fix: remove unused imports and simplify boolean comparison

ui/src/i18n/lib/translate.ts

@@ -50,7 +50,7 @@ class I18nManager {
         } else {
           return;
         }
-        this.translations[locale] = module[locale.replace("-", "_")] as TranslationMap;
+        this.translations[locale] = module[locale.replace("-", "_")];
       } catch (e) {
         console.error(`Failed to load locale: ${locale}`, e);
         return;

ui/src/ui/app-render.ts

@@ -51,17 +51,13 @@ import {
   saveSkillApiKey,
   updateSkillEdit,
   updateSkillEnabled,
-  type SkillMessage,
 } from "./controllers/skills.ts";
 import { icons } from "./icons.ts";
 import {
   normalizeBasePath,
   TAB_GROUPS,
-  iconForTab,
-  pathForTab,
   subtitleForTab,
   titleForTab,
-  type Tab,
 } from "./navigation.ts";
 import { renderAgents } from "./views/agents.ts";
 import { renderChannels } from "./views/channels.ts";

ui/src/ui/views/overview.ts

@@ -86,7 +86,7 @@ export function renderOverview(props: OverviewProps) {
       return null;
     }
     const isSecureContext = typeof window !== "undefined" ? window.isSecureContext : true;
-    if (isSecureContext !== false) {
+    if (isSecureContext) {
       return null;
     }
     const lower = props.lastError.toLowerCase();