feat: show learning progress in web app

.planning/phases/008-learning-progress-view/008-CONTEXT.md

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+# Phase 8 Context: Learning Progress View
+
+**Status:** Ready for execution
+**Started:** 2026-04-26
+
+## Goal
+
+Show evidence-backed learning progress in the web app after diagnostic
+practice.
+
+## Requirements
+
+- WEB-04: User can see learner memory, readiness, and next challenge after
+  answering.
+
+## Inputs
+
+- Phase 7 web app shell.
+- Existing backend endpoints:
+  - `GET /api/v1/learners/{userID}/memory`
+  - `GET /api/v1/learners/{userID}/readiness-map`
+  - `GET /api/v1/learners/{userID}/next-challenge`
+
+## UX Direction
+
+Keep progress in the right-side context column so the answer workspace remains
+centered. The user should see the loop close immediately: answer, feedback,
+memory, readiness, next challenge.
+
+## Out of Scope
+
+- Full graph visualization.
+- Historical readiness timeline.
+- Editing learner memory.

.planning/phases/008-learning-progress-view/008-PLAN.md

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+# Phase 8 Plan: Learning Progress View
+
+**Status:** Ready for execution
+**Phase Goal:** Close the practice loop with visible learning progress.
+
+## Tasks
+
+### 1. Add progress UI region
+
+- Add learner progress section to the right context pane.
+- Include manual refresh affordance.
+
+### 2. Fetch progress after answer
+
+- Fetch learner memory, readiness map, and next challenge after grading.
+- Render empty/error states when progress is unavailable.
+
+### 3. Verify
+
+- Add/update web app tests for progress asset content.
+- Run Go tests, OpenSpec validation, line-count check, and live smoke.
+
+## Out of Scope
+
+- Charts.
+- Historical progress storage.

.planning/phases/008-learning-progress-view/008-RESEARCH.md

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+# Phase 8 Research: Learning Progress View
+
+## Findings
+
+The backend already provides progress projection after answer submission. The
+frontend only needs to fetch and summarize the three endpoints after grading.
+
+Useful MVP display:
+
+- profile target role and stack
+- top concept mastery states
+- readiness percentage
+- next challenge concept, ladder level, and question
+
+## Recommendation
+
+- Refresh progress automatically after successful answer submission.
+- Add a manual refresh button for recovery.
+- Use empty state before the first answer.
+- Keep evidence labels compact so they do not overwhelm the practice surface.

.planning/phases/008-learning-progress-view/008-SUMMARY.md

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+# Phase 8 Summary
+
+**Status:** Complete
+**Completed:** 2026-04-26
+
+## Delivered
+
+- Added learning progress region to the web app right context pane.
+- Added manual progress refresh action.
+- After answer submission, the app fetches learner memory, readiness map, and
+  next challenge.
+- Rendered readiness percentage, concept mastery states, and recommended next
+  challenge.
+- Added frontend asset test coverage for progress API wiring.
+
+## Verification
+
+```powershell
+gofmt -w cmd internal
+go test ./...
+openspec validate frontend-mvp --strict
+```
+
+Additional smoke check:
+
+- Submitted a diagnostic answer, then verified learner memory, readiness, and
+  next challenge APIs returned progress consumed by the app script.
+
+## Deferred
+
+- Browser screenshot audit.
+- Charts and historical progress.
+- Editable learner memory.

.planning/phases/008-learning-progress-view/008-VERIFICATION.md

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+# Phase 8 Verification
+
+## Verdict
+
+PASS
+
+## Requirement Coverage
+
+- WEB-04: PASS. The web app can fetch and render learner memory, readiness, and
+  next challenge after an answer.
+
+## Evidence
+
+- `go test ./...` passed.
+- `openspec validate frontend-mvp --strict` passed.
+- Static app script includes the readiness API integration.
+- Live smoke confirmed memory mastery, readiness percentage, and next challenge
+  after diagnostic answer submission.
+
+## Residual Risk
+
+The UI is still verified through code and HTTP/API smoke rather than browser
+screenshots. Phase 9 should add visual/browser validation after the workspace
+surface is complete.