Release v0.6.1 - UI improvements and bug fixes

- Fix admin license test popup showing empty product field
- Display product name in bold in test license modal
- Split auto-update settings into notification and auto-install options
- Add filter functionality to customer account licenses page
- Update translations (402 strings)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

assets/css/frontend.css

@@ -37,6 +37,80 @@
     color: #383d41;
 }
 
+/* Filter Form */
+.wclp-filter-form {
+    margin-bottom: 1.5em;
+    padding: 1em;
+    background-color: #f8f9fa;
+    border: 1px solid #e5e5e5;
+    border-radius: 8px;
+}
+
+.wclp-filter-row {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 1em;
+    align-items: flex-end;
+}
+
+.wclp-filter-field {
+    display: flex;
+    flex-direction: column;
+    gap: 0.3em;
+    flex: 1;
+    min-width: 150px;
+}
+
+.wclp-filter-field label {
+    font-size: 0.85em;
+    font-weight: 600;
+    color: #666;
+}
+
+.wclp-filter-field select {
+    width: 100%;
+    padding: 0.5em 0.75em;
+    border: 1px solid #ddd;
+    border-radius: 4px;
+    background-color: #fff;
+    font-size: 0.95em;
+}
+
+.wclp-filter-field select:focus {
+    border-color: #0073aa;
+    outline: none;
+    box-shadow: 0 0 0 1px #0073aa;
+}
+
+.wclp-filter-actions {
+    display: flex;
+    gap: 0.5em;
+}
+
+.wclp-filter-actions .button {
+    padding: 0.5em 1em;
+    font-size: 0.95em;
+    white-space: nowrap;
+}
+
+@media (max-width: 600px) {
+    .wclp-filter-row {
+        flex-direction: column;
+    }
+
+    .wclp-filter-field {
+        min-width: 100%;
+    }
+
+    .wclp-filter-actions {
+        width: 100%;
+    }
+
+    .wclp-filter-actions .button {
+        flex: 1;
+    }
+}
+
 /* License Packages */
 .woocommerce-licenses {
     display: flex;