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-workflow-builder/references/template-substitution-rules.md

@@ -1,35 +0,0 @@
-# Template Substitution Rules
-
-The SKILL-template provides a minimal skeleton: frontmatter, overview, and activation with config loading. Everything beyond that is crafted by the builder based on what was learned during discovery and requirements phases.
-
-## Frontmatter
-
-- `{module-code-or-empty}` → Module code prefix with hyphen (e.g., `bmb-`) or empty for standalone. The `bmad-` prefix is reserved for official BMad creations; user skills should not include it.
-- `{skill-name}` → Skill functional name (kebab-case)
-- `{skill-description}` → Two parts: [5-8 word summary]. [trigger phrases]
-
-## Module Conditionals
-
-### For Module-Based Skills
-
-- `{if-module}` ... `{/if-module}` → Keep the content inside
-- `{if-standalone}` ... `{/if-standalone}` → Remove the entire block including markers
-- `{module-code}` → Module code without trailing hyphen (e.g., `bmb`)
-- `{module-setup-skill}` → Name of the module's setup skill (e.g., `mymod-setup`)
-
-### For Standalone Skills
-
-- `{if-module}` ... `{/if-module}` → Remove the entire block including markers
-- `{if-standalone}` ... `{/if-standalone}` → Keep the content inside
-
-## Beyond the Template
-
-The builder determines the rest of the skill structure — body sections, phases, stages, scripts, external skills, headless mode, role guidance — based on the skill type classification and requirements gathered during the build process. The template intentionally does not prescribe these; the builder has the context to craft them.
-
-## Path References
-
-All generated skills use paths relative to skill root (cross-directory) or `./` (same-folder):
-
-- `references/{reference}.md` — Reference documents loaded on demand
-- `references/{stage}.md` — Stage prompts (complex workflows)
-- `scripts/` — Python/shell scripts for deterministic operations