release: 0.2.0

Move the review pass and Amazon Bedrock support from [Unreleased] to
0.2.0 in the changelog, retitle the release notes and the README status
paragraph. Version strings come from git describe, so no code changes.

CHANGELOG.md

@@ -4,6 +4,12 @@ All notable changes to Noema are recorded here. Format follows Keep a Changelog;
 
 ## [Unreleased]
 
+Nothing yet.
+
+## [0.2.0] - 2026-09-15
+
+Epistemic honesty review pass (PLAN.md §7, summarised in docs/epistemics.md) and Amazon Bedrock support.
+
 ### Security
 - Archives never import policy rules; forks keep them. The omission is audited.
 - NUL bytes in any request path, query or body are refused with a 400 at the edge instead of surfacing as a database error.