Initial commit - NUC server configuration and docs

- CLAUDE.md: Server instructions and service reference
- docs/: Persistent documentation (architecture, guides)
- .artifacts/: Session-generated notes
- playwriter-browser/: Remote browser container config

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1,27 @@
+# Ignore sensitive files
+*.key
+*.pem
+secrets/
+.env
+
+# Sensitive artifacts (tokens, credentials)
+.artifacts/*-token*.md
+.artifacts/*-api-token*.md
+.artifacts/wireguard*.conf
+
+# Claude session files
+.claude/
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Editor files
+*.swp
+*.swo
+*~
+
+# Temporary files
+*.tmp
+*.log
+tmp/