feat(ui): streamline chat actions and retire announcements

assets/brand/README.md

@@ -108,12 +108,6 @@ platform selection, and icon containers with
 `node --test scripts/generate-brand-assets.test.mjs`. macOS export and native
 bundling checks also run `scripts/macos-icon-bundle.test.mjs`.
 
-`source/release-letter-mascot.svg` preserves the authored character from
-`openbitfun-letter.html`. Its named body, rigid head/rod, and eye parts are used
-by the release letter's connected animation rig. The gradients belong to this
-illustration, not to the application theme. Vite bundles this source directly;
-it is independent of the application icon generator and needs no PNG export.
-
 Verification emails use the silver application mark on its black rounded-square
 background, generated at
 `src/miniapp-market-web/public/assets/openbitfun-email-app-icon.png`. The market build

design-system/packages/ui/README.md

@@ -357,7 +357,14 @@ routing, and device or session operations stay in the consuming application.
 
 `Checkbox appearance="native"` uses the visible browser checkbox, retaining its
 native focus, disabled, checked, indeterminate, and form semantics. The default
-`custom` presentation remains unchanged. Both presentations share sm/md/lg
+`custom` presentation uses `color.control.highlight.background` for checked and
+indeterminate boxes and reuses `color.control.switch.thumb` for their marks.
+This matches the Switch's filled highlight and indicator pairing: white marks
+in ordinary light/dark themes, with a dark mark on the high-contrast dark theme's
+light highlight. `color.control.highlight.content` belongs to content on a
+highlighted surface and has a dark value in ordinary themes. Select and Combobox
+instead use the highlight color for a standalone check on a neutral surface.
+Forced colors use the system Highlight/HighlightText pair. Both presentations share sm/md/lg
 sizing and the same label and description slots; native colors belong to the
 browser, with optional consumer `accent-color` styling.
 

design-system/packages/ui/src/components/Checkbox/Checkbox.meta.ts

@@ -16,5 +16,5 @@ export const checkboxMeta = {
     { name: "size", type: "sm | md | lg", defaultValue: "md" },
   ],
   states: ["default", "hover", "focus-visible", "checked", "indeterminate", "invalid", "disabled"],
-  tokens: ["color.content.primary", "color.content.muted", "color.content.disabled", "color.field.background", "color.field.border", "color.accent.default", "color.focus.ring"],
+  tokens: ["color.content.primary", "color.content.muted", "color.content.disabled", "color.field.background", "color.field.border", "color.control.highlight.background", "color.control.switch.thumb", "color.focus.ring"],
 } as const satisfies ComponentMeta;

design-system/packages/ui/src/components/Checkbox/Checkbox.module.css

@@ -59,14 +59,14 @@
     block-size: 100%;
     border: var(--openbitfun-border-width-default) solid var(--openbitfun-color-field-border);
     border-radius: var(--openbitfun-radius-sm);
-    color: var(--openbitfun-color-content-inverse);
+    color: var(--openbitfun-color-control-switch-thumb);
     background: var(--openbitfun-color-field-background);
     transition: background-color var(--openbitfun-motion-duration-fast) var(--openbitfun-motion-easing-standard), border-color var(--openbitfun-motion-duration-fast) var(--openbitfun-motion-easing-standard);
   }
 
   .input:is(:checked, :indeterminate) + .box {
-    border-color: var(--openbitfun-color-accent-default);
-    background: var(--openbitfun-color-accent-default);
+    border-color: var(--openbitfun-color-control-highlight-background);
+    background: var(--openbitfun-color-control-highlight-background);
   }
 
   .input:focus-visible + .box {
@@ -99,6 +99,6 @@
   @media (prefers-reduced-motion: reduce) { .box { transition: none; } }
   @media (forced-colors: active) {
     .box { border-color: ButtonText; }
-    .input:is(:checked, :indeterminate) + .box { border-color: Highlight; background: Highlight; }
+    .input:is(:checked, :indeterminate) + .box { border-color: Highlight; color: HighlightText; background: Highlight; }
   }
 }

docs/interactive-capabilities/README.md

@@ -1,9 +1,9 @@
 <!-- generated by scripts/generate-interactive-capabilities.mjs; do not edit -->
 # OpenBitFun 功能与设置目录 / OpenBitFun Features & Settings
 
-OpenBitFun Playbook 当前包含 **22 个功能**和 **21 个设置页**，共 **43 个**用户可理解的条目、**325 项**有源码证据的子能力。每个条目有独立 Markdown，并直接服务于说明书网站、OpenBitFun 全局搜索和 `OpenBitFunControl` 智能体工具。
+OpenBitFun Playbook 当前包含 **22 个功能**和 **21 个设置页**，共 **43 个**用户可理解的条目、**324 项**有源码证据的子能力。每个条目有独立 Markdown，并直接服务于说明书网站、OpenBitFun 全局搜索和 `OpenBitFunControl` 智能体工具。
 
-OpenBitFun Playbook currently contains **22 features**, **21 settings pages**, and **325** source-backed sub-capabilities across **43** user-facing entries. Every entry has its own Markdown page and directly powers the website, in-app global search, and the `OpenBitFunControl` agent tool.
+OpenBitFun Playbook currently contains **22 features**, **21 settings pages**, and **324** source-backed sub-capabilities across **43** user-facing entries. Every entry has its own Markdown page and directly powers the website, in-app global search, and the `OpenBitFunControl` agent tool.
 
