feat(http): add cors flags

[youen]

No description provided.

[Copilot]

Pull Request Overview

Adds configurable CORS support to the lino http sub-command, allowing users to enable CORS and specify allowed origins, methods, and headers.

• Introduce --enable-cors, --cors-origins, --cors-methods, and --cors-headers flags and wrap the HTTP handler in CORS middleware when enabled
• Add github.com/rs/cors dependency in go.mod
• Document the new flags in README.md and record the feature in CHANGELOG.md

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 1 comment.

File	Description
internal/app/http/cli.go	Added CORS flags and conditional middleware wrap
go.mod	Added github.com/rs/cors dependency
README.md	Documented HTTP sub-command and CORS configuration
CHANGELOG.md	Logged new CORS feature under version 3.3.0

Comments suppressed due to low confidence (3)

internal/app/http/cli.go:76

• New CORS logic is introduced but no tests have been added to verify CORS headers. Consider adding unit or integration tests to confirm proper CORS responses when enabled.

if enableCORS {

README.md:607

• Duplicate "### CORS Configuration" heading found on lines 603 and 607; remove the redundant section to avoid confusion.

### CORS Configuration

internal/app/http/cli.go:77

• [nitpick] The variable name c is ambiguous; consider renaming it to corsHandler or corsMiddleware for improved clarity.

c := cors.New(cors.Options{