Allow Richese No-Field reveal during Basic openings and markets

docs/RICHESE_NO_FIELD_RULES.md

@@ -2,6 +2,27 @@
 
 Audit date: 2026-09-06. This document distinguishes the printed token lifecycle from engine integration and unresolved combinations. It does not certify Richese, Homeworlds, or any other gated game mode.
 
+## Basic phase-opening and economic interruptions — 29 October 2026
+
+**Prototyped / Partial.** The publisher's CHOAM & Richese rulebook, printed
+p. 6, permits Richese to reveal a No-Field before Battle. In supported Basic
+native Ix/CHOAM games, the owner can now reveal during an Ix phase opening or
+selected ordinary auction, Richese cache and CHOAM market decisions. The
+existing private token/event control materializes the physical counters once,
+up to the actual reserves, while preserving the original pending choice and
+its continuation. Other players cannot issue that reveal. Its ordering within
+an online interruption is a provisional implementation, not a publisher
+priority ruling.
+
+Nested responses, Truthtrance and current-turn Truthtrance history, active
+commitments, Homeworlds and other optional-module compositions remain outside
+this slice. The current-turn history boundary is uniform across private answer
+residuals. Older saves without a public Truthtrance history retain the previous
+interruption behavior; newly created games initialize an empty history. An
+automatically resolved parent can still finish before a human uses this optional
+control. These limits do not certify the complete printed timing right, full
+factions or deployed acceptance.
+
 ## Fresh marker with native reserves — 28 October 2026
 
 **Prototyped / Partial.** In the existing native Basic and Advanced Homeworld