Dimos(simulation=...) is applied after the blueprint import that reads it

Dimos(simulation="mujoco").run("xarm-grasp") composes the hardware stack and then tries to reach an xArm and a RealSense that are not attached.

1. run() resolves the target first and applies the constructor's overrides second (dimos/porcelain/dimos.py, resolve at line 78, global_config.update at line 81).
2. Resolving a name imports the blueprint module, and blueprints settle the arm-versus-sim split at import time: SIMULATED = bool(global_config.simulation) in xarm/blueprints/grasp.py:59, and several module-scope branches in unitree_g1_groot_wbc.py and unitree_g1_teleop.py.
3. The import therefore reads the default and the override lands too late. The CLI already applies global config before resolving names

Found by greptile on #3873 rather than by anything failing in use, so nothing is blocked.

Synced from DIM-1668 by stash