v0.2 Phase 7.2: FilesPage — wrapper sweep

Migrated FilesPage chrome to the new grammar; the drop-zone affordance
and transcript textarea (the page's identity surfaces) stay verbatim.

  - Card import → LumotiaCard
  - EmptyState import → LumotiaEmptyState
  - "Browse Files" filled button → LumotiaButton variant=primary size=lg
  - Bottom "Copy" / "Export" toolbar → LumotiaButton variant=tertiary
  - Custom export dropdown → LumotiaMenu (Bits UI DropdownMenu)
  - Inline danger error → LumotiaNotice tone=danger
  - Custom progress bar → LumotiaProgress

Banks the LumotiaField + LumotiaNotice patterns the plan called out;
Field stays on the textarea (transcript surface is intentionally
naked inside the card per brand spec).

Per-page gate: npm run check (0/0/5704 files). Vitest / browser-mode /
e2e baselines unchanged (no behaviour change to the smoke surface).

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

src/lib/pages/FilesPage.svelte

@@ -5,8 +5,12 @@
   import { listen } from "@tauri-apps/api/event";
   import { settings, addToHistory } from "$lib/stores/page.svelte.js";
   import { profilesStore } from "$lib/stores/profiles.svelte.ts";
-  import Card from "$lib/components/Card.svelte";
-  import EmptyState from "$lib/components/EmptyState.svelte";
+  import LumotiaCard from "$lib/ui/LumotiaCard.svelte";
+  import LumotiaEmptyState from "$lib/ui/LumotiaEmptyState.svelte";
+  import LumotiaButton from "$lib/ui/LumotiaButton.svelte";
+  import LumotiaNotice from "$lib/ui/LumotiaNotice.svelte";
+  import LumotiaProgress from "$lib/ui/LumotiaProgress.svelte";
+  import LumotiaMenu from "$lib/ui/LumotiaMenu.svelte";
   import { exportTranscript } from "$lib/utils/export.js";
   import { hasTauriRuntime } from "$lib/utils/runtime";
   import { toasts } from "$lib/stores/toasts.svelte.js";
@@ -190,7 +194,7 @@
       aria-label="Audio file drop zone"
     >
       {#if !fileTranscript && !transcribing}
-        <EmptyState
+        <LumotiaEmptyState
           icon={Upload}
           message="Drop an audio file or click to browse"
         />
@@ -210,14 +214,9 @@
 
   <!-- Browse buttons + progress -->
   <div class="flex items-center gap-2 px-7 pb-3">
-    <button
-      class="btn-lg rounded-lg font-medium btn-filled-text bg-accent hover:bg-accent-hover
-             shadow-[var(--shadow-accent-raised)]"
-      onclick={handleBrowse}
-      disabled={transcribing}
-    >
+    <LumotiaButton variant="primary" size="lg" disabled={transcribing} onclick={handleBrowse}>
       Browse Files
-    </button>
+    </LumotiaButton>
     <div class="flex-1"></div>
     {#if progressText}
       <span class="text-[12px] text-text-secondary animate-fade-in">{progressText}</span>
@@ -227,21 +226,14 @@
   <!-- Error -->
   {#if error}
     <div class="px-7 pb-2 animate-fade-in">
-      <div class="px-4 py-2 rounded-lg bg-danger/10 border border-danger/20 text-[12px] text-danger">
-        {error}
-      </div>
+      <LumotiaNotice tone="danger">{error}</LumotiaNotice>
     </div>
   {/if}
 
   <!-- Progress bar -->
   {#if progress > 0}
     <div class="px-7 pb-3 animate-fade-in">
-      <div class="h-[3px] bg-bg-elevated rounded-full overflow-hidden">
-        <div
-          class="h-full bg-accent rounded-full shadow-[var(--shadow-accent-glow)]"
-          style="width: {progress}%; transition-duration: var(--duration-ui)"
-        ></div>
-      </div>
+      <LumotiaProgress value={progress} max={100} ariaLabel="Transcription progress" />
       {#if fileName}
         <p class="text-[12px] text-text-secondary mt-1.5">{fileName}</p>
       {/if}
@@ -250,7 +242,7 @@
 
   <!-- File transcript -->
   <div class="flex-1 px-7 pb-3 min-h-0">
-    <Card classes="h-full flex flex-col">
+    <LumotiaCard classes="h-full flex flex-col">
       <textarea
         class="font-transcript flex-1 w-full bg-transparent text-text p-6
                resize-none placeholder:text-text-tertiary"
@@ -260,27 +252,26 @@
         aria-label="File transcript"
         aria-live="polite"
       ></textarea>
-    </Card>
+    </LumotiaCard>
   </div>
 
   <!-- Bottom actions -->
-  <div class="flex gap-0.5 px-7 pb-4">
-    <button class="btn-md rounded-lg text-text-secondary hover:bg-hover hover:text-text" onclick={copyAll}>Copy</button>
-    <div class="relative">
-      <button
-        class="btn-md rounded-lg text-text-secondary hover:bg-hover hover:text-text"
-        onclick={() => showExportMenu = !showExportMenu}
-      >Export</button>
-      {#if showExportMenu}
-        <div class="absolute left-0 bottom-full mb-1 bg-bg-card border border-border rounded-lg shadow-lg py-1 z-10 animate-fade-in min-w-[120px]">
-          {#each [["txt", "Plain Text"], ["md", "Markdown"], ["csv", "CSV"], ["html", "HTML"], ["srt", "SRT Subtitles"], ["vtt", "WebVTT"]] as [fmt, label]}
-            <button
-              class="w-full text-left btn-md text-text-secondary hover:bg-hover hover:text-text"
-              onclick={() => handleExport(fmt)}
-            >{label}</button>
-          {/each}
-        </div>
-      {/if}
-    </div>
+  <div class="flex gap-1 px-7 pb-4">
+    <LumotiaButton variant="tertiary" onclick={copyAll}>Copy</LumotiaButton>
+    <LumotiaMenu
+      align="start"
+      items={[
+        { value: "txt", label: "Plain Text", onSelect: () => handleExport("txt") },
+        { value: "md", label: "Markdown", onSelect: () => handleExport("md") },
+        { value: "csv", label: "CSV", onSelect: () => handleExport("csv") },
+        { value: "html", label: "HTML", onSelect: () => handleExport("html") },
+        { value: "srt", label: "SRT Subtitles", onSelect: () => handleExport("srt") },
+        { value: "vtt", label: "WebVTT", onSelect: () => handleExport("vtt") },
+      ]}
+    >
+      {#snippet trigger()}
+        <LumotiaButton variant="tertiary">Export</LumotiaButton>
+      {/snippet}
+    </LumotiaMenu>
   </div>
 </div>