chore(openspec): archive lifecycle-provider-core-internal-l2

[Drswith]

Summary

Archive completed OpenSpec change lifecycle-provider-core-internal-l2 after its implementation PR (#723) merged, syncing the accepted runtime-boundaries and compatibility-contract deltas into openspec/specs/.

Rebased onto latest main after #726 (L3 OpenSpec archive). Product-path KEEP hangs on exactly src/lifecycle/index.ts so classify still sets run_test_matrix=true. It does not touch src/core/lifecycle/uninstall-postcondition.ts.

Main specs now require provider-binding resolution and observeLifecycleProvider to live in Core-internal modules under src/core/lifecycle/, keep the remaining src/lifecycle barrel outside Core until a later knife (L3 archive text from #726 is preserved), and freeze v1 JSON/aliases/exit codes/state v2 plus the published quantex-core export list across that internalization.

Linked Artifacts

• Issue: refactor(core): move lifecycle provider-binding into Core-internal #723
• ADR: docs/adr/0012-core-internal-lifecycle-provider-binding.md
• OpenSpec: lifecycle-provider-core-internal-l2

Validation

• bun run openspec:validate
• bun run memory:check
• bun run lint
• bun run format:check
• bun run typecheck

bun run test is not applicable for behavior: the only src/ edit is a one-line keep comment on src/lifecycle/index.ts with no runtime effect. Full CI matrix (including macOS) is expected after this push because that comment is a product-path touch.

Release Intent

• Release: not applicable - OpenSpec archive closure only

Release Summary

• Not applicable - OpenSpec archive closure does not produce a release entry. Internal changelog for the L2 provider-binding move is already covered by the refactor(core): move lifecycle provider-binding into Core-internal #723 commit override.

Docs Updated

• openspec/...

Scope Check

• I did not add a new ad hoc root-level Markdown file.
• I updated the relevant issue, ADR, spec, runbook, or captured the missing doc work as follow-up.
• I did not silently expand project scope without recording it explicitly.

Closure Check

• Working tree was clean before archive closure started.
• Branch was pushed and this PR is the active delivery artifact.
• OpenSpec change is already archived or queued for agent-driven archive closure.
• Release is not applicable, delegated to release automation, or verified.

Notes

• Generated by bun run openspec:archive-closure -- lifecycle-provider-core-internal-l2 --apply-specs, then rebased onto main after refactor(core): move remaining lifecycle engines into Core-internal #724 and again after chore(openspec): archive lifecycle-engines-core-internal-l3 #726. refactor(core): move lifecycle provider-binding into Core-internal #723 did not apply living specs, so this archive used --apply-specs rather than --skip-specs.
• The L2 delta listed Remaining src/lifecycle engines SHALL stay outside Core until a later knife as ADDED, but chore(openspec): archive lifecycle-model-core-internal-l1 #722 had already added that header for L1 and chore(openspec): archive lifecycle-engines-core-internal-l3 #726 recast it to the L3 remaining-barrel text. This rebase keeps the chore(openspec): archive lifecycle-engines-core-internal-l3 #726 remaining-barrel requirement and adds only the L2-unique provider-binding / compatibility freeze requirements instead of reverting L3 living specs.
• The generated openspec/changes/archive/ directory was removed rather than committed, matching chore(openspec): archive fix-upgrade-unresolved-latest-crash #707, chore(openspec): archive cli-core-upgrade-p6 #712, chore(openspec): archive cursor-version-probe-targeting #720, chore(openspec): archive lifecycle-model-core-internal-l1 #722, chore(openspec): archive lifecycle-engines-core-internal-l3 #726, and every archive PR since 2026-08-16.
• Product-path keep comment hangs on exactly src/lifecycle/index.ts. Keep-only churn on src/core/lifecycle/uninstall-postcondition.ts was reverted. refactor(core): delete leftover src/lifecycle barrel #727 may delete the barrel later; that is out of scope for this L2 archive PR.
• Did not start L4 in this PR, and did not touch shelved changes release-one-line-delivery, release-pr-skip-human-heuristics, or windows-ci-advisory-merge-gate.
• No YAML. No SDK. No CLI behavior change in this PR. No protect-main change.