Fix rebase typecheck for chat-agent wiring stubs

Author: TheGreatAxios

src/context-compactor.test.ts

@@ -980,7 +980,6 @@ describe("createPruningCompactor — consolidated handoff (CL-7521)", () => {
     expect(allText(result2.output)).toContain("UNIQUE_SUCCESS_SUMMARY");
     expect(hasConsecutiveSameRole(result2.output)).toBe(false);
   });
-}
 });
 
 describe("buildContextEnvelope", () => {

src/session/assemble-runtime.test.ts

@@ -128,6 +128,7 @@ function stubChatAgentWiring(overrides: Partial<ChatAgentWiring> = {}): ChatAgen
     requestContinuation: () => {},
     getProvider: () => ({ providerName: "test", model: "m" }),
     getWorkdir: () => "/build-dir",
+    getSessionId: () => "test-session",
     inferenceDeps: stubInferenceDeps(),
     getSources: () => [
       {