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/ContactGiftingView.vue

@@ -9,7 +9,7 @@
         <router-link
           :to="{ name: 'home' }"
           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"></fa
         ></router-link>
         Given by...
       </h1>
@@ -33,7 +33,7 @@
               @click="openDialog()"
               class="block w-full text-center text-sm uppercase bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white px-3 py-1.5 rounded-md"
             >
-              <fa icon="gift" class="fa-fw"></fa>
+              <font-awesome icon="gift" class="fa-fw"></font-awesome>
             </button>
           </span>
         </h2>
@@ -58,7 +58,7 @@
               @click="openDialog(contact)"
               class="block w-full text-center text-sm uppercase bg-gradient-to-b from-blue-400 to-blue-700 shadow-[inset_0_-1px_0_0_rgba(0,0,0,0.5)] text-white px-3 py-1.5 rounded-md"
             >
-              <fa icon="gift" class="fa-fw"></fa>
+              <font-awesome icon="gift" class="fa-fw"></font-awesome>
             </button>
           </span>
         </h2>