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/templates/project-overview-template.md

@@ -1,103 +0,0 @@
-# {{project_name}} - Project Overview
-
-**Date:** {{date}}
-**Type:** {{project_type}}
-**Architecture:** {{architecture_type}}
-
-## Executive Summary
-
-{{executive_summary}}
-
-## Project Classification
-
-- **Repository Type:** {{repository_type}}
-- **Project Type(s):** {{project_types_list}}
-- **Primary Language(s):** {{primary_languages}}
-- **Architecture Pattern:** {{architecture_pattern}}
-
-{{#if is_multi_part}}
-
-## Multi-Part Structure
-
-This project consists of {{parts_count}} distinct parts:
-
-{{#each project_parts}}
-
-### {{part_name}}
-
-- **Type:** {{project_type}}
-- **Location:** `{{root_path}}`
-- **Purpose:** {{purpose}}
-- **Tech Stack:** {{tech_stack}}
-  {{/each}}
-
-### How Parts Integrate
-
-{{integration_description}}
-{{/if}}
-
-## Technology Stack Summary
-
-{{#if is_single_part}}
-{{technology_table}}
-{{else}}
-{{#each project_parts}}
-
-### {{part_name}} Stack
-
-{{technology_table}}
-{{/each}}
-{{/if}}
-
-## Key Features
-
-{{key_features}}
-
-## Architecture Highlights
-
-{{architecture_highlights}}
-
-## Development Overview
-
-### Prerequisites
-
-{{prerequisites}}
-
-### Getting Started
-
-{{getting_started_summary}}
-
-### Key Commands
-
-{{#if is_single_part}}
-
-- **Install:** `{{install_command}}`
-- **Dev:** `{{dev_command}}`
-- **Build:** `{{build_command}}`
-- **Test:** `{{test_command}}`
-  {{else}}
-  {{#each project_parts}}
-
-#### {{part_name}}
-
-- **Install:** `{{install_command}}`
-- **Dev:** `{{dev_command}}`
-  {{/each}}
-  {{/if}}
-
-## Repository Structure
-
-{{repository_structure_summary}}
-
-## Documentation Map
-
-For detailed information, see:
-
-- [index.md](./index.md) - Master documentation index
-- [architecture.md](./architecture{{#if is_multi_part}}-{part_id}{{/if}}.md) - Detailed architecture
-- [source-tree-analysis.md](./source-tree-analysis.md) - Directory structure
-- [development-guide.md](./development-guide{{#if is_multi_part}}-{part_id}{{/if}}.md) - Development workflow
-
----
-
-_Generated using BMAD Method `document-project` workflow_