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/useCallAudio.ts

@@ -5,7 +5,8 @@ import {
 } from "~~/graphql/generated";
 import { useMutation } from "@vue/apollo-composable";
 import { isVoiceCaptureSupported, transcribeAudioBlob } from "~/composables/useVoiceTranscription";
-import type { CommItem } from "~/composables/crm-types";
+
+import type { CommItem } from "~/composables/useContacts";
 
 export function useCallAudio() {
   // ---------------------------------------------------------------------------