Retire Frontier and Stencil sinks

[ravisuhag]

Context

As part of the sink strategy simplification, Frontier and Stencil sinks should be retired. They are tightly coupled to specific Raystack services and serve niche use cases that the HTTP sink can handle.

Scope

• Deprecate Frontier sink with a notice pointing to the HTTP sink as an alternative
• Deprecate Stencil sink with a notice pointing to the HTTP sink as an alternative
• Remove from default documentation and examples
• Keep code available for one release cycle, then remove

Why

Maintaining dedicated sinks for niche use cases is not justified. The HTTP sink provides a generic escape hatch that covers these use cases. Focus sink investment on the Compass protocol instead.

References

• Meteor Roadmap — Sink Strategy

[ravisuhag]

Update: the Frontier sink has already been removed (plugins/sinks/frontier/ no longer exists). Only the Stencil sink (plugins/sinks/stencil/) remains. Narrowing scope to just retiring Stencil.