feat(golang): Go file detection and tree-sitter-go parsing (PR-01)

[shivasurya]

Summary

• Add .go file detection in getFiles() and isGoSourceFile() utility
• Integrate tree-sitter-go language binding for AST parsing
• Add directory skipping for vendor/, testdata/, _* dirs
• Add test fixture: simple Go project with multi-package layout

Test plan

• isGoSourceFile("main.go") returns true; isGoSourceFile("main.py") returns false
• getFiles() discovers all .go files in fixture project
• getFiles() excludes vendor/ and testdata/ directories
• graph.Initialize() completes without error on Go project
• Mixed .py + .go project: Python parsing unaffected
• gradle buildGo compiles without errors
• gradle testGo passes all tests
• gradle lintGo reports zero lint findings

🤖 Generated with Claude Code

[safedep]

SafeDep Report Summary

No dependency changes detected. Nothing to scan.

_{This report is generated by SafeDep Github App}

[github-actions]

Code Pathfinder Security Scan

No security issues detected.

Metric	Value
Files Scanned	8
Rules	38

---

_{Powered by Code Pathfinder}

[codecov]

Codecov Report

❌ Patch coverage is 97.22222% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 82.78%. Comparing base (bb9bd01) to head (94e6bc1).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sast-engine/graph/parser.go	92.85%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #520      +/-   ##
==========================================
+ Coverage   82.75%   82.78%   +0.03%     
==========================================
  Files         122      122              
  Lines       14321    14345      +24     
==========================================
+ Hits        11851    11876      +25     
  Misses       2021     2021              
+ Partials      449      448       -1     

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[shivasurya]

• feat(mcp): Add foundational Go language support to MCP server #530
• feat(golang): Add Go security rules and rule manifest #529
• feat(golang): Scan & CI pipeline routing (PR-09) #528
• feat(golang): Implement Go call graph construction (PR-08) #527
• feat(golang): Go module registry and import resolution (PR-07) #526
• feat(golang): Implement calls, closures, and control flow statements (PR-06 complete) #525
• feat(golang): Go variable, constant, and assignment parsing (PR-05) #524
• feat(golang): Go type definitions parsing (PR-04) #523
• feat(golang): Go function and method declaration parsing (PR-03) #522
• feat(golang): Go AST helper functions and parser scaffold (PR-02) #521
• feat(golang): Go file detection and tree-sitter-go parsing (PR-01) #520 👈 (View in Graphite)
• main

This stack of pull requests is managed by Graphite. Learn more about stacking.

[shivasurya]

Merge activity

• Feb 15, 4:00 AM UTC: A user started a stack merge that includes this pull request via Graphite.
• Feb 15, 4:00 AM UTC: @shivasurya merged this pull request with Graphite.