Initial scaffold

Promoted from ~/claude/ideas/rimlike after a single multi-hour brainstorm
session. memory.md distilled from plan.md; companion design / architecture /
ui / art docs preserved under docs/.

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

.gitignore

@@ -0,0 +1,42 @@
+# Secrets — never commit
+.env
+.env.*
+!.env.example
+*.pem
+*.key
+*.p12
+*.pfx
+secrets/
+credentials/
+.aws/
+.ssh/
+
+# Dependencies / build artifacts
+node_modules/
+__pycache__/
+*.py[cod]
+.venv/
+venv/
+env/
+dist/
+build/
+target/
+*.egg-info/
+
+# Editor / OS noise
+.DS_Store
+Thumbs.db
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# Logs / caches
+*.log
+.cache/
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+coverage/
+.coverage
+.nyc_output/