Update documentation for simplified responsibilities

docs/roadmap/responsibility-simplification.md

@@ -9,13 +9,14 @@ library's substantive feature set and selected ownership boundaries.
 This roadmap captures the target state and work arising from the accepted
 [responsibility audit](audit/A1-responsibility.md). Findings 1–7 are selected
 for remediation; finding 8 selects preservation of runtime input behavior.
-All significant decisions are settled. Implementation is pending.
+The selected implementation is delivered; final combined validation and
+repository hygiene checks remain pending.
 
-The current baseline is `f660b6e`. The production code remains at the audited
-`1ff6d77` baseline; subsequent commits record the audit and accepted decisions.
-The audit owns evidence and decision rationale; this document owns the selected
-target and delivery scope. The [implementation plan](implementation.md) owns the
-ordered stages and validation for this work. The older
+The work began from the `f660b6e` decision baseline and production audit
+baseline `1ff6d77`. The audit owns historical evidence and decision rationale;
+this document owns the selected target and delivery scope. The
+[implementation plan](implementation.md) records implementation and validation.
+The older
 [audit remediation](audit-remediation.md) describes an earlier completed sprint;
 its previous plan is retained in Git history, not the current implementation plan.
 
@@ -46,14 +47,17 @@ throughput, complexity, or numerical-precision guarantees.
 
 ## Selected Work
 
+The following sections record the accepted work and its rationale. The target
+above is implemented; final combined checks are tracked in the implementation
+plan rather than inferred from the audit's baseline tests.
+
 ### Resolved Targets And Direct Wire Construction
 
 **Audit findings:** 1–2.
 
-The [LLM adapter](../../internal/llm/openai_compatible_client.go) currently stores
-constructor-level endpoint/model defaults that engine assembly never supplies.
-It also creates a root wire struct solely to project it into the map actually
-encoded for transport.
+At the audit baseline, the [LLM adapter](../../internal/llm/openai_compatible_client.go)
+stored constructor-level endpoint/model defaults that engine assembly never
+supplied, and built an intermediate root wire struct before encoding.
 
 Retire those constructor settings, stored fallback state, and fallback branches.
 Backend/profile/request resolution remains the owner of target selection. Keep