4b47-a199-92927e75f8b4)

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-10158-feat-add-WaveAudioPlayer-with-waveform-visualization-and-authenticated-audio-fetch-3266d73d365081beab3fc6274c39fcd4)
by [Unito](https://www.unito.io)

---------

Co-authored-by: Amp <amp@ampcode.com>
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Alexander Brown <drjkl@comfy.org>

src/locales/en/main.json

@@ -343,9 +343,13 @@
     "frameNodes": "Frame Nodes",
     "listening": "Listening...",
     "ready": "Ready",
+    "play": "Play",
+    "pause": "Pause",
     "playPause": "Play/Pause",
     "playRecording": "Play Recording",
     "playing": "Playing",
+    "skipToStart": "Skip to Start",
+    "skipToEnd": "Skip to End",
     "stopPlayback": "Stop Playback",
     "playbackSpeed": "Playback Speed",
     "volume": "Volume",