d0750ab020
The default mover painted a 30/10 radiance blob on the arena centre even though the arena has NO physical pillar there, creating a 4x4 tile (144x144 px) exclusion zone over open centre floor. Set PillarHotness/PillarRadiance to 0/0 in the shipped default (matching the ring variant) and add TR_TFIL_PILLAR_ON=1 to restore the old 30/10 field for A/B without a rebuild; registered in env_report. Because the shipped default legitimately changed, the default-path parity golden (fixtures/tfil_commit_default.golden) was regenerated from the NEW default, with an explicit 'deliberate default change' note in the test so a future failure is treated as a real regression. Also register the three env reads job j102 added in common_libs/bitbrain (TR_BITBRAIN_MODE / _DECAY_EVERY / _DECAY_SHIFT), which the env-report guard was failing on. Verification: test_env_report all green; test_tfil_commit_env 30/30.