refactor: migrate interfaces to dedicated directory

Reorganizes TypeScript interfaces into a modular structure:
- Create dedicated interfaces directory with specialized files
- Split interfaces by domain (claims, common, limits, records, user)
- Update imports in endorserServer.ts to use new interface locations
- Replace 'any' types with 'unknown' for better type safety
- Add proper type imports and exports

This improves code organization and maintainability by:
- Centralizing interface definitions
- Reducing file size of endorserServer.ts
- Making interface relationships more explicit
- Improving type safety with stricter types

src/interfaces/claims-result.ts

@@ -0,0 +1,47 @@
+import { AxiosResponse } from "axios";
+import { GiverReceiverInputInfo } from "../libs/util";
+import { ErrorResult, ResultWithType } from "./common";
+
+export interface GiverOutputInfo {
+  action: string;
+  giver?: GiverReceiverInputInfo;
+  description?: string;
+  amount?: number;
+  unitCode?: string;
+}
+
+export interface ClaimResult {
+  success: { claimId: string; handleId: string };
+  error: { code: string; message: string };
+}
+
+export interface VerifiableCredential {
+  exp?: number;
+  iat: number;
+  iss: string;
+  vc: {
+    "@context": string[];
+    type: string[];
+    credentialSubject: VerifiableCredentialSubject;
+  };
+}
+
+export interface VerifiableCredentialSubject {
+  "@context": string;
+  "@type": string;
+  [key: string]: unknown;
+}
+
+export interface WorldProperties {
+  startTime?: string;
+  endTime?: string;
+}
+
+// Type for createAndSubmitClaim result
+export type CreateAndSubmitClaimResult = SuccessResult | ErrorResult;
+
+// Update SuccessResult to use ClaimResult
+export interface SuccessResult extends ResultWithType {
+  type: "success";
+  response: AxiosResponse<ClaimResult>;
+}