PLATFORM - Continuum admission family cutover

[flyingrobots]

Migrated from Method backlog

This issue was created from a legacy filesystem backlog card. GitHub Issues are now the live work tracker; repository docs remain Method evidence.

Source backlog: docs/method/backlog/up-next/PLATFORM_continuum-admission-family-cutover.md
Original lane: up-next
Original legend: PLATFORM

Original backlog card

PLATFORM - Continuum admission family cutover

Echo now has enough doctrine to stop hand-waving about admission at the shared
boundary. The next platform cut is to choose a small admission-facing family
slice and move it toward the Continuum/Wesley proof path.

This cycle should connect:

• BoundedSite
• admission outcome family
• shell versus witness layering
• policy identity where it affects published causal meaning

to the existing PLATFORM_continuum-proof-family-runtime-cutover work, without
trying to move the whole runtime across the boundary at once.

The current runtime now has enough truthful mapping to drive that platform cut:

• TickReceiptDisposition::Applied => Derived
• TickReceiptDisposition::Rejected(FootprintConflict) => Obstruction
• NeighborhoodSite::Singleton => Derived
• NeighborhoodSite::Braided => Plural
• SettlementDecision::ImportCandidate => Derived
• SettlementDecision::ConflictArtifact => Conflict

The next step is not inventing more local nouns. It is selecting one generated
Continuum family slice that can carry this same outcome algebra and shell /
witness layering across the Echo boundary.

The first concrete target for that cut is now:

• Continuum packet: docs/design/0022-neighborhood-core-and-admission-outcome-family/README.md
• authored family: schemas/continuum-neighborhood-core-family.graphql

[coderabbitai]

🔗 Related PRs

#323 - Witnessed suffix admission evaluator [merged]
#326 - Echo contract hosting roadmap [merged]
#358 - feat(core): add admission evidence boundaries [merged]
#368 - feat(core): connect installed contract intent pipeline [merged]
#382 - 0024 universal LE binary codec + 0025 sessions design (design-only) [merged]

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