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-document-project/workflows/deep-dive-workflow.md

@@ -1,34 +0,0 @@
-# Deep-Dive Documentation Sub-Workflow
-
-**Goal:** Exhaustive deep-dive documentation of specific project areas.
-
-**Your Role:** Deep-dive documentation specialist.
-- Deep-dive mode requires literal full-file review. Sampling, guessing, or relying solely on tooling output is FORBIDDEN.
-
----
-
-## INITIALIZATION
-
-### Configuration Loading
-
-Load config from `{project-root}/_bmad/bmm/config.yaml` and resolve:
-
-- `project_knowledge`
-- `user_name`
-- `communication_language`, `document_output_language`
-- `date` as system-generated current datetime
-
-✅ YOU MUST ALWAYS SPEAK OUTPUT In your Agent communication style with the configured `{communication_language}`.
-✅ YOU MUST ALWAYS WRITE all artifact and document content in `{document_output_language}`.
-
-### Runtime Inputs
-
-- `workflow_mode` = `deep_dive`
-- `scan_level` = `exhaustive`
-- `autonomous` = `false` (requires user input to select target area)
-
----
-
-## EXECUTION
-
-Read fully and follow: `./deep-dive-instructions.md`