feat(gachabase): add full Gachabase fetcher, parser, web modal and FreeSR importer

css/styles.css

@@ -2401,4 +2401,106 @@ input:checked + .slider:before {
   filter: grayscale(0.8);
 }
 
+/* Gachabase Importer & Modal Styling */
+.gachabase-quick-chip {
+  background: rgba(255, 255, 255, 0.05) !important;
+  border: 1px solid var(--border-color) !important;
+  color: var(--text-main) !important;
+  cursor: pointer;
+  transition: var(--transition);
+}
+
+.gachabase-quick-chip:hover {
+  background: rgba(251, 191, 36, 0.15) !important;
+  border-color: var(--accent-gold) !important;
+  color: var(--accent-gold) !important;
+}
+
+.gachabase-preview-card {
+  display: flex;
+  gap: 1.25rem;
+  background: var(--bg-card);
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-md);
+  padding: 1.25rem;
+  margin-bottom: 1rem;
+}
+
+.gachabase-art-column {
+  width: 220px;
+  min-width: 220px;
+  display: flex;
+  flex-direction: column;
+  gap: 0.75rem;
+  align-items: center;
+}
+
+.gachabase-art-img {
+  width: 100%;
+  max-height: 280px;
+  object-fit: cover;
+  border-radius: var(--radius-sm);
+  border: 1px solid var(--border-color);
+  background: rgba(0, 0, 0, 0.4);
+}
+
+.gachabase-details-column {
+  flex: 1;
+  min-width: 0;
+  display: flex;
+  flex-direction: column;
+  gap: 0.85rem;
+}
+
+.gachabase-header-title {
+  font-size: 1.4rem;
+  font-weight: 800;
+  color: #fff;
+  display: flex;
+  align-items: center;
+  gap: 0.6rem;
+}
+
+.gachabase-skill-item {
+  background: rgba(0, 0, 0, 0.25);
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-sm);
+  padding: 0.6rem 0.8rem;
+  display: flex;
+  gap: 0.75rem;
+  align-items: flex-start;
+}
+
+.gachabase-skill-icon {
+  width: 36px;
+  height: 36px;
+  min-width: 36px;
+  border-radius: 6px;
+  background: rgba(0, 0, 0, 0.4);
+  border: 1px solid var(--border-color);
+  object-fit: contain;
+  padding: 2px;
+}
+
+.gachabase-eidolon-item {
+  background: rgba(0, 0, 0, 0.25);
+  border: 1px solid var(--border-color);
+  border-radius: var(--radius-sm);
+  padding: 0.5rem 0.75rem;
+  display: flex;
+  gap: 0.6rem;
+  align-items: center;
+}
+
+@media (max-width: 768px) {
+  .gachabase-preview-card {
+    flex-direction: column;
+    align-items: center;
+  }
+  .gachabase-art-column {
+    width: 100%;
+  }
+}
+
+