agent: lumotia-rebrand — frontend strings (svelte + i18n + design-system)

Phase 8 of the rebrand cascade. Every rendered string is now Lumotia;
no Magnotia surface visible in the UI.

Sweep replaced \bmagnotia\b -> lumotia and \bMagnotia\b -> Lumotia
across all .svelte / .ts / .js / .css / .html / .json (excluding
package-lock.json which regenerates, target/, build/, node_modules/).

Surfaces touched:
- src/app.css — design-token comment header and .magnotia-rh-* CSS
  resize-handle class selectors (also the consuming elements in
  components/ResizeHandles.svelte and src/routes/*/+layout.svelte).
- src/lib/i18n/locales/{en,de,es}.json — brand name in translations.
- src/lib/i18n/index.ts — header comment.
- src/lib/Sidebar.svelte and most pages under src/lib/pages/ +
  src/lib/components/ — title bars, document titles, default
  filenames (lumotia-YYYY-MM-DD.* etc), toast strings, error
  messages, dialog headers.
- src/routes/+layout.svelte, +page.svelte, viewer/, float/, preview/.
- src/app.html page <title>.
- src/lib/utils/settingsMigrations.ts — fallback toast copy.
- src/design-system/{colors_and_type.css,SKILL.md,README.md,
  ui_kits/{Sidebar.jsx,index.html}} — design-tokens, doc strings,
  preview wordmark in the kit.
- package.json — name + description.

NOT touched (deferred / immutable):
- package-lock.json — regenerates on next npm install.
- The two migration-call sites in stores reference the legacy magnotia
  keys deliberately; restored after the sweep clobbered them.
- docs/, README.md, HANDOVER.md — Phase 9 scope.

npm run check: 0 errors / 0 warnings (3958 files).
cargo test --workspace: 339 pass / 0 fail.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/pages/SettingsPage.svelte

@@ -767,7 +767,7 @@
   async function testReadAloudVoice() {
     try {
       await invoke("tts_speak", {
-        text: "This is Magnotia reading aloud.",
+        text: "This is Lumotia reading aloud.",
         rate: settings.ttsRate,
         voice: settings.ttsVoice ?? null,
       });
@@ -1155,7 +1155,7 @@
                   bind:value={settings.microphoneDevice}
                   onfocus={refreshAudioDevices}
                 >
-                  <option value="">Auto (recommended), let Magnotia pick the working mic</option>
+                  <option value="">Auto (recommended), let Lumotia pick the working mic</option>
                   {#each visibleAudioDevices as dev}
                     <option value={dev.name} disabled={dev.is_likely_monitor}>
                       {friendlyLabel(dev)}{#if dev.is_default && dev.name !== "default"} (system default){/if}{#if dev.is_likely_monitor}, speaker monitor, skip{/if}
@@ -1808,7 +1808,7 @@
               </div>
               <p class="text-[12px] text-text-secondary mt-2">
                 {settings.aiTier === "off"
-                  ? "No local LLM calls. Magnotia falls back to the existing rule-based path."
+                  ? "No local LLM calls. Lumotia falls back to the existing rule-based path."
                   : settings.aiTier === "cleanup"
                     ? "Use the local model for transcript cleanup and formatting."
                     : "Use the local model for cleanup, task extraction, and task breakdown."}
@@ -2080,8 +2080,8 @@
                    about whether autostart is registered. -->
               <Toggle
                 bind:checked={settings.launchAtLogin}
-                label="Launch Magnotia at login"
-                description="So Magnotia is already there at the start of the day. Uses your OS's standard autostart, no background tricks."
+                label="Launch Lumotia at login"
+                description="So Lumotia is already there at the start of the day. Uses your OS's standard autostart, no background tricks."
                 onChange={setLaunchAtLogin}
               />
             </div>
@@ -2116,7 +2116,7 @@
         >
           <div class="animate-fade-in">
             <p class="text-[12px] text-text-secondary mb-4">
-              Gentle, anticipatory reminders. Capped at 3 per hour. Never fires while you're looking at Magnotia.
+              Gentle, anticipatory reminders. Capped at 3 per hour. Never fires while you're looking at Lumotia.
             </p>
 
             <Toggle
@@ -2234,13 +2234,13 @@
               />
               <Toggle
                 bind:checked={settings.transcriptionPreview}
-                label="Floating preview when Magnotia is unfocused"
+                label="Floating preview when Lumotia is unfocused"
                 description="Shows a small always-on-top window with the raw transcription as you dictate, then the final formatted text. Only opens when the main window is unfocused or hidden."
               />
               <Toggle
                 bind:checked={settings.meetingAutoCapture}
                 label="Remind me when a meeting starts"
-                description="Toasts when a matching app appears in the process list. You still hit the hotkey. Magnotia never records on its own."
+                description="Toasts when a matching app appears in the process list. You still hit the hotkey. Lumotia never records on its own."
               />
               {#if settings.meetingAutoCapture}
                 <div class="ml-[50px] mt-2 mb-1 animate-fade-in">
@@ -2435,7 +2435,7 @@
               {/each}
             </div>
 
-            <p class="text-[12px] text-text-secondary mt-5">Magnotia v1.0 · Powered by whisper.cpp · Built by CORBEL Ltd</p>
+            <p class="text-[12px] text-text-secondary mt-5">Lumotia v1.0 · Powered by whisper.cpp · Built by CORBEL Ltd</p>
 
             <!-- Diagnostic report (privacy posture: local only until you share it) -->
             <div class="mt-6 pt-5 border-t border-border-subtle">