refactor(services): inline ProfileService logic into AccountViewView

Removes over-engineered ProfileService and ServiceInitializationManager
classes that were only used in one place. Inlines all profile logic
directly into AccountViewView.vue to reduce complexity and improve
maintainability.

- Deletes ProfileService.ts (325 lines)
- Deletes ServiceInitializationManager.ts (207 lines)
- Inlines ProfileData interface and methods into AccountViewView
- Maintains all existing functionality while reducing code footprint

perf(logging): convert excessive info logs to debug level

Reduces console noise by converting high-frequency, low-value logging
from info to debug level across navigation, API calls, and component
lifecycle operations. Improves performance and reduces log verbosity
for normal application flow.

- Router navigation guards: info → debug
- Plan loading operations: info → debug
- User registration checks: info → debug
- Image server rate limits: info → debug
- Component lifecycle events: info → debug
- Settings loading operations: info → debug

Maintains warn/error levels for actual issues while reducing noise
from expected application behavior.

src/views/StartView.vue

@@ -203,7 +203,7 @@ export default class StartView extends Vue {
       // Load account count for display logic
       this.numAccounts = await retrieveAccountCount();
 
-      logger.info("[StartView] Component mounted", {
+      logger.debug("[StartView] Component mounted", {
         hasGivenName: !!this.givenName,
         accountCount: this.numAccounts,
         passkeysEnabled: this.PASSKEYS_ENABLED,
@@ -221,7 +221,7 @@ export default class StartView extends Vue {
    * Routes user to new identifier creation flow with seed-based approach
    */
   public onClickNewSeed() {
-    logger.info("[StartView] User selected new seed generation");
+    logger.debug("[StartView] User selected new seed generation");
     this.$router.push({ name: "new-identifier" });
   }
 
@@ -235,14 +235,14 @@ export default class StartView extends Vue {
       const keyName =
         AppString.APP_NAME + (this.givenName ? " - " + this.givenName : "");
 
-      logger.info("[StartView] Initiating passkey registration", {
+      logger.debug("[StartView] Initiating passkey registration", {
         keyName,
         hasGivenName: !!this.givenName,
       });
 
       await registerSaveAndActivatePasskey(keyName);
 
-      logger.info("[StartView] Passkey registration successful");
+      logger.debug("[StartView] Passkey registration successful");
       this.$router.push({ name: "account" });
     } catch (error) {
       logger.error("[StartView] Passkey registration failed", error);
@@ -255,7 +255,7 @@ export default class StartView extends Vue {
    * Routes user to account import flow for existing seed phrase
    */
   public onClickNo() {
-    logger.info("[StartView] User selected existing seed import");
+    logger.debug("[StartView] User selected existing seed import");
     this.$router.push({ name: "import-account" });
   }
 
@@ -264,7 +264,7 @@ export default class StartView extends Vue {
    * Routes user to address derivation flow for existing seed
    */
   public onClickDerive() {
-    logger.info("[StartView] User selected address derivation");
+    logger.debug("[StartView] User selected address derivation");
     this.$router.push({ name: "import-derive" });
   }
 }