Refactor EOI management into dedicated component

Extract EOI links and generation functionality from InterestDetailsModal
into a new reusable EOISection component. This improves code organization
and maintainability while adding debounce support for form submissions.

- Create new EOISection.vue component for EOI management
- Remove inline EOI links section from InterestDetailsModal
- Add debounce utility for form submission handling
- Update email generation and thread fetching logic
- Update related types and utilities

utils/types.ts

@@ -119,6 +119,14 @@ export interface Interest {
   "Contract Sent Status": ContractSentStatus;
   "Deposit 10% Status": Deposit10PercentStatus;
   "Contract Status": ContractStatus;
+  // EOI Link fields
+  "EOI Client Link"?: string;
+  "EOI David Link"?: string;
+  "EOI Oscar Link"?: string;
+  // New signature link fields
+  "Signature Link Client"?: string;
+  "Signature Link CC"?: string;
+  "Signature Link Developer"?: string;
 }
 
 export interface InterestsResponse {