fix(protoc-gen-http-swagger): resolve staticcheck lint errors

[spencercjh]

What type of PR is this?

fix

Check the PR title.

• This PR title match the format: <type>(optional scope): <description>
• The description of this PR title is user-oriented and clear enough for others to understand.
• Attach the PR updating the user documentation if the current PR requires user awareness at the usage level. User docs repo

(Optional) Translate the PR title into Chinese.

fix(protoc-gen-http-swagger): 修复 staticcheck lint 错误

(Optional) More detailed description for this PR(en: English/zh: Chinese).

en: Fix the same staticcheck issues that were addressed in protoc-gen-rpc-swagger but missed in protoc-gen-http-swagger. This is a supplement to PR #18.

• QF1003: use tagged switch instead of if/else-if chain
• SA4001: remove redundant *& dereference

zh(optional): 修复 protoc-gen-rpc-swagger 中已处理但 protoc-gen-http-swagger 中遗漏的 staticcheck 问题，作为 PR #18 的补充。

• QF1003: 使用 tagged switch 替代 if/else-if 链
• SA4001: 移除多余的 *& 解引用

(Optional) Which issue(s) this PR fixes:

Supplements #18

(optional) The PR that updates user documentation:

N/A

[Copilot]

Pull request overview

This PR addresses staticcheck findings across the Swagger generators and updates CI linting to run staticcheck consistently.

Changes:

• Refactors conditional chains into tagged switch statements to satisfy staticcheck QF1003.
• Removes redundant *& dereference to satisfy staticcheck SA4001.
• Updates GolangCI-Lint configuration and the PR-check GitHub Actions workflow (checkout/action versions, runner image, lint args).

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
thrift-gen-http-swagger/generator/openapi_gen.go	Replaces if/else chain with tagged switch when selecting document options.
protoc-gen-rpc-swagger/generator/reflector.go	Uses tagged switch for well-known message naming and removes redundant dereference for enum schema generation.
protoc-gen-http-swagger/generator/reflector.go	Same staticcheck-driven refactors as rpc-swagger reflector.
.golangci.yaml	Migrates to a v2 config layout, explicitly enabling a smaller linter set including staticcheck.
.github/workflows/pr-check.yml	Moves PR checks to ubuntu-latest, bumps action versions, and updates golangci-lint invocation.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.