feat: 接入 gpui-kit 全部 38 个官方主题预设 + 按语言拆分 locales + 0.7.3 升级

主题预设（"我全都要"）：
- gpui-app/themes/ 内嵌官方捆绑 21 个文件 36 变体 + Default Light/Dark
- theme.rs：register_bundled_themes（bootstrap 注册）/ apply_theme_preset
  （Theme::update + apply_config 整包应用）/ theme_preset_names
- settings.theme_preset 字段（serde 默认 linear）；保存/启动按预设分派，
  外观模式与跟随系统监听仅对 Linear 生效（预设自带明暗不被冲掉）
- 设置页「主题预设」下拉（Linear + 38 注册名），切换即时生效

语言包按语言分文件（用户要求）：
- locales/ui.yml → locales/en.yml + locales/zh-CN.yml
  （rust-i18n 文件名 stem 即 locale，扁平 "ns.key": "value"）
- i18n.rs 测试改为双文件键集合一致性 + 占位符强制

修复：设置对话框打开即栈溢出
- gpui-kit 0.7.0→0.7.3 无法解决；根因是 Windows 主线程 8MB 栈对
  Dialog 覆盖层内 Select 渲染的深调用链不足，注册多主题后越过阈值
  （64MB 试验栈下不复现，证实深调用链而非无限递归）
- .cargo/config.toml：Windows 主线程栈 8MB→64MB
- 注册时机移到 bootstrap（main 的 init_themes，gpui_kit::init 后、
  窗口创建前），对齐官方 story 示例的注册姿势
- 误伤修复：gpui-app/Cargo.toml 被批量编辑误删 bin.name 与
  build-dependencies 段；examples/flood.rs 误删已恢复

官方 skill 同步：npx skills add 被墙，gh-proxy 镜像克隆后手动覆盖
~/.agents/skills 与 ~/.zcode/skills 的 gpui-kit + gpui-kit-design-guides。

gpui-app/themes/spaceduck.json

@@ -0,0 +1,148 @@
+{
+  "name": "Spaceduck",
+  "author": "Guillermo Rodriguez",
+  "url": "https://github.com/pineapplegiant/spaceduck",
+  "$schema": "https://github.com/longbridge/gpui-kit/raw/refs/heads/main/.theme-schema.json",
+  "themes": [
+    {
+      "name": "Spaceduck",
+      "mode": "dark",
+      "colors": {
+        "accent.background": "#212440",
+        "accent.foreground": "#a3a49d",
+        "background": "#0F111B",
+        "border": "#272C42",
+        "foreground": "#a3a49d",
+        "input.border": "#272C42",
+        "link.active.foreground": "#089CC5",
+        "link.foreground": "#089CC5",
+        "link.hover.foreground": "#089CC5",
+        "list.active.background": "#089CC511",
+        "list.active.border": "#089CC5",
+        "list.even.background": "#161928",
+        "muted.background": "#272C4255",
+        "muted.foreground": "#4b6479",
+        "panel.background": "#003a5b",
+        "popover.background": "#0F111B",
+        "popover.foreground": "#a3a49d",
+        "primary.background": "#089CC5",
+        "primary.foreground": "#ecf0c1",
+        "scrollbar.background": "#003a5b00",
+        "scrollbar.thumb.background": "#24303a",
+        "secondary.background": "#242547",
+        "secondary.active.background": "#292b51",
+        "secondary.foreground": "#a3a49d",
+        "secondary.hover.background": "#242547",
+        "tab.active.background": "#0F111B",
+        "tab.foreground": "#838182",
+        "title_bar.background": "#141724",
+        "title_bar.border": "#272C42",
+        "base.red": "#e33400",
+        "base.green": "#5ccc96",
+        "base.blue": "#00a3cc",
+        "base.cyan": "#089CC5",
+        "base.magenta": "#C86D8C",
+        "base.magenta.light": "#C86D8C33",
+        "base.yellow": "#b89c00"
+      },
+      "highlight": {
+        "editor.foreground": "#ecf0c1",
+        "editor.background": "#0F111B",
+        "editor.active_line.background": "#1c1d39",
+        "editor.line_number": "#4b6479",
+        "editor.active_line_number": "#ecf0c1",
+        "editor.invisible": "#4b647966",
+        "conflict": "#e33400",
+        "created": "#5ccc96",
+        "deleted": "#e33400",
+        "error": "#e33400",
+        "hidden": "#4b6479",
+        "hint": "#C86D8C",
+        "ignored": "#4b6479",
+        "info": "#089CC5",
+        "modified": "#f2ce00",
+        "predictive": "#5D5945",
+        "renamed": "#089CC5",
+        "success": "#5ccc96",
+        "unreachable": "#4b6479",
+        "warning": "#f2ce00",
+        "syntax": {
+          "attribute": {
+            "color": "#f2ce00"
+          },
+          "boolean": {
+            "color": "#f2ce00"
+          },
+          "comment": {
+            "color": "#4b6479",
+            "font_style": "italic"
+          },
+          "comment.doc": {
+            "color": "#4b6479",
+            "font_style": "italic"
+          },
+          "constant": {
+            "color": "#e33400"
+          },
+          "constructor": {
+            "color": "#5ccc96"
+          },
+          "embedded": {
+            "color": "#ecf0c1"
+          },
+          "function": {
+            "color": "#089CC5"
+          },
+          "keyword": {
+            "color": "#C86D8C"
+          },
+          "link_text": {
+            "color": "#089CC5",
+            "font_style": "underline"
+          },
+          "link_uri": {
+            "color": "#089CC5",
+            "font_style": "italic"
+          },
+          "number": {
+            "color": "#f2ce00"
+          },
+          "string": {
+            "color": "#5ccc96"
+          },
+          "string.escape": {
+            "color": "#5ccc96"
+          },
+          "string.regex": {
+            "color": "#5ccc96"
+          },
+          "string.special": {
+            "color": "#f2ce00"
+          },
+          "string.special.symbol": {
+            "color": "#f2ce00"
+          },
+          "tag": {
+            "color": "#C86D8C"
+          },
+          "text.literal": {
+            "color": "#ecf0c1"
+          },
+          "title": {
+            "color": "#f2ce00",
+            "font_weight": 600
+          },
+          "type": {
+            "color": "#089CC5"
+          },
+          "property": {
+            "color": "#ecf0c1"
+          },
+          "variable.special": {
+            "color": "#C86D8C"
+          }
+        }
+      }
+    }
+  ]
+}