fix: prevent respawn cycle after plan mode auto-accept + enhance action log UI

- Add state check in startPlanCheck() to prevent Enter if state changed
- sendAutoAcceptEnter() now cancels pending AI idle checks and resets state
- Log auto-accept as [command] type for visibility in action log
- Highlight command entries with blue background in action log
- Show action log row when there are actions (not just timers)
- Increase action log height and opacity for better visibility

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/web/public/styles.css

@@ -521,10 +521,10 @@ body {
 
 .respawn-action-log {
   flex: 1;
-  max-height: 60px;
+  max-height: 100px;
   overflow-y: auto;
-  font-size: 0.65rem;
-  opacity: 0.75;
+  font-size: 0.7rem;
+  opacity: 0.9;
   font-family: 'SF Mono', Monaco, monospace;
   color: var(--text-dim);
 }
@@ -560,6 +560,24 @@ body {
   color: var(--text-dim);
 }
 
+/* Command entries are highlighted */
+.respawn-action-entry.action-command {
+  background: rgba(59, 130, 246, 0.15);
+  border-left: 2px solid var(--accent);
+  padding-left: 0.3rem;
+  margin: 0.15rem 0;
+}
+
+.respawn-action-entry.action-command .action-type {
+  color: var(--accent);
+  font-weight: 600;
+}
+
+.respawn-action-entry.action-command .action-detail {
+  color: var(--text);
+  font-weight: 500;
+}
+
 .respawn-indicator {
   color: var(--green);
   animation: spin 2s linear infinite;