Migrate LogView.vue to PlatformServiceMixin with architectural compliance

Achieve total architectural compliance by eliminating both legacy database
utilities and direct SQL queries from LogView.vue component.

**Component Changes (LogView.vue):**
- Replace databaseUtil.memoryLogs with this.$memoryLogs
- Replace direct SQL query with this.$logs() abstraction
- Remove PlatformServiceFactory and databaseUtil imports
- Add PlatformServiceMixin to component mixins
- Reduce component from database-aware to pure presentation layer

**Mixin Enhancements (PlatformServiceMixin.ts):**
- Add $memoryLogs computed property for memory logs access
- Add $logs() method for abstracted database log retrieval
- Update TypeScript interfaces (IPlatformServiceMixin, ComponentCustomProperties)
- Enable components to access logs without SQL knowledge

**Documentation:**
- Add docs/migration-testing/TESTING_LOGVIEW.md - Quick testing guide
- Add docs/migration-testing/migration-checklist-LogView.md - Comprehensive checklist
- Document architectural compliance achievements and testing requirements

**Architectural Benefits:**
- Zero databaseUtil imports in LogView.vue
- Zero direct SQL queries in component layer
- Proper separation of concerns (View → Service → Database)
- Reusable $logs() method for other components
- Sets gold standard for future migrations

**Migration Progress:**
- Components using PlatformServiceMixin: 14/91 (15%)
- LogView.vue achieves total architectural compliance
- Reduces legacy databaseUtil imports from 52 to 51

**Testing:** Ready for testing at /logs route
**Backwards Compatible:** Yes - no functional changes to end users

src/views/LogView.vue

@@ -59,8 +59,7 @@ import { Router } from "vue-router";
 import QuickNav from "../components/QuickNav.vue";
 import TopMessage from "../components/TopMessage.vue";
 import { logger } from "../utils/logger";
-import { PlatformServiceFactory } from "../services/PlatformServiceFactory";
-import * as databaseUtil from "../db/databaseUtil";
+import { PlatformServiceMixin } from "../utils/PlatformServiceMixin";
 
 interface Log {
   date: string;
@@ -72,6 +71,7 @@ interface Log {
     QuickNav,
     TopMessage,
   },
+  mixins: [PlatformServiceMixin],
 })
 export default class LogView extends Vue {
   $router!: Router;
@@ -88,15 +88,8 @@ export default class LogView extends Vue {
   async loadLogs() {
     try {
       this.error = null; // Clear any previous errors
-      this.memoryLogs = databaseUtil.memoryLogs;
-
-      const platformService = PlatformServiceFactory.getInstance();
-      const queryResult = await platformService.dbQuery(
-        "SELECT * FROM logs ORDER BY date DESC",
-      );
-      this.logs = databaseUtil.mapQueryResultToValues(
-        queryResult,
-      ) as unknown as Log[];
+      this.memoryLogs = this.$memoryLogs;
+      this.logs = (await this.$logs()) as unknown as Log[];
     } catch (error) {
       logger.error("Error loading logs:", error);
       this.error =