tui: add consent dialog when sharing for the first time (#20525)

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

@@ -360,6 +360,11 @@ export function Session() {
           dialog.clear()
           return
         }
+        if (!kv.get("share_consent", false)) {
+          const ok = await DialogConfirm.show(dialog, "Share Session", "Are you sure you want to share it?")
+          if (ok !== true) return
+          kv.set("share_consent", true)
+        }
         await sdk.client.session
           .share({
             sessionID: route.sessionID,