fix(extension): resync detected language on tab visibility

[frogGuaGuaGuaGua]

Summary

• keep each tab's last detected source language in memory inside the content script
• only sync detectedCode into shared storage when the tab becomes visible again
• prevent background tabs from overwriting the active tab's detected language state

Fixes #1281.

Testing

• pnpm exec wxt prepare
• pnpm exec eslint src/entrypoints/host.content/runtime.ts
• pnpm exec tsc --noEmit (currently fails in this checkout because of pre-existing unrelated type errors around Notebase / API contract types)

---

Summary by cubic

Resync detected language only when a tab is visible and keep a per-tab last value in memory. Prevents background tabs from overwriting the active tab’s detected language, fixing #1281.

• Bug Fixes
  • Defer writes to local:${DETECTED_CODE_STORAGE_KEY} unless document.visibilityState === "visible".
  • Resync stored value on visibilitychange when the tab becomes visible; initialize with DEFAULT_DETECTED_CODE.
  • Replace direct writes on initial load and URL changes with a syncDetectedCodeToStorage helper and clean up the visibility listener on teardown.

^{Written for commit 7cdd2eb. Summary will update on new commits.}

[changeset-bot]

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Latest commit: 7cdd2eb

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[github-actions]

Contributor trust score

40/100 — Moderate

This score estimates contributor familiarity with mengxi-ream/read-frog using public GitHub signals. It is advisory only and does not block merges automatically.

Outcome

• PR: fix(extension): resync detected language on tab visibility #1282 — fix(extension): resync detected language on tab visibility
• Author: @frogGuaGuaGuaGua
• Trust label: contrib-trust:moderate
• Maintainer review: not required
• Override label: add trust-check:skip to stop future trust automation updates

Score breakdown

Dimension	Score	Signals
Repo familiarity	21/35	commits in repo, merged PRs, reviews
Community standing	11/25	account age, followers, repo role
OSS influence	0/20	stars on owned non-fork repositories
PR track record	8/20	merge rate across resolved PRs in this repo

Signals used

• Repo commits: 6 (author commits reachable from the repository default branch)
• Repo PR history: merged 6, open 3, closed-unmerged 9
• Repo reviews: 0
• PR changed lines: 28 (+25 / -3)
• Repo permission: write
• Followers: 1
• Account age: 0 months
• Owned non-fork repos considered: max 0, total 0 (none)

Policy

• Low-score review threshold: < 30
• Auto-close: score < 20 and changed lines > 1000
• Policy version: v1.1

Updated automatically when the PR changes or when a maintainer reruns the workflow.

[cubic-dev-ai]

No issues found across 1 file