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capture(research): A6.P1 scen4 — cottage cellar paired traces

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Asymmetric pair (scenario-level, not protocol-failure):
- Retail: user walked UP out of the cellar (ascent of 2 cellar
  steps + exit through doorway) — captures ascent + indoor-to-
  outdoor transition.
- Acdream: user teleported INTO the cellar, walked a few meters,
  the resolver flung +Acdream OUTSIDE the cottage entirely
  (landblock prefix changed A9B4 -> A9B3 mid-walk) — captures
  a real indoor physics failure that's not a stair issue per se.

Both traces are valuable to A6.P2 even though they don't match
walk-for-walk.

Retail (decoded, 22,536 raw / 12,875 decoded BP lines):
  BP1 transitional_insert:  9,402
  BP4 find_collisions:     12,596  (ended in mem-access error
                                    @ hit#12596 - cdb hit a null
                                    transition arg, dropped to
                                    interactive prompt; worth a
                                    note for A6.P2 retail edge)
  BP5 adjust_sphere:          136
  BP6 check_walkable:         128
  BP2 step_up:                 13  (2-step cellar = 13 vs scen2
                                    4-step inn = 188; non-linear)
  BP7 set_contact_plane:        3  (Finding 2 holds)

Acdream (42,001 lines, ended with sling-out):
  [cp-write]:        35,624
  [check-bldg]:       5,495  (CheckBuildingTransit fired
                              constantly trying to re-resolve
                              which building +Acdream was in)
  [cell-cache]:         540
  [push-back-disp]:      82  (very few dispatcher hits)
  [push-back]:            1  (almost no sphere-adjustment)
  [indoor-bsp]:           2  (indoor BSP barely queried!)
  [cell-transit]:         3  (3 transit events captured the sling:
                              0xA9B40148 -> 0xA9B40029 -> 0xA9B30030
                              all reason=resolver)

Sling-out signature: indoor BSP never engaged (only 2 indoor-bsp
hits), but the cell resolver fired 3 transit events crossing a
landblock boundary, with check-bldg thrashing in between. This is
distinct from scen2's stair-attempt pattern (which hammered the
BSP); scen4 shows the resolver pushing the character out of indoor
space entirely without triggering the indoor BSP collision path.

A6.P2 fix surface: investigate why ResolveCellId / CheckBuildingTransit
push a player from indoor cell 0xA9B40148 to outdoor cell 0xA9B30030
through routine walking. Likely the same family as the M1.5 hypothesis:
indoor cell membership isn't sticky (the ping-pong bug from the
2026-05-20 A4 handoff in a different guise).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-05-21 20:50:09 +02:00
parent 4b5aebc61f
commit 46c6e08ee5
3 changed files with 87073 additions and 0 deletions
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