fix(dashboard): fix pill counts and Bootstrap UI cleanup

- IMPORTED pill now includes ALREADY_IMPORTED orders in count
- UNINVOICED filter includes ALREADY_IMPORTED orders
- Pill counts (Toate/Importate/Omise/Erori/Nefacturate) always reflect
  full period+search, independent of active status filter
- Nefacturate count computed from SQLite cache across full period,
  not just current page
- Bootstrap UI: design tokens, soft badge pills, consistent font sizes,
  purge inline styles from templates, move badge-pct to style.css

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

api/app/templates/missing_skus.html

@@ -24,8 +24,8 @@
         Toate <span class="filter-count" id="cntAllSkus">0</span>
     </button>
     <input type="search" id="skuSearch" placeholder="Cauta SKU / produs..." class="search-input">
-    <button id="rescanBtn" class="btn btn-secondary btn-compact" style="margin-left:0.5rem;">&#8635; Re-scan</button>
-    <span id="rescanProgress" style="display:none;align-items:center;gap:0.4rem;font-size:0.8125rem;color:#1d4ed8;">
+    <button id="rescanBtn" class="btn btn-sm btn-secondary ms-2">&#8635; Re-scan</button>
+    <span id="rescanProgress" class="align-items-center gap-2 text-primary" style="display:none;">
         <span class="sync-live-dot"></span>
         <span id="rescanProgressText">Scanare...</span>
     </span>
@@ -199,7 +199,7 @@ function renderMissingSkusTable(skus, data) {
     tbody.innerHTML = skus.map(s => {
         const statusBadge = s.resolved
             ? '<span class="badge bg-success">Rezolvat</span>'
-            : '<span class="badge bg-warning text-dark">Nerezolvat</span>';
+            : '<span class="badge bg-warning">Nerezolvat</span>';
 
         let firstCustomer = '-';
         try {