feat(gateway): include version in User-Agent header

[kilo-code-bot]

Summary

• Changes the kilo-gateway User-Agent header from static opencode-kilo-provider to opencode-kilo-provider/<version> using the KILOCODE_VERSION env var
• Renames USER_AGENT constant to USER_AGENT_BASE and adds getUserAgent() function
• Converts DEFAULT_HEADERS from a static object to getDefaultHeaders() function so the version is resolved at call time
• Updates all internal consumers (provider.ts, provider-debug.ts, modes.ts, models.ts) to use the new function
• Exports getUserAgent and getDefaultHeaders from the package index

[kilo-code-bot]

Code Review Summary

Status: 2 Issues Found | Recommendation: Address before merge

Overview

Severity	Count
CRITICAL	0
WARNING	2
SUGGESTION	0

Issue Details (click to expand)

WARNING

File	Line	Issue
packages/kilo-gateway/src/index.ts	12	Removing DEFAULT_HEADERS from the public entrypoint is a breaking API change for downstream imports.
packages/kilo-gateway/src/index.ts	89	Renaming exported USER_AGENT to USER_AGENT_BASE is a breaking API change for existing consumers.

Other Observations (not in diff)

No additional issues found outside the diff.

Files Reviewed (7 files)

• packages/kilo-gateway/src/api/constants.ts - 0 issues
• packages/kilo-gateway/src/api/models.ts - 0 issues
• packages/kilo-gateway/src/api/modes.ts - 0 issues
• packages/kilo-gateway/src/headers.ts - 0 issues
• packages/kilo-gateway/src/index.ts - 2 issues
• packages/kilo-gateway/src/provider-debug.ts - 0 issues
• packages/kilo-gateway/src/provider.ts - 0 issues

Fix these issues in Kilo Cloud

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_{Reviewed by gpt-5.4-20260305 · 629,380 tokens}