daemon: add run-agent RPC for queuing agent jobs

Adds `poc-memory daemon run-agent <type> <count>` CLI command that
sends an RPC to the daemon to queue agent runs, instead of spawning
separate processes.

Co-Authored-By: Kent Overstreet <kent.overstreet@linux.dev>

poc-memory/src/main.rs

@@ -2423,6 +2423,11 @@ fn cmd_daemon(sub: Option<&str>, args: &[String]) -> Result<(), String> {
         }
         Some("install") => daemon::install_service(),
         Some("consolidate") => daemon::rpc_consolidate(),
+        Some("run-agent") | Some("run") => {
+            let agent = args.first().map(|s| s.as_str()).unwrap_or("replay");
+            let count: usize = args.get(1).and_then(|s| s.parse().ok()).unwrap_or(1);
+            daemon::rpc_run_agent(agent, count)
+        }
         Some("tui") => tui::run_tui(),
         Some(other) => Err(format!("unknown daemon subcommand: {}", other)),
     }