Highlight script row on Edit/dropdown button hover

[Tim020]

Summary

• Replicates the cue editor's existing row hover highlight behaviour in the script editor
• When hovering the Edit button or the dropdown caret on any script line, the full row highlights with a subtle semi-transparent background
• Implemented in both client/ (Vue 2) and client-v3/ (Vue 3) for feature parity

Implementation

Uses the same pure-CSS :has() pattern already in place in ScriptLineCueEditor.vue — no JavaScript or reactive state needed:

.script-line-row:has(.script-edit-controls:hover) {
  background-color: rgba(255, 255, 255, 0.06);
  border-radius: 4px;
  transition: background-color 0.15s ease;
}

Two classes added per file: script-line-row on the root row, script-edit-controls on the Edit/dropdown button group.

Test plan

• Navigate to the script editor and hover over the Edit button on any line — row highlights
• Hover over the dropdown caret — row highlights
• Move mouse away — highlight disappears
• Confirm behaviour matches the cue editor's add-cue button highlight
• Check both /ui/ (Vue 2) and /ui-new/ (Vue 3)

🤖 Generated with Claude Code

[github-actions]

Client V3 Test Results

23 tests  ±0   23 ✅ ±0   0s ⏱️ ±0s
 2 suites ±0    0 💤 ±0 
 1 files   ±0    0 ❌ ±0 

Results for commit 05bf847. ± Comparison against base commit c1a535c.

[github-actions]

Client Test Results

128 tests  ±0   128 ✅ ±0   0s ⏱️ ±0s
  6 suites ±0     0 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit 05bf847. ± Comparison against base commit c1a535c.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

Python Test Results

  1 files  ±0    1 suites  ±0   2m 9s ⏱️ +8s
662 tests ±0  662 ✅ ±0  0 💤 ±0  0 ❌ ±0 
667 runs  ±0  667 ✅ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit 05bf847. ± Comparison against base commit c1a535c.

[github-actions]

Playwright E2E Results (chromium)

164 tests  ±0   164 ✅ ±0   1m 38s ⏱️ -1s
 14 suites ±0     0 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit 05bf847. ± Comparison against base commit c1a535c.

[github-actions]

Playwright E2E Results (firefox)

164 tests  ±0   164 ✅ ±0   1m 39s ⏱️ -2s
 14 suites ±0     0 💤 ±0 
  1 files   ±0     0 ❌ ±0 

Results for commit 05bf847. ± Comparison against base commit c1a535c.