FN-6777: add artifact registry storage
Add a core artifact registry for storing metadata and task-scoped artifact payloads.\n\n- Add artifact types, schema, migrations, store APIs, and exports for registering/listing artifact metadata.\n- Persist binary artifact payloads under task or project artifact directories and hydrate artifacts during worktree acquisition.\n- Cover registry behavior, DB schema, and worktree hydration with tests and document storage semantics.\n\nFiles changed:\n .changeset/fn-6777-artifact-registry.md | 5 +\n docs/storage.md | 8 +\n packages/core/src/__tests__/artifacts.test.ts | 257 +++++++++++++++++++++\n packages/core/src/__tests__/db.test.ts | 5 +\n packages/core/src/db.ts | 59 ++++-\n packages/core/src/index.ts | 2 +-\n packages/core/src/store.ts | 220 +++++++++++++++++-\n packages/core/src/types.ts | 75 ++++++\n .../engine/src/__tests__/executor-test-helpers.ts | 1 +\n .../engine/src/__tests__/executor-worktree.test.ts | 2 +\n .../__tests__/worktree-acquisition-backend.test.ts | 2 +-\n .../worktree-acquisition-secrets-env.test.ts | 2 +-\n .../worktree-acquisition-worktrunk.test.ts | 2 +-\n .../src/__tests__/worktree-acquisition.test.ts | 2 +-\n .../src/__tests__/worktree-db-hydrate.test.ts | 59 +++++\n packages/engine/src/worktree-acquisition.ts | 2 +-\n packages/engine/src/worktree-db-hydrate.ts | 42 +++-\n 17 files changed, 732 insertions(+), 13 deletions(-)
Fusion-Task-Id: FN-6777
Fusion-Task-Lineage: 42cdcdcf-6388-42fe-8de1-6857ef20839d
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