refactor(ui): share Scene and CCTV action buttons

src/ui/styles/action-button.css

@@ -0,0 +1,59 @@
+/* Ordinary actions share one surface; feature classes own placement and width.
+ * Legacy scene-btn hooks keep untouched toggles/Street Level controls stable. */
+.gev-action-button,
+.scene-btn {
+  background: rgba(255, 255, 255, 0.05);
+  border: 1px solid rgba(255, 255, 255, 0.14);
+  border-radius: 7px;
+  color: var(--text-secondary);
+  font-family: var(--font-mono);
+  font-size: 9px;
+  letter-spacing: 1.2px;
+  padding: 6px 9px;
+  cursor: pointer;
+  transition:
+    background-color var(--transition-fast),
+    border-color var(--transition-fast),
+    color var(--transition-fast),
+    opacity var(--transition-fast);
+  white-space: nowrap;
+}
+
+.gev-action-button:hover:not(:disabled),
+.scene-btn:hover:not(:disabled) {
+  color: var(--accent);
+  border-color: var(--accent);
+  background: rgba(0, 212, 255, 0.14);
+}
+
+.gev-action-button:disabled,
+.scene-btn:disabled {
+  opacity: 0.45;
+  cursor: default;
+}
+
+.gev-action-button--danger:hover:not(:disabled),
+.scene-btn-danger:hover:not(:disabled) {
+  color: #ff7272;
+  border-color: #ff7272;
+  background: rgba(255, 88, 88, 0.15);
+}
+
+/* Shot-row actions retain their smaller footprint and quieter hover treatment. */
+.gev-action-button--compact {
+  border-radius: 6px;
+  font-size: 8px;
+  letter-spacing: 0.8px;
+  padding: 4px 6px;
+}
+
+.gev-action-button--compact:hover:not(:disabled) {
+  color: var(--text-primary);
+  border-color: var(--glass-border-hover);
+  background: rgba(255, 255, 255, 0.05);
+}
+
+.gev-action-button--compact.gev-action-button--danger:hover:not(:disabled) {
+  color: #ff7e7e;
+  border-color: #ff7e7e;
+}