refactor: distribute types from crm-types.ts to owning composables

Each composable now owns its types and exports them. Other composables
import types from the owning composable. Deleted centralized crm-types.ts.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/app/composables/useChangeReview.ts

@@ -15,7 +15,8 @@ import {
   PinsQueryDocument,
   DocumentsQueryDocument,
 } from "~~/graphql/generated";
-import type { PilotMessage, PilotChangeItem } from "~/composables/crm-types";
+
+import type { PilotMessage, PilotChangeItem } from "~/composables/usePilotChat";
 
 export function useChangeReview(opts: {
   pilotMessages: Ref<PilotMessage[]>;