Support group departures in joint commitment plans

docs/CURRENT_STATUS.md

@@ -17,12 +17,25 @@ open mode gates.
 
 ## Current checkpoint and work
 
+**Staged joint group commitments — 29 October. Prototyped / Partial.**
+The joint planner can retain matching group membership or quote a member's own
+departure, including payment to a former ally after leaving. An invitation
+pauses joint reconciliation; compatible admission checks combined payment and
+travel costs against the same purse. Thirteen related files pass 58 cases,
+including real answers, admission, departure, payments and a constrained shared
+wallet. Typecheck, lint and the production build pass. Two older whole-turn
+affordability cases were corrected: in their fixture, an 11-spice payment can
+use an earlier payment and later Charity, while 13 cannot. Actual
+whole-turn group changes, member-commitment funding, other profiles and lobby
+entry remain unfinished. [Scope](OPTIONAL_ALLIANCE_VICTORY.md#group-admission-with-joint-commitments--29-october-2026).
+
 **Staged group admission with live commitments — 29 October. Prototyped / Partial.**
 Each proposer and accepting member is checked against their own bribe and
 alliance answers; unrelated participants can still negotiate and bots decline
-blocked consent. Pending invitations preserve alliance answers. Admission is
-fenced when the older whole-turn planner could misread combined alliance and
-payment/travel answers as a pair-only state. Fourteen related files pass 82
+blocked consent. Pending invitations preserve alliance answers. Admission
+was initially fenced when the older whole-turn planner could misread combined
+alliance and payment/travel answers as a pair-only state; the later prototype
+above narrows that fence. Fourteen related files pass 82
 cases, and the joint-planner regression passes separately. Typecheck, lint and
 the production build pass. Group funding with
 member commitments, whole-turn Nexus changes, other profiles and lobby entry

docs/OPTIONAL_ALLIANCE_VICTORY.md

@@ -1,5 +1,18 @@
 # Optional three-stronghold alliance victory
 
+## Group admission with joint commitments — 29 October 2026
+
+**Staged Basic prototype, not a selectable game mode.** The joint
+turn-action planner recognizes an existing group and can quote the member's
+own departure. Pending invitations pause joint reconciliation while departure
+is unavailable. Admission checks a detached completed group against the
+participant's combined accepted payment and travel answers, so commitments
+continue to share the actual resources. Admission requiring departure remains
+available when its joint witness can quote that owned departure. Payment to a
+former ally can be quoted after leaving. Actual whole-turn group changes,
+group funding with member commitments, wider
+profiles and lobby entry remain unfinished.
+
 ## Group admission with live commitments — 29 October 2026
 
 **Staged Basic prototype, not a selectable game mode.** A proposer or
@@ -14,12 +27,11 @@ decline when their own acceptance is blocked. The pending invitation can be
 declined, and alliance answers are not released merely because it temporarily
 prevents departure. Unanimous consent remains a provisional online procedure.
 
-Admission stays fenced for a participant with both an alliance answer and an
-unresolved payment or travel-family answer when the older whole-turn planner
-is present: that planner still assumes pairs. Group funding with a member's
-commitment, whole-turn Nexus changes, wider profiles and lobby entry remain
-unfinished. These focused staged cases do not certify complete group play or
-expansion combinations.
+Admission originally stayed fenced for a participant with both an alliance
+answer and an unresolved payment or travel-family answer when the older
+whole-turn planner was present; the later group-aware route above narrows
+that fence. These staged cases do not certify complete group play or expansion
+combinations.
 
 ## Group departures and unrelated commitments — 29 October 2026
 

docs/RULE_DECISIONS.md

@@ -1,5 +1,13 @@
 # Rule decision index
 
+## Group admission with joint commitments — 29 October 2026
+
+Staged Basic admission can retain a matching group alliance answer alongside
+jointly feasible payment or travel answers. Joint planning can quote owned
+group departure outside a pending invitation, including a later payment to a
+former ally. Whole-turn group changes remain fenced.
+[Scope](OPTIONAL_ALLIANCE_VICTORY.md#group-admission-with-joint-commitments--29-october-2026).
+
 ## Group admission with live commitments — 29 October 2026
 
 Staged Basic group admission checks each proposer's or accepting participant's