fix(frontier): remove leftover grpc-gateway annotations from PAT model

[AmanGIT07]

Summary

• Removes grpc.gateway.protoc_gen_openapiv2.options.openapiv2_field annotations from the PAT message in models.proto
• These were introduced in feat: add CreateCurrentUserPAT RPC #443 (CreateCurrentUserPAT) but should have been excluded since refactor(frontier): remove grpc-gateway and openapiv2 annotations #444 removed all grpc-gateway annotations
• Keeps google.api.field_behavior = OUTPUT_ONLY annotations on last_used_at, created_at, and updated_at fields

Test plan

• Verify proto files compile without errors
• Confirm no remaining grpc-gateway references in frontier proto files

🤖 Generated with Claude Code

Summary by CodeRabbit

• Refactor
  • Simplified Personal Access Token timestamp field declarations by removing OpenAPI gateway metadata annotations while preserving core field functionality.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: f708be6b-f093-4147-a8c2-cc72b53bea9b

📥 Commits

Reviewing files that changed from the base of the PR and between e7f6f21 and 3d48a81.

📒 Files selected for processing (1)

• raystack/frontier/v1beta1/models.proto

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📝 Walkthrough

Walkthrough

This PR simplifies timestamp field declarations in the PAT message by removing grpc-gateway OpenAPI metadata annotations from four fields (expires_at, last_used_at, created_at, updated_at) while preserving OUTPUT_ONLY field behavior annotations where applicable.

Changes

Cohort / File(s)	Summary
Timestamp Fields Cleanup raystack/frontier/v1beta1/models.proto	Removed grpc-gateway OpenAPI field annotations from four timestamp fields (expires_at, last_used_at, created_at, updated_at) in PAT message, reducing verbose descriptive metadata while preserving OUTPUT_ONLY field behavior annotations.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Possibly related PRs

• refactor(frontier): remove grpc-gateway and openapiv2 annotations #444: Performs identical cleanup of grpc-gateway OpenAPI field annotations from the same timestamp fields in raystack/frontier/v1beta1/models.proto.

Suggested reviewers

• rohilsurana

Poem

🐰 hops with delight
Timestamps trimmed of their metadata dress,
Simpler declarations, nothing less,
Four fields cleaned with a gentle touch,
Protobuf files thank you so much! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and concisely describes the main change: removing grpc-gateway annotations from the PAT model in the frontier package.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/remove-gateway-annotations-pat

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