Make workspace, agent, and schedule automation consistent (#2186)

* feat(workspaces): align agent and schedule automation

Make workspace identity the shared placement boundary for MCP and CLI, while caller identity determines parentage. Keep heartbeats minimal and cron-based without changing legacy rolling interval semantics.

* test(cli): expect canonical schedule cadence

* fix(automation): preserve workspace and schedule compatibility

* fix(automation): preserve compatibility edges

* fix(workspaces): align MCP lifecycle resolution

* fix(workspaces): preserve creation intent

* fix(workspaces): preserve branch and schedule identity

packages/cli/src/cli-surface.test.ts

@@ -0,0 +1,24 @@
+import { describe, expect, it } from "vitest";
+import { createCli } from "./cli.js";
+
+describe("canonical CLI surface", () => {
+  it("shows workspace and heartbeat commands while hiding worktree compatibility", () => {
+    const cli = createCli();
+    const help = cli.helpInformation();
+    expect(help).toContain("workspace");
+    expect(help).toContain("heartbeat");
+    expect(help).not.toContain("worktree");
+  });
+
+  it("hides legacy run worktree syntax", () => {
+    const run = createCli().commands.find((command) => command.name() === "run");
+    expect(run?.helpInformation()).toContain("--isolation <local|worktree>");
+    expect(run?.helpInformation()).not.toContain("--worktree <name>");
+  });
+
+  it("uses background for execution and reserves detach for ownership", () => {
+    const run = createCli().commands.find((command) => command.name() === "run");
+    expect(run?.helpInformation()).toContain("--background");
+    expect(run?.helpInformation()).not.toContain("--detach");
+  });
+});