feat: Add Go language support and enhance metrics analysis

[askpt]

Introduce support for the Go programming language, including a cognitive complexity analyzer and associated tests. Update documentation to reflect multi-language capabilities, ensuring clarity for users. Clean up code for improved readability in Go metrics tests.

Closes #33

[codecov]

Codecov Report

❌ Patch coverage is 80.06757% with 118 lines in your changes missing coverage. Please review.
✅ Project coverage is 59.17%. Comparing base (0bbfbeb) to head (bb2c415).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/metricsAnalyzer/languages/goAnalyzer.ts	84.11%	85 Missing ⚠️
src/metricsAnalyzer/metricsAnalyzerFactory.ts	42.10%	33 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #113      +/-   ##
==========================================
+ Coverage   50.28%   59.17%   +8.88%     
==========================================
  Files           5        6       +1     
  Lines        1392     1984     +592     
  Branches       82      143      +61     
==========================================
+ Hits          700     1174     +474     
- Misses        692      810     +118     

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[Copilot]

Pull request overview

This PR introduces comprehensive Go language support to the code-complexity extension, enhancing its multi-language capabilities. The implementation follows the established patterns from the existing C# analyzer and includes extensive test coverage.

Key changes:

• Implements a complete Go cognitive complexity analyzer using tree-sitter-go
• Adds comprehensive test coverage with 18+ test suites covering control flow, logical operators, methods, closures, and edge cases
• Updates documentation and adds a detailed Go sample file demonstrating various complexity patterns

Reviewed changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/metricsAnalyzer/languages/goAnalyzer.ts	New Go cognitive complexity analyzer implementing control flow analysis, logical operators, recover calls, closures, and jump statements with detailed documentation
src/metricsAnalyzer/metricsAnalyzerFactory.ts	Integrates Go analyzer into factory with proper line/column normalization from 0-based to 1-based indexing
src/test/metricsAnalyzer/languages/goAnalyzer.test.ts	Comprehensive unit tests (880+ lines) covering all Go language features including methods, goroutines, channels, and edge cases
src/test/metricsAnalyzer/metricsAnalyzerFactory.test.ts	Integration tests for Go language including line normalization validation and real-world code examples
package.json	Adds Go activation event, keywords, and tree-sitter-go dependency
package-lock.json	Locks tree-sitter-go version 0.21.2 with integrity hash
samples/Test.go	Comprehensive Go sample file (261 lines) demonstrating various complexity patterns with inline documentation
README.md	Updates feature list and adds supported languages table showing C# and Go support
.github/copilot-instructions.md	Updates internal documentation to reflect Go support and multi-language architecture

[Copilot]

Pull request overview

Copilot reviewed 10 out of 11 changed files in this pull request and generated 9 comments.

[askpt]

@copilot open a new pull request to apply changes based on the comments in this thread

[Copilot]

@askpt I've opened a new pull request, #116, to work on those changes. Once the pull request is ready, I'll request review from you.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 12 changed files in this pull request and generated 3 comments.

[askpt]

@copilot open a new pull request to apply changes based on the comments in this thread

[Copilot]

@askpt I've opened a new pull request, #118, to work on those changes. Once the pull request is ready, I'll request review from you.

[Copilot]

Pull request overview

Copilot reviewed 10 out of 12 changed files in this pull request and generated no new comments.