Add CRUD todo demo app

[coderabbitai]

Summary

• Add a Vite + React + TypeScript CRUD todo list demo app.
• Include create, read/filter, update, complete/uncomplete, delete, clear-completed, and localStorage persistence.
• Add focused Vitest + Testing Library coverage for the main CRUD flows.

Review

• Reviewed state transitions for add/edit/toggle/delete/clear-completed flows.
• Reviewed accessible labels for form controls, filters, checkboxes, and item actions.
• Reviewed dependency placement and generated lockfile.

Verification

• npm run typecheck
• npm test
• npm run build
• npm audit --audit-level=high
• git diff --check

Notes

• The repository was empty, so main was initialized with an empty commit to provide a PR base.

Initiative Context

• Initiated by: <@U0B14H53JBE>
• Source thread: https://slack.com/app_redirect?channel=D0B1HL5UX46&cid=D0B1HL5UX46&message_ts=1778100914.206979

Final Prompt

create a CRUD todo list inside of coderabbit demo repo inside of project name. after you created it, run a full review and send me a link to the PR

Final Plan

Opened PR: #2

Review complete: no blocking issues found. Verified with npm run typecheck, npm test, npm run build, npm audit --audit-level=high, and git diff --check.

Note: the repo was empty, so I initialized main with an empty commit to create a PR base. Demo server is running at http://127.0.0.1:5173.

Change digest:

• ➕ src/App.tsx +253/-0: CRUD todo app with filters and localStorage
• ➕ src/App.test.tsx +76/-0: CRUD flow coverage
• ➕ src/styles.css +265/-0: responsive app styling
• ➕ package.json, package-lock.json, Vite/TS config, README, entry files: +3248/-0

[coderabbitai]

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[galvicrt]

test