Summary

• move the canonical proto to proto/openengine/v1/openengine.proto so its filesystem path matches package openengine.v1
• remove the PACKAGE_DIRECTORY_MATCH lint exception and update every repository link and generation command
• replace orchestrator terminology with client or distributed framework across proto comments and documentation
• document direct OpenEngine clients alongside the primary distributed-framework use case
• replace inaccurate existing-implementation claims with an explicit pre-adoption implementation status
• completely remove Buf breaking-change configuration and CI enforcement for the current experimental phase

Why

OpenEngine has no adopters yet, so the repository should use the conventional package layout and describe its actual supported client models before implementations depend on either. Breaking-change enforcement is intentionally deferred while revision 1 is still being designed; Buf build, formatting, and linting remain enforced.

Validation

• buf build
• buf lint with PACKAGE_DIRECTORY_MATCH enabled
• buf format --diff --exit-code
• protoc descriptor and Python path generation
• GitHub GFM rendering for README.md, docs/motivation.md, and docs/api.md
• local link, stale path, and terminology scans
• git diff --check