fix(a11y): privacy badge role/label and stronger search focus ring in light theme

src/lib/pages/SettingsPage.svelte

@@ -1070,6 +1070,8 @@
              visible while the user moves through the settings tree. -->
         <span
           class="text-[12px] text-text-secondary bg-accent-subtle rounded-full px-2.5 py-1"
+          role="status"
+          aria-label="Privacy posture: 100% local, no telemetry, no cloud"
         >100% local · no telemetry · no cloud</span>
       </div>
     </div>
@@ -1080,7 +1082,7 @@
         placeholder="Search settings"
         bind:value={settingsSearch}
         class="w-full bg-bg-input border border-border rounded-lg pl-9 pr-9 py-2 text-[13px] text-text placeholder:text-text-tertiary
-               focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_rgba(214,132,80,0.1)]"
+               focus:outline-none focus:border-accent focus:shadow-[0_0_0_3px_var(--accent-shadow-focus)]"
         aria-label="Search settings"
       />
       {#if searchActive}