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/IdentitySwitcherView.vue

@@ -8,7 +8,7 @@
         <router-link
           :to="{ name: 'account' }"
           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>
         </router-link>
 
         Switch Identity
@@ -22,7 +22,7 @@
       v-if="activeDid && !activeDidInIdentities"
       class="block bg-slate-100 rounded-md flex items-center px-4 py-3 mb-4"
     >
-      <fa icon="circle-check" class="fa-fw text-red-600 text-xl mr-3"></fa>
+      <font-awesome icon="circle-check" class="fa-fw text-red-600 text-xl mr-3"></font-awesome>
       <div class="text-sm text-slate-500">
         <div class="overflow-hidden truncate">
           <b>ID:</b> <code>{{ activeDid }}</code>
@@ -45,12 +45,12 @@
             class="flex flex-grow items-center bg-slate-100 rounded-md px-4 py-3 mb-2 truncate cursor-pointer"
             @click="switchAccount(ident.did)"
           >
-            <fa
+            <font-awesome
               v-if="ident.did === activeDid"
               icon="circle-check"
               class="fa-fw text-blue-600 text-xl mr-3"
             />
-            <fa
+            <font-awesome
               v-else
               icon="circle"
               class="fa-fw text-slate-400 text-xl mr-3"
@@ -62,13 +62,13 @@
             </span>
           </div>
           <div>
-            <fa
+            <font-awesome
               v-if="ident.did === activeDid"
               icon="trash-can"
               class="text-slate-400 text-xl ml-2 mr-2 cursor-pointer"
               @click="notifyCannotDelete()"
             />
-            <fa
+            <font-awesome
               v-else
               icon="trash-can"
               class="text-red-600 text-xl ml-2 mr-2 cursor-pointer"