feat(ui): add ProgressTracker learning dashboard

[bntvllnt]

Summary

• add a new compound ProgressTracker component family for curriculum progress dashboards
• ship overview, module, stats, and badge subcomponents with checklist-backed persistence support via persistKey
• add Storybook docs, unit coverage, and a Playwright component snapshot for the new learning UI

Validation

• pnpm -F @vllnt/ui exec vitest run src/components/progress-tracker/progress-tracker.test.tsx
• pnpm -F @vllnt/ui exec eslint src/components/index.ts src/components/progress-tracker/index.ts src/components/progress-tracker/progress-tracker.tsx src/components/progress-tracker/progress-tracker.test.tsx --max-warnings 0
• pnpm -F @vllnt/ui exec tsx scripts/verify-stories.ts
• pnpm -F @vllnt/ui exec playwright test -c playwright-ct.config.ts src/components/progress-tracker/progress-tracker.visual.tsx --update-snapshots
• pnpm -F @vllnt/ui build

Closes #19

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Project	Deployment	Actions	Updated (UTC)
storybook	Ready	Preview, Comment	Apr 25, 2026 5:49am
ui.vllnt.ai	Ready	Preview, Comment	Apr 25, 2026 5:49am

[bntvllnt]

Status

• ready for final human review
• blockers: none

Validation

• ✅ pnpm -C packages/ui exec vitest run src/components/progress-tracker/progress-tracker.test.tsx
• ✅ pnpm -C packages/ui exec eslint src/components/progress-tracker/progress-tracker.tsx src/components/progress-tracker/progress-tracker.test.tsx src/components/checklist/checklist.tsx src/components/checklist/index.ts src/components/progress-tracker/index.ts src/components/index.ts --no-warn-ignored
• ✅ pnpm -F @vllnt/ui exec tsx scripts/verify-stories.ts
• ✅ pnpm -F @vllnt/ui exec playwright test -c playwright-ct.config.ts src/components/progress-tracker/progress-tracker.visual.tsx
• ✅ pnpm -F @vllnt/ui build
• ℹ️ focused tsc --noEmit grep for touched files returned no progress-tracker hits; package-wide raw output remained too noisy/slow to use as the authoritative signal in this cron run

Claude review

• Ran on the narrowed live diff.
• No confirmed blocking finding remains on the current head.
• Claude did surface stale concerns from an earlier diff state (polling-based progress sync / locked modules still navigable), but both were manually verified fixed in the current head before this update.

Codex review

• Ran on the live diff.
• No confirmed blocking finding remains on the current head.
• Warn: packages/ui/src/components/progress-tracker/progress-tracker.mdx:15 still points install docs at https://ui.vllnt.com/r/progress-tracker.json while the current registry app routes/quick-add flow resolve under ui.vllnt.ai; treat that as follow-up doc drift unless .com is intentionally redirected.
• A second Codex warning about exporting CHECKLIST_PROGRESS_EVENT from the package root was reviewed and not accepted as a blocker; that event is intentionally kept internal to the checklist/progress-tracker integration path.

Branch / PR state

• pushed fix commit for checklist-driven progress resync and locked-module non-interactivity
• merged latest feat/storybook into this branch to clear the index.ts export conflict
• PR is now marked ready for review

Action for bntvllnt

• review PR feat(ui): add ProgressTracker learning dashboard #148 at the current head and merge if the remaining docs URL warn is acceptable for this pass; otherwise patch the MDX install URL before merge.