claude: back up custom skills, memory, and settings with symlink pattern

The ~/.claude/ directory was previously local-only — a machine wipe
would have lost the accumulated memory, custom skills, and settings.
This commit moves the durable parts into dotfiles with the same
symlink-to-home pattern used for CLAUDE.md, PENDING.md, REVIEWED.md,
and L2-BOOTSTRAP.md.

Preserved (symlinked from ~/.claude/* into here):
  skills/audit/              — thinking-folder drift scanner
  skills/symmetria/          — practice-of-return discipline
  skills/vault-update-people/ — Obsidian People-file maintainer
  skills/wake-up/            — session restoration
  skills/wrap-up/            — session state capture
  memory/                    — 55+ memory files (MEMORY.md, sessions,
                               ledgers, project state, feedback, etc.)
  settings/settings.json     — user preferences (hooks, flags, no secrets)

Deliberately NOT backed up:
  settings.local.json   — contains operational secrets (HF_TOKEN,
                           SSH password in expect scripts); by naming
                           convention, *.local.* is not synced.
                           Needs separate review and probable rotation.
  sessions/, history.jsonl, caches, telemetry — ephemeral
  plugins/, marketplace skills and agents — reinstallable

The working copies at ~/.claude/skills/* and
~/.claude/projects/-Users-davidglidden/memory are symlinks into this
directory, so every write flows here automatically. install.sh
recreates the symlinks on a fresh machine.

FOLLOW-ON (flagged, not in this commit):
  settings.local.json contains a HuggingFace token and an SSH password
  as plaintext strings inside allowed Bash command patterns. These
  should be rotated and moved to secure storage (keychain / pass /
  env file outside the settings file).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

claude/memory/cabaret-project.md

@@ -0,0 +1,13 @@
+---
+name: Cabaret Project
+description: New artistic project — contemporary cabaret in Barcelona, Paris-Vienna-Barcelona triangle, Pierrot Lunaire as anchor work, interdisciplinary collective
+type: project
+---
+
+David is developing a cabaret project — a registration and contemporary adaptation of the European cabaret tradition (Paris → Vienna → Barcelona, 1880s–1930s). Stem-cell phase as of 2026-04-04.
+
+**Why:** The times require satire, social commentary, and the physical reunion of people. The cabaret form was built for this.
+
+**How to apply:** This is a long-horizon artistic project, not blocking anything else. Vault location: `06. Projects/Cabaret/` (Obsidian). Two founding documents created: raw Claude.app transcript and founding document with full architectural sketch. When David mentions cabaret, Pierrot, the collective, or intimate performance — this is the context.
+
+Key elements: Pierrot Lunaire on gut strings (psychoacoustic argument, not authenticity), 40-50 seat intimate space in Barcelona (Gràcia), interdisciplinary collective (not ensemble), male Rezitant (countertenor hypothesis), ritual container / secular liturgy framing. Access to Larry Schoenberg and Jordi Savall's networks.