feat(typescript): resolve Priority 2 type safety issues across components

- Eliminate all remaining any types in Priority 2 components (activity, gifts, usage limits, QR scanning, discovery, meetings)
- Implement proper TypeScript types using existing interfaces (GiveActionClaim, EndorserRateLimits, ImageRateLimits)
- Replace any types with unknown + proper type guards for error handling
- Fix type assertions for external library integrations (QR scanning, mapping)
- Maintain backward compatibility while improving type safety

Resolves 7 Priority 2 type safety warnings, achieving 100% type safety for critical user-facing functionality.

src/components/UsageLimitsSection.vue

@@ -83,6 +83,7 @@
 <script lang="ts">
 import { Component, Vue, Prop } from "vue-facing-decorator";
 import { FontAwesomeIcon } from "@fortawesome/vue-fontawesome";
+import { EndorserRateLimits, ImageRateLimits } from "@/interfaces/limits";
 
 @Component({
   name: "UsageLimitsSection",
@@ -94,8 +95,8 @@ export default class UsageLimitsSection extends Vue {
   @Prop({ required: true }) loadingLimits!: boolean;
   @Prop({ required: true }) limitsMessage!: string;
   @Prop({ required: false }) activeDid?: string;
-  @Prop({ required: false }) endorserLimits?: any;
-  @Prop({ required: false }) imageLimits?: any;
+  @Prop({ required: false }) endorserLimits?: EndorserRateLimits;
+  @Prop({ required: false }) imageLimits?: ImageRateLimits;
   @Prop({ required: true }) onRecheckLimits!: () => void;
 
   mounted() {