 ## 唯一事实源 / Single source of truth
 
@@ -27,20 +27,20 @@ OpenBitFun Playbook currently contains **22 features**, **21 settings pages**, a
 - Generated per-item interaction audit: `docs/interactive-capabilities/technical/product-control-open-audit.json`
 - Generated low-level audit map: `docs/interactive-capabilities/technical/tauri-command-map.json`
 
-说明书、网站、搜索和智能体只看“功能 + 设置 + 子能力”。每项子能力都必须引用已注册 Tauri Command 或可解析的源码标记；这些证据不会进入公开目录。当前 **670** 个 Tauri 命令只用于实现覆盖审计。产品 UI 交互源码会在生成和检查时扫描并校验，但不会保存成随普通 UI 改动频繁变化的版本化快照。
+说明书、网站、搜索和智能体只看“功能 + 设置 + 子能力”。每项子能力都必须引用已注册 Tauri Command 或可解析的源码标记；这些证据不会进入公开目录。当前 **664** 个 Tauri 命令只用于实现覆盖审计。产品 UI 交互源码会在生成和检查时扫描并校验，但不会保存成随普通 UI 改动频繁变化的版本化快照。
 
-Docs, website, search, and agents see only features, settings, and documented sub-capabilities. Every sub-capability must reference a registered Tauri command or a resolvable source marker; evidence is stripped from public projections. The **670** Tauri commands remain implementation-audit evidence only. Product UI interaction sources are scanned and validated during generation and checks, but are not stored as a versioned snapshot that churns with ordinary UI changes.
+Docs, website, search, and agents see only features, settings, and documented sub-capabilities. Every sub-capability must reference a registered Tauri command or a resolvable source marker; evidence is stripped from public projections. The **664** Tauri commands remain implementation-audit evidence only. Product UI interaction sources are scanned and validated during generation and checks, but are not stored as a versioned snapshot that churns with ordinary UI changes.
 
 ## 控制边界 / Control boundary
 
-- 每个子能力都明确标记为直接控制、委托给专用智能体工具、需交互打开或不支持；“打开页面”不会再被统计成“智能体已控制”。当前覆盖：直接 **49**、委托 **62**、需交互 **214**、不支持 **0**。
+- 每个子能力都明确标记为直接控制、委托给专用智能体工具、需交互打开或不支持；“打开页面”不会再被统计成“智能体已控制”。当前覆盖：直接 **49**、委托 **62**、需交互 **213**、不支持 **0**。
 - 稳定行为声明为带 JSON 输入契约的 `operations` 或 `options`，并绑定原生产品控制 Provider；智能体不接触原始 Tauri Command。
-- `OpenBitFunControl list` 和 `search` 都返回带 `nextCursor` 的精简分页结果；目录可持续增长，不靠固定总量上限。完整目录和 325 项子能力都不会写入 system prompt。
+- `OpenBitFunControl list` 和 `search` 都返回带 `nextCursor` 的精简分页结果；目录可持续增长，不靠固定总量上限。完整目录和 324 项子能力都不会写入 system prompt。
 - 目录发现与契约读取不依赖 React 或可见窗口。普通配置型 option 统一由 Product Assembly 的共享 ConfigService 执行器读、写并回读，因此 Desktop、CLI 与 Headless 表面走同一份实现；只有宿主原生 operation/provider option 和界面导航按表面注册适配器，缺失时必须明确返回不可用，禁止静默回退本机。只读智能体只能发现和读取目录。
 
-- Every documented item is classified as direct control, delegated Agent control, interactive opening, or unsupported; opening a page is never counted as direct control. Current coverage is **49 direct**, **62 delegated**, **214 interactive**, and **0 unsupported**.
+- Every documented item is classified as direct control, delegated Agent control, interactive opening, or unsupported; opening a page is never counted as direct control. Current coverage is **49 direct**, **62 delegated**, **213 interactive**, and **0 unsupported**.
 - Stable behavior becomes a typed `operation` or `option` with a JSON input contract and a native product-control provider. Agents never receive raw Tauri commands.
-- `OpenBitFunControl list` and `search` return compact pages with a `nextCursor`; the catalog can grow without a fixed total-size ceiling. Neither the full catalog nor its 325 documented items enters the system prompt.
+- `OpenBitFunControl list` and `search` return compact pages with a `nextCursor`; the catalog can grow without a fixed total-size ceiling. Neither the full catalog nor its 324 documented items enters the system prompt.
 - Discovery and contract lookup do not depend on React or a visible window. Ordinary config-backed options are read, written, and read back by one Product Assembly ConfigService executor shared by Desktop, CLI, and headless surfaces. Only host-native operations/provider options and presentation routes install surface adapters; missing adapters return explicit unavailability without local fallback. Read-only agents may only discover and inspect entries.
 
 ## 防腐化门禁 / Anti-drift gates