Add audited application resolution

docs/roadmap/implementation.md

@@ -2,7 +2,7 @@
 
 ## Status and ownership
 
-Status: implementation in progress; Stages 1–7 are complete and later stages are
+Status: implementation in progress; Stages 1–8 are complete and later stages are
 pending.
 
 Audience: a `gpt-5.6-terra` coding agent implementing one stage per prompt, in
@@ -684,7 +684,36 @@ Acceptance:
 
 ## Stage 8 — Implement recorded application resolution
 
-Status: pending.
+Status: complete.
+
+Completion evidence (2026-09-06):
+
+- Implemented per-load `Resolution`, `IsExplicit`, `Record`, `Default`, `Normalize`,
+  `Error`, and `Warning` in [`resolution.go`](../../resolution.go), and enabled the
+  resolver in `Load` after successful decode while leaving semantic validation gated.
+- Added schema-aware path/kind/dependency checks, safe reason requirements, dynamic
+  and typed helper projection, final helper/path consistency checks, before/after
+  structural comparison, exact/ancestor record coverage, and distinct safe failures
+  for invalid values, targets, records, and unrecorded changes.
+- Coalesced repeated path intent deterministically, retaining unique reasons and
+  dependencies, using the last helper value, and promoting mixed operations to
+  normalization. Equal-valued derived intent remains recorded; map copy/writeback,
+  container coverage, deletions, and new dynamic/map descendants are supported.
+- Integrated resolution origins and history without changing surviving input
+  explicitness, retained private detached before/after snapshots, sorted records by
+  semantic path, and made retained callback-context use panic with fixed value-free
+  text. Resolver errors are suppressed unless explicitly reported through the
+  context; warnings remain on successful results. The
+  [current resolution contract](../config.md#recorded-application-resolution) owns
+  this behavior.
+- Focused tests execute the timeout/artifact consumer shape, explicit null/zero and
+  absent-baseline behavior, normalization, map writeback, equal and repeated helper
+  intent, stable map-derived record order, subtree removal, snapshot detachment,
+  unrelated targets, invalid paths/kinds/values, unrecorded mutation, safe hook
+  failures, and closed resolution/version contexts. Verified `go test ./...`,
+  `go test -race ./...`, `go vet ./...`, `go build ./...`, `go mod tidy -diff`, and
+  `git diff --check` with Go 1.26.7 on linux/amd64. No deviations were required;
+  semantic validation remains later work.
 
 Read: feature [resolution callbacks](initial.md#resolution-and-validation-callbacks).