Owner decision 2026-08-28: expose separate fast-xp (powermine, drop) and
banked-income (deterministic target ore + mine, bank) modes; never select
highest-available rocks. Separate pickaxe gates per tier: Mining level
decides usability (rune 41), Attack only equipping (rune 40) — pinned
1-Attack/41-Mining carry-and-use example. Modeled policy rates recomputed
with cadence, respawn idle, drop/bank legs and breaks (fast-xp ~32,400
XP/hr; banked iron ~56,500 gp/hr); 52,500 kept as labeled external
benchmark only. Worked examples per mode covering preparation -> first
full inventory -> first break -> resume. Validator now proves the gate
distinction and both modes for mining entries.
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