fix(cron): prevent isolated hook session-key double-prefixing (land #27333, @MaheshBhushan)

Co-authored-by: MaheshBhushan <mkoduri73@gmail.com>

src/cron/isolated-agent/run.session-key.test.ts

@@ -0,0 +1,28 @@
+import { describe, expect, it } from "vitest";
+import { resolveCronAgentSessionKey } from "./run.js";
+
+describe("resolveCronAgentSessionKey", () => {
+  it("builds an agent-scoped key for legacy aliases", () => {
+    expect(resolveCronAgentSessionKey({ sessionKey: "main", agentId: "main" })).toBe(
+      "agent:main:main",
+    );
+  });
+
+  it("preserves canonical agent keys instead of prefixing twice", () => {
+    expect(resolveCronAgentSessionKey({ sessionKey: "agent:main:main", agentId: "main" })).toBe(
+      "agent:main:main",
+    );
+  });
+
+  it("normalizes canonical keys to lowercase before reuse", () => {
+    expect(
+      resolveCronAgentSessionKey({ sessionKey: "AGENT:Main:Hook:Webhook:42", agentId: "x" }),
+    ).toBe("agent:main:hook:webhook:42");
+  });
+
+  it("keeps hook keys scoped under the target agent", () => {
+    expect(resolveCronAgentSessionKey({ sessionKey: "hook:webhook:42", agentId: "main" })).toBe(
+      "agent:main:hook:webhook:42",
+    );
+  });
+});