refactor(proto): regenerate protos after gateway annotations removed

[whoAbhishekSah]

Summary

• Updates PROTON_COMMIT in Makefile to d93715a which removes all openapiv2 and google.api.http annotations from frontier proto files
• Regenerated Go proto files are ~4,000 lines smaller since the openapiv2 metadata is no longer embedded
• These annotations were only used by the now-removed gRPC-gateway server (removed in refactor(server): remove gRPC and gRPC-gateway server implementation #1404)

Context

This PR depends on proton#444 being merged first. Once proton#444 is merged, the PROTON_COMMIT should be updated to the merge commit SHA on main.

Test plan

• make proto succeeds
• go build ./... passes
• make test passes (all unit tests green)

🤖 Generated with Claude Code

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Project	Deployment	Actions	Updated (UTC)
frontier	Ready	Preview, Comment	Mar 3, 2026 7:36am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

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Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0ee8229 and 6223be0.

📒 Files selected for processing (1)

• Makefile

🚧 Files skipped from review as they are similar to previous changes (1)

• Makefile

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📝 Walkthrough

Summary by CodeRabbit

• Chores
  • Updated the build tooling to use a newer Proton release for protobuf generation, ensuring proto artifacts are produced with the latest upstream fixes and improvements. This is a non-functional infra change that may affect reproducible builds and proto outputs but does not alter application behavior.

Walkthrough

The Makefile's PROTON_COMMIT variable was changed from commit 330c7558f34570056814d418f99730fb45cfe80f to f8f6cd5b271d387cb99847a87b02a873df5b00ea, altering which Proton archive is downloaded for protobuf generation.

Changes

Cohort / File(s)	Summary
Makefile Version Update Makefile	Changed PROTON_COMMIT from 330c7558f34570056814d418f99730fb45cfe80f to f8f6cd5b271d387cb99847a87b02a873df5b00ea, updating the Proton commit used for proto generation.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

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[coveralls]

Pull Request Test Coverage Report for Build 22613025940

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 39.848%

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Totals
Change from base Build 22563274072:	0.0%
Covered Lines:	13595
Relevant Lines:	34117

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💛 - Coveralls