ui(footer): move "Built with hubris" byline into LeftSidebar

Pulled the hubris/Roman-year line out of the TopBar and into a new
Footer component rendered below the Settings button in the left
sidebar bottom panel, where it reads as a quiet attribution rather
than competing with the title plate up top.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/layout/Footer.tsx

@@ -0,0 +1,26 @@
+const ROMAN_PAIRS: [number, string][] = [
+  [1000, 'M'], [900, 'CM'], [500, 'D'], [400, 'CD'],
+  [100, 'C'], [90, 'XC'], [50, 'L'], [40, 'XL'],
+  [10, 'X'], [9, 'IX'], [5, 'V'], [4, 'IV'], [1, 'I'],
+]
+
+function toRoman(n: number): string {
+  let result = ''
+  for (const [value, symbol] of ROMAN_PAIRS) {
+    while (n >= value) {
+      result += symbol
+      n -= value
+    }
+  }
+  return result
+}
+
+/** Slim end-of-page byline — sits below every section's content as a
+ *  quiet attribution line. */
+export function Footer() {
+  return (
+    <div className="px-2 pt-1 text-right text-[9px] font-serif italic text-text-faint">
+      Built with hubris · {toRoman(new Date().getFullYear())}
+    </div>
+  )
+}

frontend/src/components/layout/LeftSidebar.tsx

@@ -27,6 +27,7 @@ import {
   Download as DownloadIcon,
 } from 'lucide-react'
 import { DateRangePicker } from '../filter/DateRangePicker'
+import { Footer } from './Footer'
 import { cn } from '@/lib/utils'
 import { sourceFolders, photos as photosApi, downloads, type FolderTreeNode } from '../../services/api'
 import { useMutation, useQueryClient } from '@tanstack/react-query'
@@ -639,6 +640,7 @@ export function LeftSidebar() {
             const showOnFolders =
               isSectionHeader && item.id === 'folders' && scanActivity.active
             const showOnFolderRow =
+              scanActivity.isScanning &&
               !!item.path &&
               !!scanActivity.currentFolder &&
               scanActivity.currentFolder.startsWith(item.path)
@@ -943,6 +945,8 @@ export function LeftSidebar() {
             Settings
           </button>
         )}
+
+        <Footer />
       </div>
 
       <DeleteFolderDialog

frontend/src/components/layout/TopBar.tsx

@@ -7,23 +7,6 @@ const MULIMAGO_ASCII = `▖  ▖  ▜ ▘
 ▛▖▞▌▌▌▐ ▌▛▛▌▀▌▛▌█▌
 ▌▝ ▌▙▌▐▖▌▌▌▌█▌▙▌▙▖`
 
-const ROMAN_PAIRS: [number, string][] = [
-  [1000, 'M'], [900, 'CM'], [500, 'D'], [400, 'CD'],
-  [100, 'C'], [90, 'XC'], [50, 'L'], [40, 'XL'],
-  [10, 'X'], [9, 'IX'], [5, 'V'], [4, 'IV'], [1, 'I'],
-]
-
-function toRoman(n: number): string {
-  let result = ''
-  for (const [value, symbol] of ROMAN_PAIRS) {
-    while (n >= value) {
-      result += symbol
-      n -= value
-    }
-  }
-  return result
-}
-
 /**
  * Slim top bar — animated walking mule on the left over a tiled desert
  * backdrop. Sidebar toggle buttons live on the FilterBar.
@@ -65,11 +48,6 @@ export function TopBar() {
           {MULIMAGO_ASCII}
         </pre>
       </div>
-      <div className="flex items-center gap-2">
-        <span className="text-[10px] font-serif text-black/80">
-          Built with hubris • {toRoman(new Date().getFullYear())}
-        </span>
-      </div>
     </header>
   )
 }