docs(stovepipe): rename project status RFC file

Author: mnoah1

doc/rfc/index.md

@@ -29,7 +29,7 @@ Design documents and technical proposals, grouped by scope. Shared/cross-cutting
 - [Build stage](stovepipe/steps/build.md) - Trigger-only stage and Stovepipe's URI-based BuildRunner contract
 - [Buildsignal stage](stovepipe/steps/buildsignal.md) - Build polling, terminal status persistence, and the handoff to record
 - [Record stage](stovepipe/steps/record.md) - Immutable validation facts keyed by `(queue, uri, project)`, monotonic last-green bookmark advancement and ref promotion, and the deferred hook-event and analyze handoffs
-- [GetProjectStatusByURI API](stovepipe/get-validation-api.md) - Current request lifecycle, whole-repository result, and cursor-paginated project validation results backed by one durable project manifest
+- [GetProjectStatusByURI API](stovepipe/get-project-status-by-uri-api.md) - Current request lifecycle, whole-repository result, and cursor-paginated project validation results backed by one durable project manifest
 
 ## Runway