Increase VectorEngine timeouts and add image UI

Add VectorEngine image generation config and raise request timeouts (env + scripts) from 180000 to 1000000ms. Introduce a reusable CreativeImageInputPanel component with tests and wire up mobile keyboard-focus helpers; update generation views and related tests (CustomWorldGenerationView, BarkBattle editor, Match3D, Puzzle flows). Improve API error handling / VectorEngine request guidance (packages/shared http.ts and docs), and apply multiple backend/frontend fixes for puzzle/match3d/prompt handling. Also include extensive docs and decision-log updates describing UI/UX decisions and verification steps.

docs/technical/ASSET_GENERATION_POINTS_CONSUMPTION_2026-04-27.md

@@ -45,6 +45,8 @@
 
 所有前端可见且会消耗泥点的按钮，点击后必须先弹出独立确认面板，面板标题使用 `确认消耗泥点`，正文只展示本次消耗数量，例如 `消耗 2 泥点`。用户点击 `确定` 后才允许调用后端扣费动作；点击 `取消` 或关闭面板不得触发接口。
 
+2026-05-14 补充：创作页入口点击确认后，前端必须先刷新 `/api/profile/dashboard` 钱包余额；余额大于等于本次消耗时才允许创建玩法 session / 草稿，余额不足时停留在创作页并展示不足提示。该预检不替代后端扣费原子校验，只用于避免余额明显不足时先生成半成品草稿。
+
 2026-05-14 当前已覆盖的草稿页入口包括：
 
 - 拼图入口 `AI重绘=true` 的 `生成拼图游戏草稿`：`2` 泥点；`AI重绘=false` 直接使用上传图，不显示泥点确认。