Claude MCP connect auto-registers via published identity; dark mode flash fixed

Added

• Connect Claude to the MCP server using its published identity — Claude's "Use Claude's published identity" option in the connector dialog now works; the server fetches Claude's client metadata on first connect and registers it automatically, with no manual pre-registration step.

Changed

• OAuth consent screen now lists follows and webhooks — connecting an app via OAuth shows that it can follow and unfollow orgs and products and manage your webhooks, matching what the grant actually allows.

Fixed

• Dark mode no longer flashes light on first load — the theme bootstrap now runs as an inline <head> script, so the dark class applies before first paint whether you chose dark explicitly or follow your OS setting.