Move lint & typecheck to manual workflow_dispatch trigger

[Copilot]

Lint and typecheck are non-essential CI steps that don't need to run on every push/PR. Move them to manual trigger to reduce CI noise and save runner minutes.

• ci.yml: Remove Type Check (Mobile), Type Check (Docs), and Lint steps; retain only test + coverage upload on push/PR
• lint-typecheck.yml (new): Standalone workflow_dispatch-only workflow with the same lint and typecheck steps

Original prompt

非必要的工作流改为手工触发 lint typecheck

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[Copilot]

Pull request overview

This PR reduces automated CI workload by removing lint and TypeScript type-check steps from the default push/PR workflow and moving them into a separate manually triggered GitHub Actions workflow.

Changes:

• Removed mobile typecheck, docs typecheck, and ESLint steps from the main CI workflow so it runs only Jest + coverage upload on push/PR.
• Added a new workflow_dispatch-only workflow to run lint and both typecheck variants on demand.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
.github/workflows/lint-typecheck.yml	New manually triggered workflow to run TypeScript checks (mobile + docs) and ESLint.
.github/workflows/ci.yml	Simplifies push/PR CI to only run Jest coverage and upload the coverage artifact.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

This change makes lint + typecheck no longer run on push/PR, but the repo documentation still describes “Push / PR → Lint & Type Check” as part of the CI pipeline (e.g., docs/DEPLOYMENT.md). Please update the docs (and any PR checklist references to CI-enforced checks) to avoid contributors assuming these run automatically.

Suggested change

	- run: pnpm install
	- run: pnpm install
	- name: Lint
	run: pnpm lint
	- name: Typecheck
	run: pnpm typecheck

[Copilot]

After removing the Type Check/Lint steps, this workflow’s only remaining CI signal is running Jest. Consider renaming the job/workflow labels (e.g., from “Code Quality” to “Tests”) so the check name reflects what it actually does and is easier to interpret in PR status checks.