lgbot: steer only within LG reach on the same floor; let the AI walk around walls

Co-Authored-By: Claude Opus 5.5 <[email protected]>

docs/ADMIN.md

@@ -60,7 +60,7 @@ Range is the distance it tries to keep (LG reaches 768). Lane is how far it may
 
 Underneath it's plain console settings, if you'd rather: `./rcon addbot lgbot <aim>`, `./rcon set lgbot_move <1-5>`, and `lgbot_strafe_min`, `lgbot_strafe_max`, `lgbot_fake`, `lgbot_range`, `lgbot_range_play`, `lgbot_speed`, `lgbot_lane`. The plugin rereads them every second. `set lgbot_debug 1` writes one line a second about its movement to `home/minqlx.log`.
 
-The bot fights the nearest human; with nobody nearby it roams like a normal bot. One lgbot at a time.
+The bot fights the nearest human. Its own movement only takes over when you're within LG reach (900 units) on about the same floor; farther away, the normal bot AI walks it over to you. If a wall blocks its strafing for half a second, it lets the AI walk around for 1.5 s. One lgbot at a time.
 
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