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/commands/agent/index.ts

@@ -13,6 +13,7 @@ import { addAttachOptions, runAttachCommand } from "./attach.js";
 import { addReloadOptions, runReloadCommand } from "./reload.js";
 import { addImportOptions, runImportCommand } from "./import.js";
 import { runUpdateCommand } from "./update.js";
+import { runDetachCommand } from "./detach.js";
 import { withOutput } from "../../output/index.js";
 import {
   addDaemonHostOption,
@@ -76,6 +77,13 @@ export function createAgentCommand(): Command {
     withOutput(runReloadCommand),
   );
 
+  addJsonAndDaemonHostOptions(
+    agent
+      .command("detach")
+      .description("Make a subagent independent without stopping or moving it")
+      .argument("<id>", "Agent ID, prefix, or name"),
+  ).action(withOutput(runDetachCommand));
+
   addJsonAndDaemonHostOptions(
     agent
       .command("update")