feat: Add support for JS callgraph processing

[abhisek]

• feat: Add support for Javascript callgraph
• fix: Handle arrow and module funcs in JS

[safedep]

SafeDep Report Summary

Package Details

Package	Malware	Vulnerability	Risky License	Report

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[Copilot]

Pull Request Overview

This PR adds comprehensive JavaScript callgraph processing support to the existing callgraph plugin. It extends the system to handle JavaScript-specific constructs while reusing the common processing infrastructure.

Key changes:

• Adds JavaScript language support with specialized processors for JS-specific node types
• Refactors Go-specific processors to be language-agnostic wrappers that route to appropriate language handlers
• Implements module-level call tracking for JavaScript through enhanced expression statement processing

Reviewed Changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
plugin/callgraph/plugin.go	Adds JavaScript to supported languages list
plugin/callgraph/processors.go	Main implementation adding JS processors and refactoring language-specific routing
plugin/callgraph/plugin_test.go	Comprehensive test case for JavaScript callgraph functionality
plugin/callgraph/fixtures/testJavascript.js	Test fixture demonstrating various JavaScript constructs
.tool-versions	Updates Go version from 1.24.3 to 1.25.1

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 66.94561% with 158 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.18%. Comparing base (6ce4992) to head (55bf15c).

Files with missing lines	Patch %	Lines
plugin/callgraph/processors.go	70.61%	84 Missing and 25 partials ⚠️
plugin/callgraph/callgraph.go	31.25%	25 Missing and 8 partials ⚠️
plugin/callgraph/assignment.go	85.36%	5 Missing and 1 partial ⚠️
plugin/callgraph/signatures.go	33.33%	4 Missing and 2 partials ⚠️
plugin/callgraph/plugin.go	55.55%	3 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #44      +/-   ##
==========================================
+ Coverage   57.40%   60.18%   +2.77%     
==========================================
  Files          47       47              
  Lines        4843     5289     +446     
==========================================
+ Hits         2780     3183     +403     
- Misses       1824     1827       +3     
- Partials      239      279      +40     

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[Copilot]

Pull Request Overview

Copilot reviewed 12 out of 12 changed files in this pull request and generated 2 comments.

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