CMIS compliance/test foundation

examples/cmis/README.md

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+# CMIS Example Fixtures
+
+These fixtures define the expected CMIS behavior before the CMIS adapter is
+implemented. They are grouped by CMIS capability so internal contract tests and
+optional OpenCMIS TCK runs can validate profile behavior consistently.
+
+The fixtures are not a second domain model. They describe how existing
+`kontextual-engine` assets, relationships, versions, policy decisions, audit
+events, and representations should be projected through CMIS access points.
+
+Files:
+
+- `capability-fixtures.json`: capability groups, example object inventory,
+  profile expectations, and unsupported-operation diagnostics.
+