feat: simplify AI design for young creators

.project-docs/30-worklog/tasks/20260902-design-youth-client-7c5e3a82.md

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+# Task: Implement youth-facing AI Design experience
+
+## Identity
+
+- Task ID: 20260902-design-youth-client-7c5e3a82
+- Mode: Feature
+- Branch: codex/20260902-design-youth-client-7c5e3a82-design-youth-client
+- Worktree: D:\Datas\OthersProjects\makelore-design-youth-client-7c5e3a82
+- Base commit: 841273b43354b2237a52a7081a9fceb647ef4e3f
+- Owner: codex-root
+- Status: Ready for integration
+
+## Scope
+
+- Replace the default comprehensive AI Design form with conversation plus a compact
+  “我的创作” Creation Card projected from the canonical Current Specification.
+- Add a reviewed A/B/C field-presentation catalog, pure youth projection, contextual
+  “精细调整” controls, responsive desktop/mobile composition, and youth-facing
+  conversation/Quote/Task/result copy.
+- Reuse the existing V2 typed reducer, Quote confirmation, Task/Asset reconciliation,
+  upload and local-draft behavior; do not add another state store or API contract.
+
+## Intent And Constraints
+
+- One understandable default serves creators aged 8-16; there are no age or expert
+  modes. Advanced control is contextual progressive disclosure.
+- Conversation is the default mobile surface. Desktop gives conversation visual
+  priority and keeps the concise Creation Card visible.
+- Direct choices use existing typed semantic commands and never synthesize chat
+  turns. Readiness is derived from concrete blockers/questions, not field counts.
+- Preserve Main ownership of Works credentials and V2 transport, Chinese-only UI,
+  existing light visual language, 44 px targets, keyboard focus and reduced motion.
+- No database/DTO change, second brief/store, compatibility layer, broad redesign,
+  package, deployment, publication, push or paid generation is in scope.
+
+## Concurrent Task Gate
+
+- Task ID: `20260902-design-youth-client-7c5e3a82`
+- Mode: Feature
+- Branch/worktree: `codex/20260902-design-youth-client-7c5e3a82-design-youth-client` /
+  `D:\Datas\OthersProjects\makelore-design-youth-client-7c5e3a82`
+- Base commit: `841273b43354b2237a52a7081a9fceb647ef4e3f`
+- Ownership result: Isolated and claimed by `codex-root`.
+- Other active work: Model Tools owns a separate integration worktree and Plugin/Pi
+  files; it does not own the ImageCanvas Design surface.
+- Gate result: Passed.
+
+## Project Context Loaded
+
+- Read the startup memory set, current state, architecture, business rules, success
+  criteria, ADR-007, commitments, peer task scope, and the accepted youth
+  experience/implementation specifications.
+- The Current Specification remains the single semantic authority; Renderer drafts,
+  Task events and assistant deltas cannot become Creation Card truth.
+- The UI reference library reinforced progressive disclosure and accessibility; its
+  parallax/dark-mode direction was rejected as inconsistent with MakeLore.
+- Planning Gate result: Passed.
+
+## Outcome
+
+- Replaced the default professional field matrix with a conversation-first AI Design
+  surface and one compact “我的创作” card. The card is a pure projection of the
+  canonical Workspace Specification, Quote, Task and Asset state; the existing V2
+  reducer and typed commands remain the only write path.
+- Added an exhaustive A/B/C presentation catalog for every current Specification
+  field, one active creative choice with an additional “你帮我选” option, contextual
+  “精细调整”, and a responsive single-mounted card that becomes a mobile bottom
+  sheet at narrow widths.
+- Reworded conversation, Quote, Task, recovery and result states for creators aged
+  8–16. Compiler and Provider issue messages now cross a code-based youth-copy
+  boundary with safe unknown fallbacks, so raw English or technical messages are
+  not rendered in the youth UI.
+- Kept video story editing on stable canonical Shot identities. The drawer supports
+  the server contract of up to 24 Shots and preserves timing, camera, framing,
+  motion, focus and transition data while a creator edits only a story beat.
+- Bound transient Quote blockers to the canonical Specification revision: same-
+  revision refreshes preserve useful feedback, while a successful semantic change
+  clears stale blockers and enables a fresh Quote check. A terminal
+  `design_quote_blocked` response or event also settles its pending operation, so an
+  old Quote request cannot remain as a misleading “unknown” recovery action.
+- No database migration, public DTO/API change, compatibility layer, second semantic
+  store, Provider activation or paid generation was added.
+
+## Verification
+
+- `pnpm exec vitest run tests/unit/youth-form-projection.test.ts tests/unit/youth-creation-card.test.tsx tests/unit/youth-issue-copy.test.ts tests/unit/fine-tune-drawer.test.tsx tests/unit/image-workspace-store.test.ts tests/unit/image-canvas-page.test.tsx` — 40 passed, including terminal Quote-blocked settlement, blocked-event recovery into a revised Quote, 24-Shot preservation, and explicit deletion of a cleared Shot.
+- Broad client suite — 1802 passed and 2 skipped; two Electron binary-preparation
+  cases initially reported transient Windows `spawn EBUSY`, then their focused
+  rerun passed 3/3. The separate pressure suite passed 1/1.
+- `pnpm exec tsc --noEmit` — passed.
+- Scoped ESLint over every changed/new source and test file — passed.
+- `pnpm run build:vite` — passed; only pre-existing chunk-size and mixed static/
+  dynamic import warnings were reported.
+- `pnpm exec playwright test tests/e2e/image-workspace-v2.spec.ts` — 2 passed,
+  covering 375 px, 768 px and desktop composition plus direct edit, chat, Quote,
+  confirmation and Task flow.
+
+## Follow-ups
+
+- Run moderated usability sessions with creators aged 8–16 after integration.
+- Paid Provider activation and live paid-generation acceptance remain a separate
+  release gate.
+
+## Promotion Candidates
+
+- None. This task implements the already accepted youth Design experience and does
+  not introduce a new canonical architecture or product decision.