docs: remove retired architecture references

AGENTS.md

@@ -12,7 +12,7 @@ This repository owns the reusable PHP release engine used by LibreCode/LibreSign
 - Do not add a parallel Python release engine.
 - Consumer-specific paths and naming belong in versioned consumer configuration.
 
-Authoritative cross-repository contracts are tracked in LibreCodeCoop/github-workflows#70, #78 and #82 until fully represented here.
+Authoritative release behavior, public Action contracts, persisted schemas, and architecture are documented and tested in this repository. Organization workflow templates are maintained separately in `LibreCodeCoop/.github` and must remain orchestration-only consumers of this product.
 
 ## Generated artifacts
 

docs/versioning.md

@@ -40,12 +40,12 @@ After 1.0, semantic versioning applies normally:
 Public compatibility covers:
 
 - the documented CLI behavior used by consumers;
-- inputs and outputs of `actions/prepare`, `actions/post-merge`, and `actions/publication`;
+- inputs and outputs of every documented public Action under `actions/`, including lifecycle and purpose-specific Actions;
 - persisted release contracts whose schema is documented and consumed across lifecycle stages.
 
 Internal PHP classes, private scripts under `actions/_internal`, and implementation details are not public APIs.
 
-A change to a public Action input/output or persisted contract must update tests and documentation in the same change. Internal helper refactors do not create a supported public Action path.
+A change to a public Action input/output or persisted contract must update tests and documentation in the same change. The explicit public Action surface is tested by the acceptance suite; directories under `actions/_internal` remain implementation details and are not supported integration paths.
 
 ## Release procedure