Files
oikos/internal/adapters
dtoro d4f5084a6d refactor: Phase 3a — absorb checkdefaults into core/app as pure Derive
Problem: check derivation logic lived in internal/checkdefaults with
the pure decision logic (buildKind, address/user/port resolution)
interleaved with tx I/O (entity_status insert, graph host fallback,
check upserts) — and internal/db importing it was the plan's called-out
inverted dependency.

Change:
- internal/core/app/checkdefaults.go: Derive(tree, target, lookup) —
  the full derivation (monitoring overrides, host fallback via an
  injected HostLookup thunk, per-kind builders) with zero I/O imports.
  Types renamed for the app surface: CheckTarget, CheckDef,
  DeriveResult, Skip; LogDeriveResult.
- internal/adapters/postgres/checks.go absorbs the I/O half:
  EnsureChecks (entity_status row + upsert loop), writeCheck, and
  hostViaGraph. The db→checkdefaults edge is gone — adapters→core is
  the ADR 0016 direction (the Phase 7 SeedService note anticipated
  this; the inversion is fixed a phase early).
- seed.go pending-checks loop uses app.CheckTarget + EnsureChecks;
  mcp formatting/tests follow the renamed types; both test files moved
  to internal/core/app.
- Deliberate behavior note: a hostViaGraph read failure inside the
  thunk now logs a warning and degrades to 'skipped: no address'
  instead of aborting the whole entity-create tx — a monitoring
  derivation gap is visible (warn log + coverage sweep) and self-heals
  on the next mutation; failing the create over a graph-read blip was
  disproportionate.

Verification: go build/vet, full test suite green (app tests exercise
every buildKind branch at their new home).
2026-08-15 23:13:45 +02:00
..