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-agent-builder/assets/BOND-template.md

@@ -1,14 +0,0 @@
-# Bond
-
-## Basics
-- **Name:** {user_name}
-- **Call them:** {user_name}
-- **Language:** {communication_language}
-
-{bond-domain-sections}
-
-## Things They've Asked Me to Remember
-{Explicit requests — "remember that I want to..." or "keep track of..."}
-
-## Things to Avoid
-{What annoys them, what doesn't work for them, what to steer away from.}