feat: hermetic branch-N replay runner (MRR-ITE) - #1
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Pin project metadata and dependencies, add LICENSE, and stop tracking egg-info so local installs stay out of version control.
Establish the architectural decision record and baseline notes so later slices have a shared design anchor.
Define the vendored MRR execution profile contract used to pin hermetic replay inputs.
Provide typed profile parsing against the schema with valid and invalid fixtures for offline checks.
Introduce a provider interface so replay orchestration can swap Morph for a deterministic local fake.
Wire the Morph SDK-backed adapter behind the shared provider interface for real remote replay runs.
Encode offline and isolation mode checks so runners can refuse non-hermetic configurations early.
Define the multi-branch intervention manifest contract for hermetic branch-N schedules.
Implement manifest parsing and branch-N scheduling against fixtures so multi-intervention replays stay deterministic.
Capture the accounting contract for CPU, memory, and network usage emitted by replay runs.
Aggregate per-branch resource measurements into schema-aligned reports for cost and capacity analysis.
Define the contract for comparing branch outcomes against a baseline replay.
Compare branch artifacts against a baseline and emit schema-valid differential summaries.
Include RuntimeReceipt and ArtifactIntegrity schemas so evidence emission stays offline-validatable.
Generate PCS receipts from replay runs and validate instances against the vendored schemas.
Add TransformationRecord, LineageBundle, and MorphReplayReport contracts with mirror metadata.
Produce MorphReplayReport and LineageBundle artifacts and ship valid linkage fixtures for conformance tests.
Centralize stable hashing used by manifests, snapshots, and evidence linkage.
Reserve the OVK integration surface so optional verification hooks can land without reshaping imports.
Refactor entrypoints to use profiles, providers, and evidence paths; keep legacy core available for compatibility.
Exercise import smoke, accounting, diff, PCS, profile, and provider modules offline.
Verify mode gates and branch-N scheduling against fixtures without network access.
Cover secret isolation, schema instance validity, PIP linkage, and offline CI gate scripts.
Run lint, typecheck, and hermetic tests without Morph credentials; keep replay workflow optional and lean.
Clarify non-claims, threat model, release checklist, and changelog so operators know what the runner does and does not assert.
Record decisions for profiles, providers, hermeticity, scheduling, resources, differentials, PCS, PIP, and release security.
Explain vendored MRR/PCS/PIP schemas and how offline fixtures map to conformance tests.
Ship a copyable profile, manifest, interventions, and snapshot refs for local branch-N demos.
Keep vendored schema mirrors honest and validate fixture instances offline before release.
Automate fixture refresh and produce a reproducible release artifact tree for distribution.
Align the container build and compose wiring with the new package layout and offline defaults.
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Summary
Test plan
examples/hermetic-branch-nagainst the documented flow