common_libs/movements/wave_surfer.nim was written in an early session and
never wired to the bot. This connects it exactly like tfil/strafe and fixes
the defects a full read found:
1. the dodge direction was INVERTED: the perpendicular was built from the
bot->enemy bearing while GF lives in the enemy->bot frame, so the bot
moved toward MORE danger. Now built from the wave's origin->bot bearing:
+90 provably increases GF.
2. the danger histogram was never reset (resetRound cleared waves only), so
it was a battle-long static average. Now reset to the uniform prior each
round.
3. fire detection tracked only the current target's energy via one scalar;
now per-enemy (seq[(id,energy)]) so melee target switches cannot invent
or hide waves.
4. the wall penalty projected a point from the wave origin, not from the
bot, making the wall test meaningless. Now projects the bot->candidate
direction.
Wave speed uses the actual firepower (the one-tick energy drop IS the
firepower, so speed = 20 - 3*drop is exact). Adds TR_SURF_* knobs and
registers them in the env report. Shipped TR_MOVEMENT=tfil default untouched
(test_tfil_commit_env: 30/30 pass; test_env_report: pass).
SirStone
0f5cfe37b2