Update CLAUDE.md and NOTEBOOK.md for 1.6.0 release

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: respencer-ncl

CLAUDE.md

@@ -698,3 +698,4 @@ Then add to root aggregation: `.aggregate(..., mymodule, mymoduleJS, mymoduleNat
 34. **Schema is in NonDefinitionValues** - Schema extends Leaf (Definition) but is also in the `NonDefinitionValues` union type. Its match case in `ValidationPass.process()` must appear BEFORE `case _: NonDefinitionValues`. Similarly, Relationship extends Leaf and must be matched before `case _: Definition`
 35. **CheckMessagesTest .check file format** - Lines starting with space are continuation lines appended to the previous entry (with `\n`). Non-space-starting lines begin new entries. Multi-line messages (like overloaded warnings) must not have new entries inserted mid-continuation
 36. **Streamlet shape validation guards on nonEmpty** - Empty streamlets (`{ ??? }`) should not be checked for inlet/outlet counts since they're placeholders. Use `streamlet.nonEmpty` guard before shape checks
+37. **Publishing workflow** - Tag with `git tag -a X.Y.Z -m "Release X.Y.Z"`, push tag, then `sbt clean test publish`. All modules publish to GitHub Packages across JVM, JS, and Native platforms. Version is derived from the git tag by sbt-dynver

NOTEBOOK.md

@@ -16,6 +16,13 @@ All workflow paths updated to `scala-3.7.4`.
 `FlattenPass`, multi-platform release workflow. Native macOS ARM64
 binary distributed via Homebrew.
 
+**Release 1.6.0 Published**: ValidationPass bug fixes and new
+validations. Fixed SagaStep undo check, SagaStep shape check,
+duplicate checkMetadata. Added validation for Schema, Relationship,
+Streamlet shape/handler, Adaptor/Repository handler requirements,
+Projector repo ref, Epic/UseCase user ref, Function input/output
+types. 1,526 tests pass (0 failures). Published to GitHub Packages.
+
 **Release 1.5.0 Published**: Extracted cross-platform `RiddlLib`
 trait from JS-only `RiddlAPI`. `RiddlAPI` is now a thin JS facade
 delegating to `RiddlLib`. `parseString` returns opaque Root handle;