chore: add .gitignore and project scaffolding

.gitignore

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+# Python
+__pycache__/
+*.py[cod]
+*.egg-info/
+dist/
+*.egg
+.venv/
+venv/
+
+# Node
+node_modules/
+.next/
+dist/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Secrets
+.env
+*.pem
+*.key
+credentials.json
+
+# Docker
+*.log
+
+# Terraform
+.terraform/
+*.tfstate*
+
+# Hermes
+.hermes/cache/
+.hermes/audio_cache/
+
+# Project-specific
+*.db-journal
+*.db-wal

CHANGELOG.md

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+# mcp-servers — CHANGELOG
+
+## 2026-07-16 — Audit Remediation
+
+- Created CHANGELOG.md (missing per project documentation standard)
+- Project directory: `/root/projects/mcp-servers`