feat(chat): align command, shell, and subtask UX (#444)

* feat: reload interface after skills operations

- Adds configurable delay before interface reload after skills changes
- Introduces polling to wait for application health after reload
- Updates UI to show reload message when installing or modifying skills

* feat: distinguish skills from commands in UI

- Displays skill badge for commands that are registered skills
- Prevents editing skills through command management interface
- Triggers interface reload after skill operations to reflect changes

* feat(chat): align command and subtask UX with opencode parity

Route commands/shell via parity paths, render delegated subtasks cleanly, and surface child-session permission/question prompts in parent chat.

* fix(ProjectEditDialog): improve layout consistency

* fix: update task icon and session handling in ToolPart

* feat(chat): add shell-mode input and collapse shell bridge output

Switch leading ! to shell mode UX and fold synthetic shell bridge assistant messages into the user shell bubble with inline output actions.

* fix: remove AI agent icon from file mention autocomplete

* fix: remove unused icon import from file mention component

packages/ui/src/stores/useSkillsCatalogStore.ts

@@ -13,7 +13,7 @@ import type {
   SkillsCatalogSourceResponse,
 } from '@/lib/api/types';
 
-import { useSkillsStore } from '@/stores/useSkillsStore';
+import { refreshSkillsAfterOpenCodeRestart, useSkillsStore } from '@/stores/useSkillsStore';
 import { opencodeClient } from '@/lib/opencode/client';
 
 const FALLBACK_SOURCES: SkillsCatalogSource[] = [
@@ -373,8 +373,14 @@ export const useSkillsCatalogStore = create<SkillsCatalogState>()(
             return { ok: false, error };
           }
 
-          // Refresh installed skills list.
-          void useSkillsStore.getState().loadSkills();
+          if (payload.requiresReload) {
+            await refreshSkillsAfterOpenCodeRestart({
+              message: payload.message,
+              delayMs: payload.reloadDelayMs,
+            });
+          } else {
+            void useSkillsStore.getState().loadSkills();
+          }
 
           return payload;
         } catch (error) {