fix(router): import Bytes for the stream-relay channel type

[slin1237]

Motivation

main's lint lane is currently red: the stream-relay channel in send_typed_request (model_gateway/src/routers/http/router.rs) names bytes::Bytes by full path, which trips the workspace-wide unused_qualifications lint. Every open PR now fails the lint job through no fault of its own.

Modifications

• Import bytes::Bytes in model_gateway/src/routers/http/router.rs and drop the path qualification on the relay channel's type parameter.

Test Plan

• cargo +nightly fmt --all — clean
• cargo clippy -p smg --lib -- -D warnings — clean (previously failed with unnecessary qualification)
• cargo clippy -p smg --all-targets -- -D warnings — clean

One-line type-path change; no behavior difference.

Related Issues

Unblocks the lint lane for all open PRs (first observed on #2138's run).

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: c11244b0-f096-4dbf-814f-47203163c8ff

📥 Commits

Reviewing files that changed from the base of the PR and between c9113ac and abe4b86.

📒 Files selected for processing (1)

• model_gateway/src/routers/http/router.rs

---

📝 Walkthrough

Summary by CodeRabbit

• Refactor
  • Simplified internal type references for the streaming transcription relay.
  • No user-visible behavior changes.

Walkthrough

The HTTP router now imports bytes::Bytes directly and uses the imported type for the streaming multipart transcription relay channel. Runtime behavior remains unchanged.

Changes

Router type cleanup

Layer / File(s)	Summary
Stream relay type import model_gateway/src/routers/http/router.rs	The router imports Bytes and uses it for the stream relay channel payload type.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Mergeability Score: ⚪ Minimal · up to abe4b

This is a localized lint-only cleanup that preserves the existing stream-relay type and runtime behavior; no actionable merge-blocking risk remains after normal checks and review.

Suggested reviewers: catherinesue, key4ng

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the import and type qualification change that fixes the router lint issue.
Description check	✅ Passed	The description directly explains the lint failure, code modification, validation steps, and unchanged behavior.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch fix/relay-channel-lint

---

_{Comment @coderabbitai help to get the list of available commands.}

[claude]

👋 The PR description doesn't fully follow
PULL_REQUEST_TEMPLATE.md:

• Missing header: ## Description
• Missing header: ### Problem
• Missing header: ### Solution
• Missing header: ## Changes

Please update the PR description so reviewers have the context they need.

[claude]

Straightforward lint fix — imports bytes::Bytes and drops the unnecessary path qualification. No behavior change. LGTM.