chore: clean up repo for public release

- Remove BMAD framework, IDE configs, dev screenshots, test files,
  internal docs, and backup files
- Rename keep-notes/ to memento-note/
- Update all references from keep-notes to memento-note
- Add Apache 2.0 license with Commons Clause (non-commercial restriction)
- Add clean .gitignore and .env.docker.example

.agent/skills/bmad-cis-design-thinking/template.md

@@ -1,111 +0,0 @@
-# Design Thinking Session: {{project_name}}
-
-**Date:** {{date}}
-**Facilitator:** {{user_name}}
-**Design Challenge:** {{design_challenge}}
-
----
-
-## 🎯 Design Challenge
-
-{{challenge_statement}}
-
----
-
-## 👥 EMPATHIZE: Understanding Users
-
-### User Insights
-
-{{user_insights}}
-
-### Key Observations
-
-{{key_observations}}
-
-### Empathy Map Summary
-
-{{empathy_map}}
-
----
-
-## 🎨 DEFINE: Frame the Problem
-
-### Point of View Statement
-
-{{pov_statement}}
-
-### How Might We Questions
-
-{{hmw_questions}}
-
-### Key Insights
-
-{{problem_insights}}
-
----
-
-## 💡 IDEATE: Generate Solutions
-
-### Selected Methods
-
-{{ideation_methods}}
-
-### Generated Ideas
-
-{{generated_ideas}}
-
-### Top Concepts
-
-{{top_concepts}}
-
----
-
-## 🛠️ PROTOTYPE: Make Ideas Tangible
-
-### Prototype Approach
-
-{{prototype_approach}}
-
-### Prototype Description
-
-{{prototype_description}}
-
-### Key Features to Test
-
-{{features_to_test}}
-
----
-
-## ✅ TEST: Validate with Users
-
-### Testing Plan
-
-{{testing_plan}}
-
-### User Feedback
-
-{{user_feedback}}
-
-### Key Learnings
-
-{{key_learnings}}
-
----
-
-## 🚀 Next Steps
-
-### Refinements Needed
-
-{{refinements}}
-
-### Action Items
-
-{{action_items}}
-
-### Success Metrics
-
-{{success_metrics}}
-
----
-
-_Generated using BMAD Creative Intelligence Suite - Design Thinking Workflow_