Support scheduled travel agreements

docs/PUBLIC_DEALS.md

@@ -33,7 +33,7 @@ future interaction. Same-turn deferred payments and a live travel deal cannot
 be newly combined in either order. Existing simple or expression Truthtrance
 bribe commitments block new travel consent; while travel is pending, a simple,
 expression or mixed bribe question offers only I don't know until the two
-planners can evaluate those obligations together. Optional modules, Advanced, future turns,
+planners can evaluate those obligations together. Optional modules, Advanced,
 multi-party payments paired with travel, arbitrary prose and other action families remain
 unfinished. An unaccepted offer from an earlier turn cannot be accepted.
 
@@ -43,6 +43,30 @@ term and shared-event policy are provisional online representations, not
 publisher restrictions on agreements. Complete rules and deployed acceptance
 remain open.
 
+## Structured later-turn travel — 29 October 2026
+
+**Prototyped / Partial.** The same Basic classic agreement may name a later
+turn. All parties may accept until that turn; a group traveler still accepts
+last. Final consent records a scheduled native receipt without reserving
+today's forces or spice or predicting future income. On the due turn the term
+becomes pending and the existing physical shipment/movement controls and owner
+guide apply. An immediate two-party bribe still pays at final consent and can
+be collected and spent before later travel. All parties may release a scheduled
+term; a game ending before the due turn voids it.
+
+The accepted-order guard rejects voluntarily losing a witnessed completion.
+The bounded search does not assume an unfunded journey is impossible in an
+earlier phase; income or other events may still make it possible. When the
+traveler actually closes their movement turn, an unwitnessed scheduled term is
+provisionally voided so the game can continue. This is a bounded online policy,
+not proof that every theoretical route or third-party contribution was searched.
+An objectively contradictory future term is rejected on acceptance using only
+the public action, destination and thresholds; unrelated future resources are
+not inspected. The same player cannot newly combine a scheduled travel term
+and an unpaid deferred bribe due in that same turn; their joint funding still
+needs a shared planner. Whole-turn Truthtrance, other modules and broader external-funding
+interactions still require integration evidence.
+
 ## Staged group alliances — 28 October 2026
 
 The unexposed Basic classic group prototype treats each member as allied to