* feat: add worktree-lifecycle service (ecc.worktree-lifecycle.v1)
The "unowned moat" from the orchestrator landscape research: no existing
tool ships deterministic merge-conflict prediction or a safe worktree GC.
- scripts/lib/worktree-lifecycle/git.js: injectable, hermetic git layer.
Predicts merge conflicts WITHOUT touching the working tree via
`git merge-tree`. Strips inherited GIT_* env so it is safe inside hooks.
- scripts/lib/worktree-lifecycle/lifecycle.js: deterministic state machine
(main/dirty/conflict/merge-ready/merged/stale/idle) + planCleanup that
buckets worktrees into remove / salvage / keep. Only fully-merged trees
are auto-removable; stale (unmerged+inactive) => salvage, never deleted.
- scripts/worktree-lifecycle.js: CLI (--json/--conflicts/--stale/
--cleanup-plan/--base/--stale-days/--repo).
- tests/lib/worktree-lifecycle.test.js: 11 tests (fake-git + real-git).
Safety model mirrors the reference-arch salvage rule, validated by the
2026-06-05 MacBook->Mac Mini consolidation. Tests: 11/0.
* fix: hermetic git env in session adapters + mcp-inventory lint
- session adapters (codex-worktree, opencode): resolveGitBranch stripped
no git env, so the "outside a repo" path returned the host branch when
run inside a git hook (GIT_DIR set). Strip GIT_* before rev-parse.
- mcp-inventory: fix eslint no-unused-vars (signatures) and a stale
eslint-disable directive in the merged code.
* test: run each test with inherited git env stripped (hermetic runner)
When the suite runs inside a git hook (pre-push), git sets GIT_DIR/
GIT_WORK_TREE, which hijack 'git -C <dir>' calls in tests that exercise
real git, making them operate on the host repo. Strip GIT_* before
spawning each test so the suite is isolated from ambient git state.
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Co-authored-by: ECC Test <ecc@example.test>
