fix(tui): add /queue command support across tui and routing

src/frontends/tui/components/App.tsx

@@ -326,6 +326,101 @@ export function App({
         setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Transfer not supported in fullscreen mode.' })]);
         return;
 
+      case 'queue': {
+        if (!command.action || command.action === 'show') {
+          const mode = session.getConfig('queue.mode') ?? 'collect';
+          const cap = session.getConfig('queue.cap') ?? '50';
+          const overflow = session.getConfig('queue.overflow') ?? 'drop_old';
+          const debounceMs = session.getConfig('queue.debounce_ms') ?? '0';
+          const summarizeOverflow = session.getConfig('queue.summarize_overflow') ?? 'true';
+          const text = [
+            'Queue policy:',
+            `mode: ${mode}`,
+            `cap: ${cap}`,
+            `overflow: ${overflow}`,
+            `debounce_ms: ${debounceMs}`,
+            `summarize_overflow: ${summarizeOverflow}`,
+          ].join('\n');
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: text })]);
+          return;
+        }
+
+        if (command.action === 'reset') {
+          session.deleteConfig('queue.mode');
+          session.deleteConfig('queue.cap');
+          session.deleteConfig('queue.overflow');
+          session.deleteConfig('queue.debounce_ms');
+          session.deleteConfig('queue.summarize_overflow');
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Reset session queue overrides.' })]);
+          return;
+        }
+
+        const raw = (command.args ?? '').trim();
+        const [rawKey, ...rest] = raw.split(/\s+/);
+        const value = rest.join(' ').trim();
+        if (!rawKey || !value) {
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Usage: /queue set <mode|cap|overflow|debounce_ms|summarize_overflow> <value>' })]);
+          return;
+        }
+
+        const key = rawKey.toLowerCase();
+        if (key === 'mode') {
+          if (!['collect', 'followup', 'steer', 'steer_backlog', 'interrupt'].includes(value)) {
+            setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Invalid mode. Use: collect, followup, steer, steer_backlog, interrupt' })]);
+            return;
+          }
+          session.setConfig('queue.mode', value);
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: `Set queue.mode=${value}` })]);
+          return;
+        }
+
+        if (key === 'cap') {
+          const cap = Number.parseInt(value, 10);
+          if (!Number.isFinite(cap) || cap < 1 || cap > 1000) {
+            setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Invalid cap. Use an integer between 1 and 1000.' })]);
+            return;
+          }
+          session.setConfig('queue.cap', String(cap));
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: `Set queue.cap=${cap}` })]);
+          return;
+        }
+
+        if (key === 'overflow') {
+          if (value !== 'drop_old' && value !== 'drop_new') {
+            setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Invalid overflow. Use drop_old or drop_new.' })]);
+            return;
+          }
+          session.setConfig('queue.overflow', value);
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: `Set queue.overflow=${value}` })]);
+          return;
+        }
+
+        if (key === 'debounce_ms') {
+          const debounceMs = Number.parseInt(value, 10);
+          if (!Number.isFinite(debounceMs) || debounceMs < 0 || debounceMs > 60_000) {
+            setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Invalid debounce_ms. Use an integer between 0 and 60000.' })]);
+            return;
+          }
+          session.setConfig('queue.debounce_ms', String(debounceMs));
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: `Set queue.debounce_ms=${debounceMs}` })]);
+          return;
+        }
+
+        if (key === 'summarize_overflow') {
+          const normalized = value.toLowerCase();
+          if (normalized !== 'true' && normalized !== 'false') {
+            setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Invalid summarize_overflow. Use true or false.' })]);
+            return;
+          }
+          session.setConfig('queue.summarize_overflow', normalized);
+          setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: `Set queue.summarize_overflow=${normalized}` })]);
+          return;
+        }
+
+        setMessages(prev => [...prev, session.addMessage({ role: 'assistant', content: 'Unknown queue key. Use mode, cap, overflow, debounce_ms, summarize_overflow.' })]);
+        return;
+      }
+
       case 'message':
         break;
     }