feat(92-buyer-name-copy): ikona kopiowania nazwy kupujacego w szczegolach zamowienia

Phase 92 complete:
- SVG clipboard icon przy nazwie w sekcji Dane zamawiajacego
- navigator.clipboard.writeText() z wizualnym feedbackiem (checkmark 1.5s)
- Style .copy-btn-inline i .copy-name-row

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

resources/scss/shared/_ui-components.scss

@@ -285,3 +285,31 @@
     max-width: 100%;
   }
 }
+
+.copy-name-row {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.copy-btn-inline {
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  background: none;
+  border: none;
+  padding: 2px;
+  cursor: pointer;
+  color: var(--c-text-muted, #999);
+  border-radius: 3px;
+  transition: color 0.15s;
+  flex-shrink: 0;
+
+  &:hover {
+    color: var(--c-primary);
+  }
+
+  .check-icon {
+    color: var(--c-action-primary);
+  }
+}