Verified file:line: the live GDScript events modules have NO era-based max_tier
cap (0 hits) — headless flat max_tier=10 is correct parity; an era cap would
invent a rule the game lacks (gold-plating, dropped). And natural events already
fire + apply terrain effects headless; only the fired list surfacing to
TurnResult is missing (processor.rs:1117 `let _fired =`), an observability nicety
not a system gap. Confirms the headless natural-events system is functionally
complete; narrows Gap-2's real remainder.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>