feat: add golangci-lint linter integration with v2.x support (#51)

* feat: add golangci-lint linter core implementation

- Implement Linter interface for golangci-lint
- Add binary download and installation from GitHub releases
- Support cross-platform detection (Linux, macOS, Windows)
- Handle tar.gz and zip extraction based on platform
- Implement execution logic with JSON output format
- Parse golangci-lint JSON output to Violation structs
- Handle exit code 1 as success (violations found)
- Create temporary config file management

* feat: add golangci-lint rule converter with LLM integration

- Implement Converter interface for golangci-lint
- Add LLM-based rule to linter mapping
- Generate .golangci.yml YAML configuration
- Support 9 rule categories (bugs, style, performance, etc.)
- Include comprehensive linter list in LLM prompt
- Validate linter names and generated configuration

* feat: register golangci-lint in global linter registry

- Add register.go with init() function
- Update bootstrap.go with blank import
- Integrate with Symphony CLI linter system

* test: add comprehensive unit tests for golangci-lint

- Add linter_test.go with platform detection tests
- Add parser_test.go with JSON parsing tests
- Add converter_test.go with YAML generation tests
- Achieve >80% code coverage
- Test cross-platform compatibility
- Test error handling and edge cases

* chore: update dependencies for golangci-lint support

- Run go mod tidy
- Ensure gopkg.in/yaml.v3 is available

* fix: update golangci-lint command format in executor

- Change output format flag from --out-format to --format in the golangci-lint command.
- Ensure compatibility with the latest golangci-lint version.

* refactor: enhance golangci-lint integration with formatter support

* style: fix goimports formatting

Author: yessjun

cmd/sym/bootstrap.go

@@ -6,6 +6,7 @@ import (
 	// that registers the linter with the global registry.
 	_ "github.com/DevSymphony/sym-cli/internal/linter/checkstyle"
 	_ "github.com/DevSymphony/sym-cli/internal/linter/eslint"
+	_ "github.com/DevSymphony/sym-cli/internal/linter/golangcilint"
 	_ "github.com/DevSymphony/sym-cli/internal/linter/pmd"
 	_ "github.com/DevSymphony/sym-cli/internal/linter/prettier"
 	_ "github.com/DevSymphony/sym-cli/internal/linter/pylint"

go.mod

@@ -12,6 +12,7 @@ require (
 	github.com/modelcontextprotocol/go-sdk v1.1.0
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
@@ -28,5 +29,4 @@ require (
 	golang.org/x/oauth2 v0.30.0 // indirect
 	golang.org/x/sys v0.38.0 // indirect
 	golang.org/x/text v0.4.0 // indirect
-	gopkg.in/yaml.v3 v3.0.1 // indirect
 )