Governor-review bounce (PR #10) fixes on issue-5:
1. Timing units + rates: one OSRS tick = 0.6s so a 3-tick cast is 1.8s,
not 5.4s as both action comments claimed. The mandatory 1.6-3.4s
post-action delay (mid ~2.5s) allows ~1,440 casts/hr before overhead;
rates are now pinned at 1,400 casts/hr: LA 43,400 / SII 74,200 / HLA
91,000 xp/hr (was 55,800 / 95,400 / 117,000 @ 1,800). The old 1,800
figures were unreachable under the entries' own pacing.
2. Nature rune limit unified to 18000 (mapping 'limit' + Module:Exchange
agree, fetched live 2026-08-27): low-alch-f2p 12500 -> 18000, matching
magic-alch-handoff. tools/validate.py gains a cross-entry supply-fact
consistency check (same item+source must agree on ge_limit; run on
every gate invocation) plus --selftest regression fixtures: diverging
limits must fail, agreeing limits must pass, missing ge_limit is not
gated.
3. SII tier is now phase-aware and translatable: actions split into
cast-alch (LA/HLA -> cheapest alch candidate, noted stack) and
cast-superheat (SII 43-55 -> unnoted ore whose live bar margin is
positive; never a noted stack, never a price-only pick; on_fail skip
when no positive-margin ore). State machine pins each tier path
(LA <43, SII window chosen/skipped 43-55, HLA >=55), bank_supplies
banks smelted bars, buy-supplies restricts ores to positive-margin
recipes.
Tests: python3 tools/validate.py -> 2 entries, 0 errors, 0 warnings;
--selftest -> 3 PASS; negative test (reintroducing 12500) caught by the
new check; git diff --check clean.
9a2f936c05