feat: Add CIMD support, organization connections, group deletion, refresh token listing; remove AOL/Flickr/Yammer providers

[fern-api]

Summary

Fern SDK regeneration with the following changes:

New Endpoints & Clients

• Organizations Connections- new sub-client with full CRUD (list, create, get, update, delete) for managing connections at the organization level
• Clients- preview_cimd_metadata() and register_cimd_client() for Client ID Metadata Document (CIMD) support; external_client_id filter on list()
• Groups- delete(id) endpoint
• Refresh Tokens -list(user_id, ...) with checkpoint pagination support
• Resource Servers- allow_online_access parameter on create() and update()

Type Changes

• 32 new types added (CIMD validation, password policy options, organization connections, webhook auth headers, network ACL CIDR types)
• 18 types removed- legacy provider cleanup (AOL, Flickr, Yammer)
• 72 types modified- connection options, resource server fields, client metadata, enum updates

Other Changes

• Network ACLs: priority parameter changed from required to optional in create() / update()
• Connection Strategy Enum: removed aol, flickr, yammer (along with miicard, renren, thecity, thecity-sandbox)

[kishore7snehil]

LGTM!