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/NewIdentifierView.vue

@@ -11,7 +11,7 @@
           class="text-lg text-center px-2 py-1 absolute -left-2 -top-1"
           @click="$router.back()"
         >
-          <fa icon="chevron-left" class="fa-fw"></fa>
+          <font-awesome icon="chevron-left" class="fa-fw"></font-awesome>
         </h1>
       </div>
 
@@ -25,16 +25,16 @@
       <div />
       <div v-if="loading">
         <span class="text-xl">Creating...&nbsp;</span>
-        <fa
+        <font-awesome
           icon="spinner"
           class="fa-spin fa-spin-pulse"
           color="green"
           size="128"
-        ></fa>
+        ></font-awesome>
       </div>
       <div v-else>
         <span class="text-xl">Created!</span>
-        <fa
+        <font-awesome
           icon="burst"
           class="fa-beat px-12"
           color="green"
@@ -44,7 +44,7 @@
             --fa-animation-iteration-count: 1;
             --fa-beat-scale: 6;
           "
-        ></fa>
+        ></font-awesome>
       </div>
       <div />
     </div>