fix(app): close missing session tabs (#33785)

packages/app/src/utils/server-errors.test.ts

@@ -1,6 +1,7 @@
 import { describe, expect, test } from "bun:test"
+import type { SessionNotFoundError } from "@opencode-ai/sdk/v2/client"
 import type { ConfigInvalidError, ProviderModelNotFoundError } from "./server-errors"
-import { formatServerError, parseReadableConfigInvalidError } from "./server-errors"
+import { formatServerError, isSessionNotFoundError, parseReadableConfigInvalidError } from "./server-errors"
 
 function fill(text: string, vars?: Record<string, string | number>) {
   if (!vars) return text
@@ -142,3 +143,33 @@ describe("formatServerError", () => {
     expect(formatServerError(wrapped, language.t)).toBe("Arquivo de config em config invalido: Missing host")
   })
 })
+
+describe("isSessionNotFoundError", () => {
+  test("matches an SDK-wrapped error for the requested session", () => {
+    const body = {
+      _tag: "SessionNotFoundError",
+      sessionID: "ses_missing",
+      message: "Session not found",
+    } satisfies SessionNotFoundError
+
+    expect(isSessionNotFoundError(new Error(body.message, { cause: { body, status: 404 } }), body.sessionID)).toBe(true)
+  })
+
+  test("rejects errors for other sessions and other 404 responses", () => {
+    const body = {
+      _tag: "SessionNotFoundError",
+      sessionID: "ses_parent",
+      message: "Session not found",
+    } satisfies SessionNotFoundError
+
+    expect(isSessionNotFoundError(new Error(body.message, { cause: { body, status: 404 } }), "ses_tab")).toBe(false)
+    expect(
+      isSessionNotFoundError(
+        new Error("Provider not found", {
+          cause: { body: { _tag: "ProviderNotFoundError", providerID: "missing" }, status: 404 },
+        }),
+        "ses_tab",
+      ),
+    ).toBe(false)
+  })
+})

packages/app/src/utils/server-errors.ts

@@ -42,6 +42,13 @@ function unwrapNamedError(error: unknown): unknown {
   return error
 }
 
+export function isSessionNotFoundError(error: unknown, sessionID: string) {
+  const unwrapped = unwrapNamedError(error)
+  if (typeof unwrapped !== "object" || unwrapped === null) return false
+  const value = unwrapped as Record<string, unknown>
+  return value._tag === "SessionNotFoundError" && value.sessionID === sessionID
+}
+
 function isConfigInvalidErrorLike(error: unknown): error is ConfigInvalidError {
   if (typeof error !== "object" || error === null) return false
   const o = error as Record<string, unknown>