Complete artist workspace scaffold with directories, context files, memory system, and environment setup.

• Creates a standardized folder structure including context, memory, songs, releases, content, config, library, and apps directories with README guides for each
• Initializes context files (artist identity, audience insights, era metadata) and a scoped memory system that distinguishes between permanent, era-specific, and session-level knowledge
• Sets up environment and services configuration files with templates, adding credentials and integrations only when real information is available rather than pre-filling placeholders
• Updates the RECOUP.md marker file from not-setup to active and generates a root README with setup checklist and directory reference tables