fix(tui): hide reasoning panels immediately

Make /reasoning hide update the thinking section visibility so existing and live reasoning blocks disappear without waiting for config sync.

ui-tui/src/app/slash/commands/session.ts

@@ -332,7 +332,29 @@ export const sessionCommands: SlashCommand[] = [
 
       ctx.gateway
         .rpc<ConfigSetResponse>('config.set', { key: 'reasoning', session_id: ctx.sid, value: arg })
-        .then(ctx.guarded<ConfigSetResponse>(r => r.value && ctx.transcript.sys(`reasoning: ${r.value}`)))
+        .then(
+          ctx.guarded<ConfigSetResponse>(r => {
+            if (!r.value) {
+              return
+            }
+
+            if (r.value === 'hide') {
+              patchUiState(state => ({
+                ...state,
+                sections: { ...state.sections, thinking: 'hidden' },
+                showReasoning: false
+              }))
+            } else if (r.value === 'show') {
+              patchUiState(state => ({
+                ...state,
+                sections: { ...state.sections, thinking: 'expanded' },
+                showReasoning: true
+              }))
+            }
+
+            ctx.transcript.sys(`reasoning: ${r.value}`)
+          })
+        )
     }
   },
 

ui-tui/src/app/useMainApp.ts

@@ -711,6 +711,7 @@ export function useMainApp(gw: GatewayClient) {
   const anyPanelVisible = SECTION_NAMES.some(
     s => sectionMode(s, ui.detailsMode, ui.sections, ui.detailsModeCommandOverride) !== 'hidden'
   )
+  const thinkingPanelVisible = sectionMode('thinking', ui.detailsMode, ui.sections, ui.detailsModeCommandOverride) !== 'hidden'
 
   const showProgressArea = useTurnSelector(state =>
     anyPanelVisible
@@ -723,7 +724,7 @@ export function useMainApp(gw: GatewayClient) {
           state.tools.length ||
           state.todos.length ||
           state.turnTrail.length ||
-          hasReasoning ||
+          (thinkingPanelVisible && hasReasoning) ||
           state.activity.length
         )
       : state.activity.some(item => item.tone !== 'info')