fix(ui): audio-source modal — preserve device on refresh, relocate refresh action

- Move the device refresh button into the label row next to "Audio Device:"
  so it can no longer overflow the Source panel edge; introduces a small
  .label-row-action style alongside .hint-toggle.
- Restore device selection after refresh by matching on (index, loopback)
  value first, with a trimmed name fallback for OS-side reindexing.
- _selectAudioDevice now syncs the EntitySelect trigger so the visible
  label matches the underlying <select> when the modal opens in edit mode.
- Drop unused min-width/overflow on .transport-status.

server/src/ledgrab/static/css/layout.css

@@ -151,8 +151,6 @@ h1 {
     font-family: var(--font-mono, monospace);
     font-size: 0.7rem;
     color: var(--lux-ink-dim, var(--text-secondary));
-    min-width: 0;
-    overflow: hidden;
 }
 
 .transport-status {

server/src/ledgrab/static/css/modal.css

@@ -2189,6 +2189,40 @@
     box-shadow: 0 0 0 2px color-mix(in srgb, var(--primary-color) 22%, transparent);
 }
 
+/* Compact action button slotted into a .label-row alongside .hint-toggle.
+   Pushes itself to the trailing edge so the label and hint stay grouped
+   left while utility actions (e.g. refresh) sit at the row end. */
+.label-row-action {
+    margin-left: auto;
+    flex-shrink: 0;
+    background: none;
+    border: 1px solid var(--border-color);
+    border-radius: 50%;
+    width: 20px;
+    height: 20px;
+    font-size: 0.85rem;
+    line-height: 1;
+    color: var(--text-secondary);
+    cursor: pointer;
+    padding: 0;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    opacity: 0.7;
+    transition: opacity 0.2s, color 0.2s, border-color 0.2s;
+}
+
+.label-row-action:hover {
+    opacity: 1;
+    color: var(--lux-ink, var(--text-color));
+    border-color: var(--lux-line-bold, var(--border-color));
+}
+
+.label-row-action:disabled {
+    opacity: 0.35;
+    cursor: not-allowed;
+}
+
 /* Floating hint tooltip — anchored to the active `.hint-toggle` button.
    Replaces the legacy inline small.input-hint reveal which pushed the
    form below it down on every help click. The popover is `position:
@@ -2406,16 +2440,6 @@
     min-width: auto;
 }
 
-.select-with-action {
-    display: flex;
-    gap: 6px;
-    align-items: center;
-}
-
-.select-with-action select {
-    flex: 1;
-    min-width: 0;
-}
 
 .fps-hint {
     display: block;

server/src/ledgrab/static/js/features/audio-sources.ts

@@ -279,8 +279,15 @@ function _filterDevicesBySelectedTemplate() {
     const select = document.getElementById('audio-source-device') as HTMLSelectElement | null;
     if (!select) return;
 
+    // Snapshot current selection BEFORE rebuilding options. We try to
+    // restore it afterwards by:
+    //   1. exact value match — `${index}:${loopback}` — survives a refresh
+    //      whenever the OS keeps the same device index (the common case);
+    //   2. name match — survives an OS-side reindex (Windows occasionally
+    //      reorders devices) provided the device label is unchanged.
+    const prevValue = select.value;
     const prevOption = select.options[select.selectedIndex];
-    const prevName = prevOption ? prevOption.textContent : '';
+    const prevName = (prevOption?.textContent ?? '').trim();
 
     const templateId = ((document.getElementById('audio-source-audio-template') as HTMLSelectElement | null) || { value: '' } as any).value;
     const templates = _cachedAudioTemplates || [];
@@ -305,9 +312,16 @@ function _filterDevicesBySelectedTemplate() {
         select.innerHTML = '<option value="-1:1">Default</option>';
     }
 
-    if (prevName) {
+    const opts = Array.from(select.options) as HTMLOptionElement[];
-        const match = Array.from(select.options).find((o: HTMLOptionElement) => o.textContent === prevName);
+    let restored: HTMLOptionElement | undefined;
-        if (match) select.value = match.value;
+    if (prevValue) {
+        restored = opts.find(o => o.value === prevValue);
+    }
+    if (!restored && prevName) {
+        restored = opts.find(o => (o.textContent ?? '').trim() === prevName);
+    }
+    if (restored) {
+        select.value = restored.value;
     }
 
     if (_asDeviceEntitySelect) _asDeviceEntitySelect.destroy();
@@ -330,7 +344,14 @@ function _selectAudioDevice(deviceIndex: any, isLoopback: any) {
     if (!select) return;
     const val = `${deviceIndex ?? -1}:${isLoopback !== false ? '1' : '0'}`;
     const opt = Array.from(select.options).find((o: HTMLOptionElement) => o.value === val);
-    if (opt) select.value = val;
+    if (opt) {
+        select.value = val;
+        // EntitySelect's trigger button is a separate DOM node populated at
+        // construction time from the select's then-current value. Without
+        // this, the trigger keeps showing the first option even though the
+        // native select already points at the saved device.
+        if (_asDeviceEntitySelect) _asDeviceEntitySelect.setValue(val);
+    }
 }
 
 function _loadParentSources(selectedId?: any) {

server/src/ledgrab/templates/modals/audio-source-editor.html

@@ -64,14 +64,12 @@
                                 <div class="label-row">
                                     <label for="audio-source-device" data-i18n="audio_source.device">Audio Device:</label>
                                     <button type="button" class="hint-toggle" onclick="toggleHint(this)" title="?" data-i18n-aria-label="aria.hint">?</button>
+                                    <button type="button" class="label-row-action" id="audio-source-refresh-devices" onclick="refreshAudioDevices()" data-i18n-title="audio_source.refresh_devices" title="Refresh devices">&#x21BB;</button>
                                 </div>
                                 <small class="input-hint" style="display:none" data-i18n="audio_source.device.hint">Audio input source. Loopback devices capture system audio output; input devices capture microphone or line-in.</small>
-                                <div class="select-with-action">
                                 <select id="audio-source-device">
                                     <!-- populated dynamically -->
                                 </select>
-                                    <button type="button" class="btn btn-secondary btn-sm" id="audio-source-refresh-devices" onclick="refreshAudioDevices()" data-i18n-title="audio_source.refresh_devices" title="Refresh devices">&#x21BB;</button>
-                                </div>
                             </div>
                         </div>