fix(csp): wire display sliders and accent picker without inline on*

The display brightness/contrast sliders and the accent color picker
rendered dynamic HTML with inline oninput/onchange/onclick attributes,
which are blocked by the script-src 'self' CSP — so display settings
were silently un-clickable from the WebUI.

Replace the inline attributes with data-* markers, then attach proper
event listeners after innerHTML (delegated on the container for the
slider rows, direct for the accent dropdown).

media_server/static/js/links.js

@@ -182,8 +182,7 @@ export async function loadDisplayMonitors() {
                     <span class="display-slider-label" data-i18n="display.contrast">${t('display.contrast')}</span>
                     <input type="range" class="display-slider display-contrast-slider"
                            min="0" max="100" value="${contrastValue}"
-                           oninput="onDisplayContrastInput(${monitor.id}, this.value)"
+                           data-display-slider="contrast" data-monitor-id="${monitor.id}">
-                           onchange="onDisplayContrastChange(${monitor.id}, this.value)">
                     <span class="display-slider-value" id="contrast-val-${monitor.id}">${contrastValue}%</span>
                 </div>`;
             }
@@ -296,8 +295,7 @@ export async function loadDisplayMonitors() {
                     </svg>
                     <span class="display-slider-label" data-i18n="display.brightness">${t('display.brightness')}</span>
                     <input type="range" class="display-slider display-brightness-slider" min="0" max="100" value="${brightnessValue}" ${brightnessDisabled}
-                           oninput="onDisplayBrightnessInput(${monitor.id}, this.value)"
+                           data-display-slider="brightness" data-monitor-id="${monitor.id}">
-                           onchange="onDisplayBrightnessChange(${monitor.id}, this.value)">
                     <span class="display-slider-value display-brightness-value" id="brightness-val-${monitor.id}">${brightnessValue}%</span>
                 </div>
                 ${contrastRow}
@@ -306,10 +304,15 @@ export async function loadDisplayMonitors() {
             container.appendChild(card);
         });
 
-        // Bind a single delegated click handler for the power buttons.
+        // Bind a single delegated click handler for the power buttons,
-        // Avoids inline onclick="..." with interpolated monitor data.
+        // plus input/change handlers for the brightness & contrast sliders.
+        // Avoids inline on* attributes (blocked by script-src 'self' CSP).
         container.removeEventListener('click', _onPowerButtonClick);
         container.addEventListener('click', _onPowerButtonClick);
+        container.removeEventListener('input', _onDisplaySliderInput);
+        container.addEventListener('input', _onDisplaySliderInput);
+        container.removeEventListener('change', _onDisplaySliderChange);
+        container.addEventListener('change', _onDisplaySliderChange);
 
         // Enhance every tuning <select> with an IconSelect now that the
         // cards are in the DOM (IconSelect needs offsetParent + sibling).
@@ -456,6 +459,30 @@ function _onPowerButtonClick(event) {
     if (Number.isFinite(id)) toggleDisplayPower(id);
 }
 
+function _onDisplaySliderInput(event) {
+    const el = event.target.closest('input[data-display-slider]');
+    if (!el) return;
+    const id = Number(el.dataset.monitorId);
+    if (!Number.isFinite(id)) return;
+    if (el.dataset.displaySlider === 'brightness') {
+        onDisplayBrightnessInput(id, el.value);
+    } else if (el.dataset.displaySlider === 'contrast') {
+        onDisplayContrastInput(id, el.value);
+    }
+}
+
+function _onDisplaySliderChange(event) {
+    const el = event.target.closest('input[data-display-slider]');
+    if (!el) return;
+    const id = Number(el.dataset.monitorId);
+    if (!Number.isFinite(id)) return;
+    if (el.dataset.displaySlider === 'brightness') {
+        onDisplayBrightnessChange(id, el.value);
+    } else if (el.dataset.displaySlider === 'contrast') {
+        onDisplayContrastChange(id, el.value);
+    }
+}
+
 export async function toggleDisplayPower(monitorId) {
     const btn = document.getElementById(`power-btn-${monitorId}`);
     const isOn = btn && btn.classList.contains('on');

media_server/static/js/player.js

@@ -207,20 +207,39 @@ export function renderAccentSwatches() {
     const swatches = accentPresets.map(p =>
         `<div class="accent-swatch ${p.color === current ? 'active' : ''}"
               style="background: ${p.color}"
-              onclick="selectAccentColor('${p.color}', '${p.hover}')"
+              data-accent-color="${p.color}" data-accent-hover="${p.hover}"
               title="${p.name}"></div>`
     ).join('');
 
     const customRow = `
-        <div class="accent-custom-row ${isCustom ? 'active' : ''}" onclick="document.getElementById('accentCustomInput').click()">
+        <div class="accent-custom-row ${isCustom ? 'active' : ''}" data-accent-custom-row>
             <span class="accent-custom-swatch" style="background: ${isCustom ? current : '#888'}"></span>
             <span class="accent-custom-label">${t('accent.custom')}</span>
-            <input type="color" id="accentCustomInput" value="${current}"
+            <input type="color" id="accentCustomInput" value="${current}">
-                   onclick="event.stopPropagation()"
-                   onchange="selectAccentColor(this.value, lightenColor(this.value, 15))">
         </div>`;
 
     dropdown.innerHTML = swatches + customRow;
+
+    // Wire CSP-safe handlers (script-src 'self' blocks inline on* attributes).
+    dropdown.querySelectorAll('.accent-swatch[data-accent-color]').forEach(el => {
+        el.addEventListener('click', () => {
+            selectAccentColor(el.dataset.accentColor, el.dataset.accentHover);
+        });
+    });
+    const customRowEl = dropdown.querySelector('[data-accent-custom-row]');
+    const customInput = dropdown.querySelector('#accentCustomInput');
+    if (customRowEl && customInput) {
+        customRowEl.addEventListener('click', (e) => {
+            // The native color popup only opens from a user-initiated click on
+            // the <input>. Forward clicks on the row to the input — except when
+            // the input itself was the source (avoids re-entry).
+            if (e.target !== customInput) customInput.click();
+        });
+        customInput.addEventListener('click', (e) => e.stopPropagation());
+        customInput.addEventListener('change', () => {
+            selectAccentColor(customInput.value, lightenColor(customInput.value, 15));
+        });
+    }
 }
 
 export function selectAccentColor(color, hover) {