[Yoldark34]

Draft, and it stays a draft for now. Second step of the Repair epic, #1080. This PR needs groundwork that doesn't exist yet, and it won't create it:

• the backend book search ([Discussion] One backend book search, and searches/lookups as backend jobs over SignalR #1076): its PR isn't open yet, and it won't be opened as part of this one;
• the backend tasks from [Epic] Library Import runs scans and matching as tasks, then moves them to the backend #1078, to run and follow repairs and rescans.

Built before that groundwork, this screen would have to be redone each time a piece of it lands. It's opened now so the design and its captures can be discussed.

Stacked on #1054: its first commit is #1054's (the Repair buttons). Only the last commit belongs to this PR.

Change

Issues page (under System, always in the menu; its orange count is the books with a real issue, and ignored books never count)

• GET /library/issues lists the books with no title, no ASIN, an ASIN that isn't one, or an ASIN without its region. Each row has a Repair button, and "Repair Selected Books (n)" repairs the selection.
• A book's problems can be ignored (with confirmation). A "Show ignored books (n)" switch lists them (the choice is kept in the browser). They can be un-ignored, and repairing one asks whether it stays ignored. Stored in a new table, AudiobookIssueIgnores (migration AddAudiobookIssueIgnores).
• With nothing left to repair, the page stays and one row says no issues were found (and how many ignored books are hidden).

Repair dialog: each book's current problems show in orange (GET /library/issues/{id}), and the Issues count is refreshed after a repair.

With the other PRs

• [Step][#1080] Library: a temporary "Broken books" group, with the server's reasons #1082 (temporary "Broken books" group, draft) adds the same repository method (GetAsinIdentifiersGroupedByAudiobookIdAsync); whichever goes second drops its copy. Its reason codes (missing_title, missing_asin, invalid_asin, missing_region, plus missing_author) are the ones this page uses; once both exist, this page should use [Step][#1080] Library: a temporary "Broken books" group, with the server's reasons #1082's rules on the server, so a book is broken for the same reasons in both places.

Rollback

This PR has a migration. The rollback branch is one commit that reverts the PR, keeps its migration and adds a forward DropAudiobookIssueIgnores migration, so a database that ran it moves forward to a clean schema. The current rollback/repair-books covers the old, larger #1054. It will be rebuilt on this PR before it leaves draft.

Tests

Backend: LibraryIssueServiceTests and the migration history: 3770 passed. Frontend: Issues page, issues store, and the Repair dialog's problem pills: 702 passed. dotnet format, type-check, eslint and prettier are clean.

Captures

The Issues page:

Repair from the Issues page:

Ignoring a book's issues:

Showing ignored books (this capture shows the earlier checkbox, now a switch):

Issues in the main menu, ignored books not counted:

🤖 Generated with Claude Code

[Yoldark34]

Closing this draft: the direction changed.

The Repair work moved on with more involved improvements and fixes (#1054 now uses a book card shared with Find Match, and #1086 shares Add New's search), and this page was built on the earlier design. The Issues screen is still a natural step of #1080 and will come back when its time comes, once its groundwork exists (#1076, #1078).

Keeping this branch updated and mergeable in the meantime isn't productive, so the Issues screen will be rewritten from scratch then. I'm keeping this branch locally as a reference for that rewrite.