feat(desktop): polish desktop shell and shared WebUI surfaces (#4195)

* feat(desktop): add native host scaffold

* feat(webui): track turns and usage in gateway

* feat(webui): polish desktop chat experience

* feat(apps): add ArcGIS and Joplin logos

* feat(desktop): polish shell and shared surfaces

* fix(webui): avoid preview chips for glob references

* test: align CI expectations for token fallback

* feat(webui): preview prompt rail entries

* feat(webui): add prompt navigator drawer

* style(webui): refine prompt navigator placement

* style(webui): align prompt navigator with header actions

* style(webui): simplify prompt navigator header

* refactor(webui): clean thread resource refresh

* feat(desktop): add native reply notifications

* fix(webui): preserve desktop restart and replay state

* fix(desktop): harden gateway proxy startup

* fix(web): fall back when readability is unavailable

* fix(desktop): hide window instead of closing on macos

* fix(webui): unify desktop header actions

* fix(webui): simplify prompt history rows

* fix(desktop): log notification delivery failures

* chore(desktop): clean source package artifacts

* fix(cron): support one-time relative reminders

* fix(webui): reveal scroll button in place

* Revert "fix(cron): support one-time relative reminders"

This reverts commit 4c4661da120a3c7283e0768412bae48604e7390b.

* refactor(webui): extract token usage heatmap

* docs(desktop): clarify contributor guides

---------

Co-authored-by: chengyongru <2755839590@qq.com>

webui/src/lib/api.ts

@@ -1,6 +1,7 @@
 import type {
   ChatSummary,
   CliAppsPayload,
+  FilePreviewPayload,
   ImageGenerationSettingsUpdate,
   McpPresetsPayload,
   ModelConfigurationCreate,
@@ -8,9 +9,12 @@ import type {
   NetworkSafetySettingsUpdate,
   ProviderModelsPayload,
   ProviderSettingsUpdate,
+  SessionAutomationsPayload,
   SettingsPayload,
   SettingsUpdate,
   SidebarStatePayload,
+  SkillDetail,
+  SkillsPayload,
   SlashCommand,
   WebSearchSettingsUpdate,
   WorkspacesPayload,
@@ -134,6 +138,60 @@ export async function fetchWebuiThread(
   return (await res.json()) as WebuiThreadPersistedPayload;
 }
 
+export async function fetchFilePreview(
+  token: string,
+  key: string,
+  path: string,
+  base: string = "",
+): Promise<FilePreviewPayload> {
+  const query = new URLSearchParams();
+  query.set("path", path);
+  return request<FilePreviewPayload>(
+    `${base}/api/sessions/${encodeURIComponent(key)}/file-preview?${query}`,
+    token,
+    undefined,
+    API_READ_TIMEOUT_MS,
+  );
+}
+
+export async function fetchSessionAutomations(
+  token: string,
+  key: string,
+  base: string = "",
+): Promise<SessionAutomationsPayload> {
+  return request<SessionAutomationsPayload>(
+    `${base}/api/sessions/${encodeURIComponent(key)}/automations`,
+    token,
+    undefined,
+    API_READ_TIMEOUT_MS,
+  );
+}
+
+export async function fetchSkills(
+  token: string,
+  base: string = "",
+): Promise<SkillsPayload> {
+  return request<SkillsPayload>(
+    `${base}/api/webui/skills`,
+    token,
+    undefined,
+    API_READ_TIMEOUT_MS,
+  );
+}
+
+export async function fetchSkillDetail(
+  token: string,
+  name: string,
+  base: string = "",
+): Promise<SkillDetail> {
+  return request<SkillDetail>(
+    `${base}/api/webui/skills/${encodeURIComponent(name)}`,
+    token,
+    undefined,
+    API_READ_TIMEOUT_MS,
+  );
+}
+
 export async function deleteSession(
   token: string,
   key: string,
@@ -158,6 +216,18 @@ export async function fetchSettings(
   );
 }
 
+export async function fetchSettingsUsage(
+  token: string,
+  base: string = "",
+): Promise<NonNullable<SettingsPayload["usage"]>> {
+  return request<NonNullable<SettingsPayload["usage"]>>(
+    `${base}/api/settings/usage`,
+    token,
+    undefined,
+    API_READ_TIMEOUT_MS,
+  );
+}
+
 export async function fetchWorkspaces(
   token: string,
   base: string = "",