feat: manage image captions and tags from the admin panel

public/assets/styles.css

@@ -1132,3 +1132,127 @@ dialog::backdrop {
     animation: none;
   }
 }
+
+/* Image metadata administration */
+.admin-toolbar {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  gap: 12px;
+  margin: 20px 0;
+  color: var(--outline);
+  font-size: 12px;
+}
+
+.admin-toolbar input,
+.admin-toolbar select,
+.metadata-editor textarea {
+  background: var(--surface, #080808);
+  border: 1px solid var(--outline-variant);
+  color: var(--on-surface, #eee);
+  padding: 10px;
+  font: inherit;
+  max-width: 100%;
+}
+
+.admin-toolbar input:focus,
+.admin-toolbar select:focus,
+.metadata-editor textarea:focus {
+  outline: 1px solid var(--primary);
+}
+
+.admin-tag-manager {
+  border: 1px solid var(--outline-variant);
+  padding: 16px;
+  color: var(--outline);
+  font-size: 12px;
+}
+
+.admin-tag-manager summary {
+  color: var(--primary);
+  cursor: pointer;
+}
+
+.admin-tag-list,
+.image-tag-options {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 10px;
+}
+
+.admin-tag {
+  display: inline-flex;
+  align-items: center;
+  gap: 12px;
+  border: 1px solid var(--outline-variant);
+  padding: 8px;
+}
+
+.metadata-editor {
+  display: grid;
+  gap: 12px;
+  padding: 12px;
+  color: var(--outline);
+  font-size: 12px;
+}
+
+.metadata-editor textarea {
+  width: 100%;
+  resize: vertical;
+  line-height: 1.5;
+}
+
+.metadata-editor fieldset {
+  min-width: 0;
+  border: 1px solid var(--outline-variant);
+  padding: 10px;
+}
+
+.image-tag-options {
+  max-height: 160px;
+  overflow-y: auto;
+}
+
+.image-tag-options label {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.image-tag-options input {
+  accent-color: var(--primary);
+}
+
+.admin-pagination {
+  justify-content: center;
+}
+
+.admin-busy button:not(#stop-generation),
+.admin-busy input,
+.admin-busy textarea,
+.admin-busy select {
+  pointer-events: none;
+  opacity: 0.65;
+}
+
+.admin-toolbar [hidden] {
+  display: none;
+}
+
+button:disabled {
+  opacity: 0.4;
+  cursor: default;
+}
+
+.admin-page .topbar {
+  position: sticky;
+  height: auto;
+  min-height: 64px;
+  flex-wrap: wrap;
+  gap: 12px;
+  padding-block: 12px;
+}
+
+.admin-page .shell {
+  padding-top: 24px;
+}