docs: fix prod proxy setting in bulk download
docs: add API gateway page, drop Cosmos record Split the gateway, edge secret and caller IP sections out of the environment page, then index the five new pages.
docs: trim bulk download, intake, search pages
docs(bulk): fetch concurrency settings, A/B
Document the Front Door edge secret and caller address derivation
docs(bulk-download): read-ahead setting
docs(bulk-download): cancelling a job
docs(bulk-download): zip parts named after content
docs: trusted-proxy quota key and natural sort rollout Claude-Session: https://claude.ai/code/session_01RujmjWGkU1wRpyqnXVnd4T
docs: stale-running threshold comes from host.json Claude-Session: https://claude.ai/code/session_01FRY3ch7WkjHh2SxaRyPgK2
docs: bulk download part sizing, quota slot lifetime, group credentials Claude-Session: https://claude.ai/code/session_01FRY3ch7WkjHh2SxaRyPgK2
docs: add bulk download reference and operations pages Claude-Session: https://claude.ai/code/session_01FRY3ch7WkjHh2SxaRyPgK2