docs(quick-260329-tk2): complete Ueben/Woerter phase instructions plan

- Add 260329-tk2-SUMMARY.md with task results
- Update STATE.md with quick task entry and session info

.planning/STATE.md

@@ -125,9 +125,10 @@ None yet.
 | # | Description | Date | Commit | Directory |
 |---|-------------|------|--------|-----------|
 | 260329-ten | Leertaste-Symbol in Entdecken-Phase erklären | 2026-03-29 | a7afe06 | [260329-ten-leertaste-symbol-in-entdecken-phase-erkl](./quick/260329-ten-leertaste-symbol-in-entdecken-phase-erkl/) |
+| 260329-tk2 | Ueben/Woerter-Phase kindgerechte Erklaerung hinzugefuegt | 2026-03-29 | 4cb5fa6 | [260329-tk2-ben-phase-kindgerechte-erkl-rung-statt-n](./quick/260329-tk2-ben-phase-kindgerechte-erkl-rung-statt-n/) |
 
 ## Session Continuity
 
 Last session: 2026-03-29T16:23:36.950Z
-Stopped at: Completed 04-04-PLAN.md
+Stopped at: Completed quick task 260329-tk2
 Resume file: None

.planning/quick/260329-tk2-ben-phase-kindgerechte-erkl-rung-statt-n/260329-tk2-SUMMARY.md

@@ -0,0 +1,54 @@
+---
+phase: quick
+plan: 260329-tk2
+subsystem: ui/lesson
+tags: [ux, companion, onboarding, child-friendly]
+one_liner: "Added 2.5-second child-friendly German companion instructions before practice and words phases in the lesson screen"
+key_files:
+  modified:
+    - src/ui/screens.ts
+decisions:
+  - "Companion text cleared before exercise starts (after delay) so it doesn't distract during actual typing"
+  - "async/await conversion matches existing discover phase pattern for consistency"
+metrics:
+  duration: 5min
+  tasks: 1
+  files: 1
+  completed: 2026-03-29
+---
+
+# Quick Task 260329-tk2: Ueben-Phase kindgerechte Erklaerung statt nichts
+
+## Summary
+
+Added child-friendly companion instructions at the start of the practice ("Ueben") and words ("Woerter") phases. Previously these phases showed no explanation, leaving a 7-year-old without guidance on what to do. Now each phase begins with a 2.5-second companion message before the exercise starts.
+
+## Tasks Completed
+
+| Task | Name | Commit | Files |
+| ---- | ---- | ------ | ----- |
+| 1 | Add companion instructions for practice and words phases | 4cb5fa6 | src/ui/screens.ts |
+
+## Changes Made
+
+**src/ui/screens.ts:**
+
+- `runPracticePhase()` converted from callback-based `Promise<void>` return to `async function`
+- Before exercise begins, shows: "Jetzt kannst du ueben! Druecke die Taste zu dem Buchstaben, der herunterfaellt."
+- `runWordsPhase()` converted from callback-based to `async function`
+- Before exercise begins, shows: "Jetzt kommen ganze Woerter! Tippe die Buchstaben nacheinander ein."
+- Both functions display companion area, wait 2500ms, then clear text before starting exercise
+- `cancelled` check after delay ensures clean abort if user navigates away during the intro
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Verification
+
+- `npx vitest run`: 85/85 tests passed
+- `npx tsc --noEmit`: No TypeScript errors
+
+## Known Stubs
+
+None.