Update Protos

[github-actions]

• Nightly Proto Update

Auto-generated by create-pull-request

Note

Add bidirectional Subscribe RPC and new message types to MLS proto definitions

• Adds a new MlsApi.Subscribe bidirectional streaming RPC with SubscribeRequest/SubscribeResponse message types, including nested V1 variants for topic mutation, ping/pong liveness, and catchup semantics in mls.pb.go and mls_grpc.pb.go.
• Adds new proto messages for external commit policy (external_commit_policy.pb.go), external invite payloads (external_invite.pb.go), and group membership entries (group_membership.pb.go).
• Adds AppDataUpdateData intent message and ProcessPendingSelfRemove task variant to the database proto layer.
• Extends ComponentMetadata with an ExternalCommitterPermissions field in component_permissions.pb.go.
• Updates OpenAPI Swagger definitions to reflect the new subscribe flow and renames the message API subscribe request schema to xmtpmessage_apiv1SubscribeRequest.

^{Macroscope summarized 252bdce.}

[macroscopeapp]

Approvability

Verdict: Needs human review

Generated proto update adding significant new API surface including a bidirectional Subscribe RPC, external commit policy with symmetric key handling, and new database intent types. Security-sensitive additions and ownership by @xmtp/backend team warrant review by designated code owners.

^{You can customize Macroscope's approvability policy. Learn more.}

Dismissing prior approval to re-evaluate c231d3d