https://librarian-nexus-520904066816.us-west1.run.app/ https://librarian-nexus-520904066816.us-west1.run.app/dashboard https://librarian-nexus-520904066816.us-west1.run.app/docs https://librarian-nexus-520904066816.us-west1.run.app/.well-known/mcp.json https://librarian-nexus-520904066816.us-west1.run.app/server-card.json https://librarian-nexus-520904066816.us-west1.run.app/x402/discovery