test: enhance deep link testing with real JWT examples

Changes:
- Add real JWT example for invite testing
- Add detailed JWT payload documentation
- Update test-deeplinks.sh with valid claim IDs
- Add test case for single contact invite
- Improve test descriptions and organization

This improves test coverage by using real-world JWT examples
and valid claim identifiers.

src/libs/endorserServer.ts

@@ -1,18 +1,18 @@
 /**
  * @fileoverview Endorser Server Interface and Utilities
  * @author Matthew Raymer
- * 
+ *
  * This module provides the interface and utilities for interacting with the Endorser server.
  * It handles authentication, data validation, and server communication for claims, contacts,
  * and other core functionality.
- * 
+ *
  * Key Features:
  * - Deep link URL path constants
  * - DID validation and handling
  * - Contact management utilities
  * - Server authentication
  * - Plan caching
- * 
+ *
  * @module endorserServer
  */
 
@@ -136,35 +136,35 @@ export function isEmptyOrHiddenDid(did?: string): boolean {
  * @param {Function} func - Test function to apply to strings
  * @param {any} input - Object/array to recursively test
  * @returns {boolean} True if any string passes the test function
- * 
+ *
  * @example
  * testRecursivelyOnStrings(isDid, { user: { id: "did:example:123" } })
  * // Returns: true
  */
 /**
  * Recursively tests strings within a nested object/array structure against a test function
- * 
+ *
  * This function traverses through objects and arrays to find all string values and applies
  * a test function to each string found. It handles:
  * - Direct string values
  * - Strings in objects (at any depth)
  * - Strings in arrays (at any depth)
  * - Mixed nested structures (objects containing arrays containing objects, etc)
- * 
+ *
  * @param {Function} func - Test function that takes a string and returns boolean
  * @param {any} input - Value to recursively search (can be string, object, array, or other)
  * @returns {boolean} True if any string in the structure passes the test function
- * 
+ *
  * @example
  * // Test if any string is a DID
  * const obj = {
- *   user: { 
+ *   user: {
  *     id: "did:example:123",
- *     details: ["name", "did:example:456"] 
+ *     details: ["name", "did:example:456"]
  *   }
  * };
  * testRecursivelyOnStrings(isDid, obj); // Returns: true
- * 
+ *
  * @example
  * // Test for hidden DIDs
  * const obj = {
@@ -175,12 +175,12 @@ export function isEmptyOrHiddenDid(did?: string): boolean {
  */
 function testRecursivelyOnStrings(
   func: (arg0: any) => boolean,
-  input: any
+  input: any,
 ): boolean {
   // Test direct string values
   if (Object.prototype.toString.call(input) === "[object String]") {
     return func(input);
-  } 
+  }
   // Recursively test objects and arrays
   else if (input instanceof Object) {
     if (!Array.isArray(input)) {
@@ -482,7 +482,7 @@ const planCache: LRUCache<string, PlanSummaryRecord> = new LRUCache({
  * @param {string} apiServer - API server URL
  * @param {string} [requesterDid] - Optional requester DID for private info
  * @returns {Promise<PlanSummaryRecord|undefined>} Plan data or undefined if not found
- * 
+ *
  * @throws {Error} If server request fails
  */
 export async function getPlanFromCache(