fix: unify status text to 'Scanning...' in LibraryView

Problem:
- Status badge showed 'Scanning'
- Progress bar showed 'Processing...'
- Two different texts displayed simultaneously

Solution:
- Change progress bar text to 'Scanning...'
- Now both badge and progress bar use consistent terminology

src/views/LibraryView.vue

@@ -108,7 +108,7 @@
             </div>
             <div v-else-if="f.status === 'processing'" class="ms-fm-progress">
               <div class="ms-fm-progress-bar" style="width: 100%"></div>
-              <div class="ms-fm-progress-text">Processing...</div>
+              <div class="ms-fm-progress-text">Scanning...</div>
             </div>
             <div class="ms-fm-meta">
               <div class="ms-fm-name">{{ f.file_name }}</div>