feat(cli): add paseo import --provider <name> <id> to resume existing sessions (#632)

Surfaces the daemon's existing resume-from-persistence capability through a
new top-level CLI command so users can pull existing Claude Code, Codex, or
OpenCode sessions into Paseo without losing history. Adds a new additive
`import_agent_request` WebSocket message; no existing schemas change.

Refs #611, #237, #492; partially addresses #268.

packages/cli/src/commands/agent/index.ts

@@ -11,6 +11,7 @@ import { addInspectOptions, runInspectCommand } from "./inspect.js";
 import { addWaitOptions, runWaitCommand } from "./wait.js";
 import { addAttachOptions, runAttachCommand } from "./attach.js";
 import { addReloadOptions, runReloadCommand } from "./reload.js";
+import { addImportOptions, runImportCommand } from "./import.js";
 import { runUpdateCommand } from "./update.js";
 import { withOutput } from "../../output/index.js";
 import {
@@ -29,6 +30,10 @@ export function createAgentCommand(): Command {
     withOutput(runRunCommand),
   );
 
+  addJsonAndDaemonHostOptions(addImportOptions(agent.command("import"))).action(
+    withOutput(runImportCommand),
+  );
+
   addDaemonHostOption(addAttachOptions(agent.command("attach"))).action(runAttachCommand);
 
   addDaemonHostOption(addLogsOptions(agent.command("logs"))).action(runLogsCommand);