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/views/UserProfileView.vue

@@ -12,7 +12,7 @@
           @click="$router.go(-1)"
           class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
         >
-          <fa icon="chevron-left" class="fa-fw"></fa>
+          <font-awesome icon="chevron-left" class="fa-fw"></font-awesome>
         </button>
         Individual Profile
       </h1>
@@ -23,14 +23,14 @@
       class="fixed left-6 mt-16 text-center text-4xl leading-none bg-slate-400 text-white w-14 py-2.5 rounded-full"
       v-if="isLoading"
     >
-      <fa icon="spinner" class="fa-spin-pulse"></fa>
+      <font-awesome icon="spinner" class="fa-spin-pulse"></font-awesome>
     </div>
 
     <div v-else-if="profile">
       <!-- Profile Info -->
       <div class="mt-8">
         <div class="text-sm">
-          <fa icon="user" class="fa-fw text-slate-400"></fa>
+          <font-awesome icon="user" class="fa-fw text-slate-400"></font-awesome>
           {{ didInfo(profile.issuerDid, activeDid, allMyDids, allContacts) }}
         </div>
         <p v-if="profile.description" class="mt-4 text-slate-600">