feat(tui): personal TUI rework, integrating upstream model reasoning-effort selection

Consolidates the personal dsh-tui customizations (module split into
components/session/extension, prompt template + running-glyph indicator,
copyable transcript, tool-card headers, timing placement, XML tool output,
status/footer rework) and ports upstream's model reasoning-effort selector
(Shift+Tab effort cycling, effort-aware /model, footer, and /status) onto
the personal module layout.

packages/sdk/helper/src/features/builtin/app.ts

@@ -18,6 +18,7 @@ import {
 } from '../feature.ts'
 import { ProjectContribution, type ProjectResource } from '../resources.ts'
 import {
+  cordisConfigEntry,
   npmCordisConfigEntry,
   optionalString,
   ownedTextFile,
@@ -86,6 +87,10 @@ class AppOption extends FeatureOption {
             id: 'user-interaction',
             name: '@deepseek-ai/dsh-user-interaction',
           }),
+          cordisConfigEntry(ID, {
+            id: 'tui-prompt',
+            name: '@deepseek-ai/dsh-tui/prompt',
+          }),
           ...npmCordisConfigEntry(ID, {
             id: 'tui',
             name: '@deepseek-ai/dsh-tui',