auto-claude: subtask-1-1 - Add taskId field to IdeaBase type and update store

- Add optional taskId field to IdeaBase interface to store the created
  task ID when an idea is converted to a task
- Add setIdeaTaskId action to ideation store that sets the taskId and
  updates the status to 'converted' in a single operation

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

auto-claude-ui/src/renderer/stores/ideation-store.ts

@@ -27,6 +27,7 @@ interface IdeationState {
   setGenerationStatus: (status: IdeationGenerationStatus) => void;
   setConfig: (config: Partial<IdeationConfig>) => void;
   updateIdeaStatus: (ideaId: string, status: IdeationStatus) => void;
+  setIdeaTaskId: (ideaId: string, taskId: string) => void;
   dismissIdea: (ideaId: string) => void;
   dismissAllIdeas: () => void;
   clearSession: () => void;
@@ -97,6 +98,25 @@ export const useIdeationStore = create<IdeationState>((set) => ({
       };
     }),
 
+  setIdeaTaskId: (ideaId, taskId) =>
+    set((state) => {
+      if (!state.session) return state;
+
+      const updatedIdeas = state.session.ideas.map((idea) =>
+        idea.id === ideaId
+          ? { ...idea, taskId, status: 'converted' as IdeationStatus }
+          : idea
+      );
+
+      return {
+        session: {
+          ...state.session,
+          ideas: updatedIdeas,
+          updatedAt: new Date()
+        }
+      };
+    }),
+
   dismissIdea: (ideaId) =>
     set((state) => {
       if (!state.session) return state;

auto-claude-ui/src/shared/types/insights.ts

@@ -35,6 +35,7 @@ export interface IdeaBase {
   rationale: string;
   status: IdeationStatus;
   createdAt: Date;
+  taskId?: string; // ID of the created task when status is 'converted'
 }
 
 export interface CodeImprovementIdea extends IdeaBase {