feat: redesign settings pages to match canonical flat UI patterns (#493)

* refactor(settings): new IA shell + projects section + skills catalog discoverability

* chore(settings): split providers list by scope; show user before project

* fix: navigation flow in mobile Settings

* feat: redesign settings pages to use modern elevated surface patterns

* feat: replace helper text with tooltips in settings

* ui: redesign update dialog and fix external link routing

- Restructures UpdateDialog to focus on changelog readability with a wider max-w-4xl canvas
- Highlights @username contributor mentions with theme primary color
- Strips excessive vertical padding and right-aligns compact action buttons
- Disables streamdown's internal link safety dialog in favor of direct Tauri shell routing

* feat: refactor Git identities into dedicated Git settings page

* feat: unify sidebar background styling across VS Code and web/mobile

* fix: adjust button styling and layout for mobile settings pages

* feat: add MCP settings page and sidebar

* feat: hide models in provider view (thanks to @nguyenngothuong)

* feat: add "Add new provider" option to model selector dropdown

* fix: local evroc logo + provider dropdown icons

* fix: increase width of provider menu

* fix: dark theme background color for better contrast

* feat: update @opencode-ai/sdk dependency to v1.2.10

* fix: restore session sorting to only use updated time

* fix: added settings for sessions deletion dialog

* fix: adjust padding on settings pages for better layout

* fix: standardize select dropdown height across UI

* fix: agent selector UI and notification settings

* fix: remove redundant helper text from settings pages

* fix: update UI layout for description fields

* fix: remove border-none and shadow-none from textarea classes

* fix: enable context menu on sidebar items

* feat: refactor UI controls and layout patterns across settings pages

* fix: use headerless blocks when page title already provides context

* fix: remove subtask option from command settings

* fix: refactor mcp page settings

* fix: reduce spacing in skills configuration pages

* feat: refactor voice settings

* feat: refactor settings sidebar sections

packages/ui/src/lib/opencode/client.ts

@@ -1806,7 +1806,7 @@ class OpencodeService {
     }
   }
 
-  async listCommandsWithDetails(): Promise<Array<{ name: string; description?: string; agent?: string; model?: string; template?: string; subtask?: boolean }>> {
+  async listCommandsWithDetails(): Promise<Array<{ name: string; description?: string; agent?: string; model?: string; template?: string }>> {
     try {
       const response = await this.client.command.list(
         this.currentDirectory ? { directory: this.currentDirectory } : undefined
@@ -1818,7 +1818,6 @@ class OpencodeService {
         agent: cmd.agent as string | undefined,
         model: cmd.model as string | undefined,
         template: cmd.template as string | undefined,
-        subtask: cmd.subtask as boolean | undefined
       }));
     } catch {
       return [];