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/cli.ts

@@ -22,6 +22,7 @@ import { addInspectOptions, runInspectCommand } from "./commands/agent/inspect.j
 import { addWaitOptions, runWaitCommand } from "./commands/agent/wait.js";
 import { addArchiveOptions, runArchiveCommand } from "./commands/agent/archive.js";
 import { addAttachOptions, runAttachCommand } from "./commands/agent/attach.js";
+import { addImportOptions, runImportCommand } from "./commands/agent/import.js";
 import { withOutput } from "./output/index.js";
 import { onboardCommand } from "./commands/onboard.js";
 import {
@@ -60,6 +61,10 @@ export function createCli(): Command {
     withOutput(runRunCommand),
   );
 
+  addJsonAndDaemonHostOptions(addImportOptions(program.command("import"))).action(
+    withOutput(runImportCommand),
+  );
+
   addDaemonHostOption(addAttachOptions(program.command("attach"))).action(runAttachCommand);
 
   addDaemonHostOption(addLogsOptions(program.command("logs"))).action(runLogsCommand);