I don't see how Therapeutic Mantle would work with Martial Spirit at all. First of all, while the soulmeld does say "spell or effect", which would seem to include maneuvers as an "effect", the bonus is based on the "spell level", which a maneuver doesn't have. OK, it'd be a reasonable houserule to use the maneuver level instead... But that still doesn't help you heal others. The chakra bind does help with healing others, but it does not give them the same benefit you get: That ability specifically applies only to spells, not effects, and the only way it improves them is by increasing caster level. Even if we houserule that to include maneuvers and initiator level, it still doesn't help Martial Spirit, and helps Crusader's Strike only a little bit before it hits the cap.