Merge remote-tracking branch 'origin/master' into worktree/persist-web-theme-settings

# Conflicts:
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-theme/README.i18n.yaml
#	packages/host/apiproxy/README.i18n.yaml

packages/client/ui-theme/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write packages/client/ui-theme/README.md
-README.md: b79eac0d7777ac7af9b6a8960dc4d9797b41513d
-README.zh.md: c57ccbdb8fdfb735b3a5d0d66f3538dd01966ada
+README.md: 97761259720d247f6c1f60e06aa257cc30e8490f
+README.zh.md: 4958f86f37b53b4fcc2f1d8a8ceadeb6b827e411

packages/client/ui-theme/README.md

@@ -21,4 +21,4 @@ None; this package neither assembles nor sends a provider request.
 ## Known Limitations and Deferred Work
 
 - **Third-party themes are a surface, not a product** — registering one means overriding same-named alias variables; no validation exists that an override set is complete.
-- **The token sheets are the sole color authority** — values absent from cssdesign (for example the design's #4176E6 tab blue) are deliberately not appended; the nearest semantic token wins (arbitrated 2026-07-22).
+- **The token sheets are the sole color authority** — values absent from cssdesign (for example the design's #4176E6 tab blue) are deliberately not appended; the nearest semantic token wins (arbitrated 2026-07-22). Design-owner-approved additions are the exception and enter as a static step plus a semantic alias in the same change (`--dsw-static-blue-900` / `--dsw-alias-label-primary-bluish`, 2026-08-07).

packages/client/ui-theme/README.zh.md

@@ -21,4 +21,4 @@
 ## 已知限制与暂缓事项
 
 - **第三方主题是表层，不是产品**：注册主题意味着覆盖同名别名变量；目前不会验证一组覆盖是否完整。
-- **token 样式表是颜色值的唯一权威来源**：会有意不补入 cssdesign 中缺失的值（例如设计中的 #4176E6 标签页蓝色）；一律采用最接近的语义 token（裁定于 2026-07-22）。
+- **token 样式表是颜色值的唯一权威来源**：会有意不补入 cssdesign 中缺失的值（例如设计中的 #4176E6 标签页蓝色）；一律采用最接近的语义 token（裁定于 2026-07-22）。设计负责人批准的新增值是例外：须在同一变更中以一个 static 梯度值加一个语义 alias 的形式进入（`--dsw-static-blue-900` / `--dsw-alias-label-primary-bluish`，2026-08-07）。

packages/client/ui-theme/src/styles/design-platform.css

@@ -17,6 +17,7 @@ body {
   --dsw-static-blue-600: rgb(37, 99, 235);
   --dsw-static-blue-75: rgb(229, 240, 255);
   --dsw-static-blue-800: rgb(30, 64, 175);
+  --dsw-static-blue-900: rgb(14, 48, 116);
   --dsw-static-blue-950: rgb(23, 37, 84);
   --dsw-static-deepseek-100: rgb(228, 237, 253);
   --dsw-static-deepseek-200: rgb(211, 226, 255);
@@ -92,6 +93,7 @@ body[data-ds-dark-theme] {
   --dsw-static-blue-600: rgb(37, 99, 235);
   --dsw-static-blue-75: rgb(229, 240, 255);
   --dsw-static-blue-800: rgb(30, 64, 175);
+  --dsw-static-blue-900: rgb(14, 48, 116);
   --dsw-static-blue-950: rgb(23, 37, 84);
   --dsw-static-deepseek-100: rgb(228, 237, 253);
   --dsw-static-deepseek-200: rgb(211, 226, 255);
@@ -197,6 +199,7 @@ body {
   --dsw-alias-interactive-bg-hover: rgba(38, 49, 72, 0.06);
   --dsw-alias-label-caption: var(--dsw-static-neutral-bluish-400);
   --dsw-alias-label-dimmed: var(--dsw-static-neutral-bluish-200);
+  --dsw-alias-label-primary-bluish: var(--dsw-static-blue-900);
   --dsw-alias-label-primary-dimmed: var(--dsw-static-neutral-bluish-950);
   --dsw-alias-label-primary-foreground: var(--dsw-static-neutral-bluish-00);
   --dsw-alias-label-primary-inverted: var(--dsw-static-neutral-bluish-00);
@@ -287,6 +290,7 @@ body[data-ds-dark-theme] {
   --dsw-alias-interactive-bg-hover: rgba(255, 255, 255, 0.08);
   --dsw-alias-label-caption: var(--dsw-static-neutral-bluish-600);
   --dsw-alias-label-dimmed: var(--dsw-static-neutral-bluish-750);
+  --dsw-alias-label-primary-bluish: var(--dsw-static-neutral-bluish-50);
   --dsw-alias-label-primary-dimmed: var(--dsw-static-neutral-bluish-100);
   --dsw-alias-label-primary-foreground: var(--dsw-static-neutral-bluish-1000);
   --dsw-alias-label-primary-inverted: var(--dsw-static-neutral-bluish-800);