Adds a 6-phase skill that scaffolds the PKM system onto existing Obsidian
vaults: scan structure, map folders, personalize, generate config, scaffold
missing pieces, and verify. Replaces hardcoded folder paths in hooks with
env var lookups (${VAR:-Default}) so adopted vaults with custom folder names
work correctly while template-based vaults remain unaffected.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
