[Gap-Audit] 029 SEO Editorial Assistant: technical.ts test coverage + import-bundle conflict UX + offline autosave

[TortoiseWolfe]

Summary

Editor UI shipped with most analysis logic. Testing coverage and advanced flows incomplete.

What's shipped

• src/lib/seo/ — readability, keywords, content, technical analyzers (4 modules, 2641 LOC)
• src/components/molecular/SEOAnalysisPanel/
• readability.test.ts, keywords.test.ts, content.test.ts

Gaps

• src/lib/seo/technical.ts (429 LOC) untested — overlaps with feature 033 SEO Library Tests
• Import-bundle diff preview untested
• Conflict resolution flow untested
• Offline/PWA autosave not implemented

Reference

• Spec: features/polish/029-seo-editorial-assistant/spec.md
• Related: feature 033 (test coverage gap is the same technical.ts)

[TortoiseWolfe]

Next-session primer

Goal: import-bundle conflict UX, offline/PWA autosave for the SEO editor (UI test coverage gap was closed).

Effort: medium (~half day)
Blocked on: nothing

What's already shipped

• src/lib/seo/ — 4 modules (readability, keywords, content, technical) with unit-test coverage (technical.test.ts shipped in batch 4 [Gap-Audit] 033 SEO Library Tests: write src/lib/seo/technical.test.ts #40)
• src/components/molecular/SEOAnalysisPanel/ — editor UI

Two remaining gaps

A. Import-bundle conflict UX

• Existing logic exists in src/components/molecular/SEOAnalysisPanel/ for ZIP export
• Conflict UX is what happens on import when content already exists for a slug — needs a side-by-side diff + keep/replace/merge modal
• Use the same diff component you'd build for blog conflict resolution ([Gap-Audit] 010 Unified Blog: implement offline editing + sync + conflict resolution + migration tooling #25); coordinate the two issues

B. Offline/PWA autosave

• Currently lost on tab close
• Reuse src/lib/offline-queue/base-queue.ts — add a seo-draft-adapter.ts next to payment/message/form adapters
• Save on debounced (5s) input change
• Restore on page load

Files

• src/components/molecular/SEOAnalysisPanel/ — extend with import-conflict modal
• src/components/molecular/DiffModal/ (new, 5-file) — reusable for [Gap-Audit] 010 Unified Blog: implement offline editing + sync + conflict resolution + migration tooling #25 too
• src/lib/offline-queue/seo-draft-adapter.ts (new)

Verification

• Unit tests for the new adapter
• Manual: write content, close tab, reopen — autosave should restore
• Manual: try to import a bundle whose slugs collide with existing content — modal shows diff