Counter each changing origin in a resident BG gather

Hold both physical groups until all required matching responses allow the original movement. Share normal packet denials across gather and ordinary moves, then resume one original movement suffix.

docs/ADVISOR_MATCHING.md

@@ -1,5 +1,73 @@
 # Matching incoming Bene Gesserit groups
 
+## Planetologist gathering into residents — 24 October 2026
+
+**Prototyped / Partial.** Supplied physical28
+requires matching resident BG forces, while physical17 counters one physical
+group's conversion. Partition an actual Planetologist gather by its two board
+origins and reuse normal matching quotes for each origin whose stance differs
+from the residents. One changing origin gets one response; two get two. Normal
+public ten-field movement receipts and denial keys stay unchanged.
+
+Neither source supplies a worked simultaneous two-origin ordering. Under the
+standing recommended-policy authority, order changing origins by their stable
+territory IDs and keep the whole gather physically atomic. A private parent
+binds the original complete movement, exact receipt queue, current index and
+approved events. Public progress identifies the current group without copying
+the original private order. Allowing the first counter moves or flips nothing;
+all required allowances precede the original CHOAM/movement/collection suffix.
+Consume the batch before invoking that suffix once. Revalidate the actual
+living Planetologist, both packets, routes and original destination throughout.
+
+Preventing any group stops the whole declared gather before force, stance,
+collection or movement use changes. Record only that origin packet's existing
+normal matching denial for this destination and movement opportunity. Gathering
+cannot bypass a prior normal denial, nor can an ordinary move bypass a gather
+denial. A new response UUID, changed sector or reordered selection does not
+create another permission. A legal replacement without the prevented packet
+remains available. Do not import the separate enemy-only provisional flip stamp
+or a turn-wide ban. Human drafts and minimal bots reuse the partition quote.
+
+Basic, same-type arrivals and the existing no-resident enemy-only/empty policy
+retain their original behavior. Existing recorded `planetologistGather`
+responses keep their one-shot protocol; they are not converted into new queues.
+This resident-matching addition does not settle wider empty-arrival sequencing
+or certify complete Leader Skills/mode/module combinations.
+
+[Native fixture](../tests/fixture-advisor-gather-matching.ts) earns original
+public Advanced BG/Atreides/Emperor base33 and all14 Skills. The actual original
+offer/assignment grants Planetologist; actual advisor setup retains Arrakeen
+beside native Atreides10. Paid Basin2 and Oh Gap1 sources are both distance1
+away without advisor ornithopters. A real Emperor bribe1 funds the six-spice
+shipments; mixed sources additionally earn actual Emperor entry and Intrusion.
+No played force, wallet, hand, phase, assignment, stance or response is installed.
+The mixed source takes78 public actions; the double source takes73.
+
+[Connected cases](../tests/advisor-gather-matching-engine.test.ts) and the frozen
+batch pass **15 files274/274**, types/lint/build, seven native declaration/group-
+response/replacement/GameTable SSR journeys and eight existing-profile paths
+with sixteen accepted response/replacement actions. Both changing groups have
+separate windows. First allowance changes only the private approval cursor;
+both forces and original Karama remain. Second prevention leaves the whole
+movement unused, including through a bounded JSON boundary. Same-packet retries
+are blocked in both normal/gather directions; a genuine larger Basin packet
+and ordinary/same-type replacement move once. The actual Skill inventory stays
+intact. Tampered original signatures and unearned approval indices fail before
+cancellation cost. This is not a saved-game recovery certificate.
+
+Focused mixed allowance and second-group prevention pass. Fixture type feedback
+makes the owned offer and before-action stage snapshot explicit; final runtime,
+union, types/lint/build pass. Bounded review finds no concrete queue/callback
+blocker. Private proof and HTML:
+`/home/quintine/.local/share/dune/checkpoints/20261024-advisor-gather-matching/`.
+`frozen-integrated-2/report.json` binds tree
+`a80519bde0b171bf7d5b2325e58b2d6cab6d9173566e954811e2bcf6e47d0374`,
+2770 files on base `b2a20226d7caa34a5c020052c1eb7f0ebafdd385`.
+Final prose/reference overlays are separately reviewed. SSR is not callback/
+hydration/browser acceptance. Wider empty sequencing, modules and complete-mode/
+final assurance remain open. No AI refinement or saved-room/D1/server/reset/
+restart/deployment operation. This is the user's requested stopping push.
+
 ## Guild and Junction transport — 24 October 2026
 
 **Prototyped / Partial.** Compose supplied revised