2026-08-21 repository consolidation

• Added the FastAPI/PostgreSQL/Caddy server source.
• Added the Windows-friendly Python client and offline tests.
• Added a foreground periodic daemon command with PID/log/backoff behavior.
• Fixed tombstone hashing so local file deletion matches server validation.
• Added the static product website and downloadable client archive.
• Added a localhost-only status dashboard.
• Hardened the dashboard to bind 127.0.0.1, validate Host, remove wildcard CORS and avoid returning token fragments.
• Added generic operations and data-classification documentation.
• Explicitly excluded user memories, raw chats, company project material and all credentials.