examples of custom modules, custom module and readme doc updates

docs/sample-custom-modules/sample-wellness-module/workflows/guided-meditation/README.md

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+# Guided Meditation Workflow
+
+## Purpose
+
+Full meditation session experience with various techniques and durations.
+
+## Trigger
+
+GM (from Meditation Guide agent)
+
+## Key Steps
+
+1. Set intention for practice
+2. Choose meditation type and duration
+3. Get comfortable and settle in
+4. Guided practice
+5. Gentle return to awareness
+6. Reflection and integration
+7. Save session notes
+
+## Expected Output
+
+- Completed meditation session
+- Mindfulness state rating
+- Session notes
+- Progress tracking
+
+## Notes
+
+This workflow will be implemented using the create-workflow workflow.
+Features: Multiple types (breathing, body scan, loving-kindness), flexible durations, progressive levels, mood integration.