clawd-actor 0.6.2 — no more blink

• No more Clawd flash on /reload-plugins (#3, #5). A command's busy moment sets the engine's working flag without starting a turn, which drew Clawd for one frame; the band now shows only while a turn actually runs. A band drawn just before a turn starts still animates through it. Found and fixed by @mangxy.

Update with /clawd-actor:update, then /reload-plugins.