Persist blob sizes (covers + chapter pages) and surface upload storage
usage to admins in two places:
- Admin System tab: total/covers/chapters totals, ratio of disk, average
image sizes, and top-5 largest mangas/chapters leaderboards, behind a
new GET /api/v1/admin/storage endpoint (separate from /admin/system so
the cheap DB aggregates aren't coupled to its 250ms CPU sample).
- Manga detail page: total chapter-content size and per-chapter size,
with an em-dash for uncrawled or not-yet-measured chapters.
Sizes are captured at write time (crawler put_stream return, uploaded
page/cover byte length) into nullable pages.size_bytes /
mangas.cover_size_bytes columns; NULL means "not yet measured", distinct
from a real 0. A one-shot, idempotent admin "Backfill sizes" action
(POST /api/v1/admin/storage/backfill) stats pre-existing blobs in
keyset-paginated, capped batches and reports more_remaining so a large
legacy library can be drained over multiple runs.
Aggregates and leaderboards treat NULL honestly (only fully-measured
entities are ranked); a dashboard banner flags unmeasured rows so partial
figures aren't read as complete. persist_pages now prunes stale page rows
on a shrinking re-crawl so totals and page_count stay consistent.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Per-user reading progress and uploader attribution.
Schema (migration 0011): `read_progress` table (one row per (user,
manga); chapter_id nullable on chapter delete) and nullable
`uploaded_by` columns on mangas + chapters with partial indexes
scoped to non-null rows.
Endpoints (all `/me/*`, auth-scoped):
- PUT `/v1/me/read-progress` upserts. FK violations + cross-manga
chapter ids both surface as 4xx (404 / 422) so the API can't be
used to write logically invalid rows.
- GET `/v1/me/read-progress` paged newest-first list.
- GET `/v1/me/read-progress/:manga_id` enriched with chapter_number
for the manga page's Continue CTA.
- DELETE `/v1/me/read-progress/:manga_id` idempotent.
- GET `/v1/me/uploads` interleaved manga + chapter uploads as a
tagged union; limit-only pagination.
Existing manga + chapter upload handlers stamp `uploaded_by`.
Frontend:
- Reader emits progress on mount + page change (debounce) and via
IntersectionObserver in continuous mode. High-water mark is seeded
from the persisted server value so re-opening a chapter doesn't
regress to page 1. Tab close survives via `sendBeacon` (fallback
`keepalive` fetch); SPA navigation flushes via regular fetch.
- Manga detail page shows "Continue reading Chapter N — page M"
above the chapters list, working even for mangas with >50
chapters.
- New `/profile/history` tab with reading history (clear-per-row,
inline error on failure) and uploads (mangas + chapters mixed
chronologically with type-aware rendering).
171 backend tests (incl. 16 history tests covering ownership, FK
race, cross-link guard, chapter SET NULL behaviour) and 97 frontend
tests + svelte-check clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
