CMIS compliance/test foundation

tests/cmis/opencmis-tck/README.md

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+# Optional OpenCMIS TCK Harness
+
+This directory reserves the integration-test boundary for Apache Chemistry
+OpenCMIS TCK 1.1.0. The harness is intentionally optional because Java/Maven
+tooling is not part of the default Python test suite.
+
+Planned invocation shape:
+
+```sh
+mvn -Dcmis.browser.url=http://127.0.0.1:8000/cmis/compat-tck/browser \
+  -Dcmis.repository.id=kontextual-compat-tck \
+  test
+```
+
+The first target is a selected Browser Binding subset:
+
+- repository information,
+- type definitions,
+- navigation,
+- object reads,
+- content stream reads,
+- query subset,
+- relationships,
+- change log where supported.
+
+Mutation groups should only be enabled for `governed-authoring` or
+`compat-tck` profiles after the policy and audit gates are implemented.
+