Improve import review recovery and navigation performance

[DeusExTaco]

Summary

• Simplifies Step 3 import review while preserving the recovery, safety, mixed-folder, and story-arc workflows proven against large real-world libraries.
• Strengthens deferred-file recovery, source rechecks, issue assignment, ComicInfo/XML handling, and catalog download progress reporting.
• Adds detailed navigation timing, actionable health diagnostics, set-based Library summaries, catalog path reuse, and disposable Ethan/BigRedOne scale benchmarks.

Why

Large and messy Mylar libraries need a clearer review surface without losing the recovery safeguards built for corrupted, misplaced, duplicated, stale, and oversized files. Large collections also need measurable navigation diagnostics and fewer avoidable Library queries.

Validation

• make ci-full
• Main suite: 12,124 passed, 13 skipped, 1 xfailed; 91.20% coverage
• Accessibility: 25 passed
• Chromium E2E: 578 passed, 2 skipped
• Firefox E2E: 578 passed, 2 skipped
• Docker build, container security runtime, Grype gate, health check, and 7 smoke tests passed
• git diff --check

Notes

• Source-file safety and in-place import ownership rules remain intact.
• The branch intentionally retains detailed follow-up handling rather than hiding unresolved import work.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-27T10:32:27.305263Z	2633446	Manual request

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review" or "@codex security review".

Codex reacts with 👀 while any review is running, comments if it has suggestions, and reacts with 👍 once all reviews finish with no findings.

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 9f9d2b6438

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".

[DeusExTaco]

@codex review

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: 26334461ef

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".