feat(tui): go to parent keybind for subagents (#5762)

packages/opencode/src/cli/cmd/tui/routes/session/header.tsx

@@ -81,6 +81,9 @@ export function Header() {
               <text fg={theme.text}>
                 <b>Subagent session</b>
               </text>
+              <text fg={theme.text}>
+                Parent <span style={{ fg: theme.textMuted }}>{keybind.print("session_parent")}</span>
+              </text>
               <text fg={theme.text}>
                 Prev <span style={{ fg: theme.textMuted }}>{keybind.print("session_child_cycle_reverse")}</span>
               </text>

packages/opencode/src/cli/cmd/tui/routes/session/index.tsx

@@ -870,6 +870,23 @@ export function Session() {
         dialog.clear()
       },
     },
+    {
+      title: "Go to parent session",
+      value: "session.parent",
+      keybind: "session_parent",
+      category: "Session",
+      disabled: true,
+      onSelect: (dialog) => {
+        const parentID = session()?.parentID
+        if (parentID) {
+          navigate({
+            type: "session",
+            sessionID: parentID,
+          })
+        }
+        dialog.clear()
+      },
+    },
   ])
 
   const revertInfo = createMemo(() => session()?.revert)