erga 0.28.0 — max · eco · min

Download erga-0.28.0-arm64.dmg, drag to Applications, then:

xattr -dr com.apple.quarantine /Applications/erga.app

Added

• max · eco · min, beside solo and the pool. How much of the machine mining
  may take, as a duty cycle: dispatch a batch, then stand aside for a
  proportional rest. Wall-clock share is the honest unit — it is what the fans,
  the battery and every other app on the machine actually feel.

  mode	measured	of full tilt
  max	42–47 MH/s	100%
  eco	9.1 MH/s	21% (asked 25%)
  min	3.6 MH/s	8% (asked 10%)

  The gap is fixed per-dispatch cost. The rate shown is real — those hashes
  genuinely are not being done. The setting is a four-byte file the miner
  re-reads twice a second, so moving the control is felt at once instead of
  costing an epoch-table rebuild. erg mine --intensity max|eco|min from the
  terminal.

Changed

• The scan stopped allocating three GPU buffers per dispatch. They were
  asked of Metal eight times a second and thrown away; only their contents
  change, not their storage. Over five-minute runs the mean rate went from
  38.0 MH/s to 49.4 — about 29%, though thermal drift makes the exact figure
  soft.

Zero clippy findings; 21 tests.