[appdevelopsk]

Draft PR #39 — code changes only, not merged or deployed

• Result-first related/recent tool navigation while retaining existing ad placements.
• Percentage calculator A/B scenarios, optional local saved draft, multilingual UI.
• Shared URL protections: default-private text inputs, sensitive input exclusions, malformed and oversized state checks, typed checkbox/radio/select/numeric restoration, stale result-link removal, Next.js history state preservation.
• Locale-safe search indexes and deduplicated recommendations.
• GA4: trusted user actions only; reset one-shot telemetry per tool; cancel delayed events on navigation.
• Latest: embedded iframe-and-attribution HTML now uses an isolated buildToolEmbedSnippet helper with entity escaping for localized titles and URL attributes, including ampersands and quotes. Added 3 Vitest regression cases in site/src/lib/tools/embed-html.test.ts.

Evidence and blockers

• GitHub readback confirmed ShareBar calls the shared HTML helper and test source is committed.
• Branch 138 commits ahead of main, 0 behind, 34 changed files; no successful statuses or reviews reported.
• Direct git ls-remote fails DNS in the available container, so full npm ci, repository TypeScript check, Vitest, production Next.js build, device/browser testing and GA4 DebugView remain unverified. GitHub Actions deliberately unused.
• Verification log: docs/PR39_VERIFICATION_2026-11-05.md.

NO-GO / keep draft

In an owner-accessible clone, run bash scripts/check-engagement-release.sh, review generated HTML on an external host page, and verify share restoration, mobile/desktop, 17 locales, ads, privacy/consent, GA4 events and client navigation. Obtain code review before merge. Owner performs deployment; no confirmed production engagement or revenue improvement.

[appdevelopsk]

PR #40 に統合してマージ済みのため閉じます。