- Go scraper: add PresignAvatarUploadURL/PresignAvatarURL/DeleteAvatar to
Store interface, implement on HybridStore+MinioClient, register
GET /api/presign/avatar-upload/{userId} and /api/presign/avatar/{userId}
- SvelteKit: replace direct AWS S3 SDK in minio.ts with presign calls to
the Go scraper; rewrite avatar +server.ts (POST=presign, PATCH=record key)
- iOS: rewrite uploadAvatar() as 3-step presigned PUT flow; refactor
chip components into shared ChipButton in CommonViews.swift
Replace blocking POST /api/audio with a non-blocking 202 flow: the Go
handler immediately enqueues a job in a new `audio_jobs` PocketBase
collection and returns {job_id, status}. A background goroutine runs
the actual Kokoro TTS work and updates job status (pending → generating
→ done/failed). A new GET /api/audio/status/{slug}/{n} endpoint lets
clients poll progress. The SvelteKit proxy and AudioPlayer.svelte are
updated to POST, then poll the status route every 2s until done.
