Improve calibration UI: animated config sections, always-visible tick labels, zoom-independent fonts, smooth line selection

- Replace <details> with grid-template-rows animated expand for template config sections
- Always show edge boundary tick labels in both simple and advanced calibration
- Make tick labels, monitor names, and tick marks zoom-independent in advanced calibration
- Place new monitors next to existing ones and fit view on add
- Fix layout jump on line selection: toggle class in-place instead of DOM rebuild
- Use transparent border-left on all line items to prevent content shift

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

server/src/wled_controller/static/css/advanced-calibration.css

@@ -0,0 +1,166 @@
+/* ── Advanced Calibration ─────────────────────────────────── */
+
+.advcal-layout {
+    display: flex;
+    gap: 16px;
+    margin-bottom: 12px;
+    align-items: stretch;
+}
+
+.advcal-canvas-panel {
+    flex: 1 1 60%;
+    min-width: 0;
+}
+
+#advcal-canvas {
+    width: 100%;
+    height: auto;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    background: rgba(10, 15, 25, 0.9);
+}
+
+.advcal-canvas-hint {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    color: var(--text-secondary);
+    margin-top: 4px;
+}
+
+.advcal-lines-panel {
+    flex: 0 0 220px;
+    display: flex;
+    flex-direction: column;
+    align-self: stretch;
+}
+
+.advcal-line-list {
+    flex: 1;
+    overflow-y: auto;
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    background: var(--card-bg);
+}
+
+.advcal-leds-counter {
+    text-align: center;
+    font-size: 0.8em;
+    color: var(--text-secondary);
+    margin-top: 4px;
+}
+
+.advcal-line-add {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 8px;
+    cursor: pointer;
+    color: var(--primary-color, #0078ff);
+    font-size: 1.2em;
+    font-weight: 600;
+    border-top: 1px dashed var(--border-color);
+    transition: background 0.15s, color 0.15s;
+    opacity: 0.7;
+}
+
+.advcal-line-add:hover {
+    background: rgba(0, 120, 255, 0.12);
+    opacity: 1;
+}
+
+.advcal-line-item {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    padding: 6px 8px;
+    padding-left: 11px;
+    cursor: pointer;
+    border-bottom: 1px solid var(--border-color);
+    border-left: 3px solid transparent;
+    font-size: 0.82em;
+    transition: background 0.15s, border-color 0.15s;
+}
+
+.advcal-line-item:last-child {
+    border-bottom: none;
+}
+
+.advcal-line-item:hover {
+    background: rgba(255, 255, 255, 0.04);
+}
+
+.advcal-line-item.selected {
+    background: rgba(0, 120, 255, 0.15);
+    border-left-color: rgba(0, 180, 255, 0.8);
+}
+
+.advcal-line-color {
+    width: 10px;
+    height: 10px;
+    border-radius: 50%;
+    flex-shrink: 0;
+}
+
+.advcal-line-label {
+    flex: 1;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.advcal-line-leds {
+    font-size: 0.85em;
+    color: var(--text-secondary);
+    min-width: 24px;
+    text-align: right;
+}
+
+.advcal-line-actions {
+    display: flex;
+    gap: 2px;
+    flex-shrink: 0;
+}
+
+.btn-micro {
+    background: none;
+    border: 1px solid transparent;
+    color: var(--text-secondary);
+    cursor: pointer;
+    padding: 1px 4px;
+    font-size: 0.75em;
+    border-radius: 3px;
+    line-height: 1;
+}
+
+.btn-micro:hover {
+    background: rgba(255, 255, 255, 0.08);
+    border-color: var(--border-color);
+}
+
+.btn-micro.btn-danger:hover {
+    background: rgba(255, 50, 50, 0.15);
+    color: #ff5555;
+}
+
+.btn-micro:disabled {
+    opacity: 0.3;
+    cursor: default;
+}
+
+.advcal-line-props {
+    padding: 12px;
+    background: var(--card-bg);
+    border: 1px solid var(--border-color);
+    border-radius: 6px;
+    margin-top: 8px;
+}
+
+.checkbox-label {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    cursor: pointer;
+    font-size: 0.85em;
+}