vault-mcp-client-cannot-reconnect-mid-session-use-filesystem

If vault-mcp disconnects mid-session, the MCP client will not reconnect even if the container is healthy. The fallback is direct filesystem inspection at /opt/second-brain/vault/ using Bash/Grep/Glob tools. Connectivity can be confirmed via a curl with sufficient timeout (5s was too short; TLS handshake requires more) — container health alone does not guarantee client-side session state.