feat: show learning progress in web app

.planning/STATE.md

@@ -7,7 +7,7 @@ See: `.planning/PROJECT.md` (updated 2026-04-26)
 **Core value:** The user should feel and prove that they are becoming more
 interview-ready after each short practice loop.
 
-**Current focus:** Phase 8 planning: Learning Progress View.
+**Current focus:** Phase 9 planning: Material and Asset Workspace.
 
 ## Current Decisions
 
@@ -38,10 +38,11 @@ interview-ready after each short practice loop.
 - v2 Frontend MVP milestone selected to turn the backend learning loop into a
   usable web service.
 - Phase 7 web app shell and diagnostic start UI is implemented and verified.
+- Phase 8 learning progress view is implemented and verified.
 
 ## Next Actions
 
-1. Plan and execute Phase 8: Learning Progress View.
+1. Plan and execute Phase 9: Material and Asset Workspace.
 2. Verify the production OpenAI image model identifier before real image
    generation calls.
 3. Add standardized SUMMARY frontmatter or Nyquist validation files if future
@@ -80,6 +81,9 @@ interview-ready after each short practice loop.
 - 2026-04-26: Phase 7 implementation verified with `go test ./...`, OpenSpec
   validation, root/asset HTTP smoke, and diagnostic API smoke through the
   server used by the web app.
+- 2026-04-26: Phase 8 implementation verified with `go test ./...`, OpenSpec
+  validation, app script smoke, and learner memory/readiness/next-challenge API
+  smoke after an answer.
 
 ---
 *State initialized: 2026-04-26.*