feat：Add getAllProcesses API for retrieving all system processes

[ZA139]

Add getAllProcesses API for retrieving all system processes

📝 Description

This PR introduces a new getAllProcesses() API to retrieve a comprehensive list of all processes currently running on the Windows system, complementing the existing process-related APIs.

✨ Changes

Core Implementation

• New API: getAllProcesses()
  • Retrieves a list of all processes on the system
  • Supports both callback and Promise-based interfaces
  • Supports optional flags for additional data (Memory, CommandLine)
  • Windows-only implementation with proper platform checks

Files Changed

1. lib/index.ts - Core implementation with promisify support

   • Added getAllProcesses() function
   • Added namespace with __promisify__() for Promise support
   • Registered function with promisify.custom symbol

2. lib/promises.ts - Promise wrapper

   • Exported promisified version for async/await usage

3. lib/test.ts - Comprehensive test suite

   • 5 new test cases covering:
     • Native method functionality
     • Callback API interface
     • Promise-based interface
     • Memory flag support
     • CommandLine flag support

4. typings/windows-process-tree.d.ts - Type definitions

   • Added callback-style function signature
   • Added promisify namespace declaration
   • Fixed documentation (set → list)

5. typings/windows-process-tree/promises.d.ts - Promise type definitions

   • Added Promise-based function signature

🎯 Motivation

Background

WMIC is deprecated in Windows 10 (21H1+) and Windows Server 2022+, breaking the Python debugger's attach-to-process functionality.

Solution Strategy

The Python debugger is transitioning from shelling out to external tools (PowerShell/WMIC) to using the native vscode-windows-process-tree package for:

• ✅ Better performance (no subprocess overhead)
• ✅ More reliability (no CLI tool dependencies)
• ✅ Cleaner maintenance

Why getAllProcesses()?

The existing getProcessList(rootPid) requires a root PID parameter. For the Python debugger's process picker, we need to enumerate all processes without PID filtering. This new API fills that gap.

🔗 Related Issues

• Resolves: export getRawProcessList from the module  #28
• Dependency for: Due to wmic has been deprecated. Replace wmic command in attach process with powershell command. vscode-python-debugger#858

🧪 Testing

All tests passing ✅

©Copyright

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[ZA139]

@rzhao271 @Tyriar PTAL 🙏

This PR adds the getAllProcesses() API that resolves #28 and enables the Python debugger's migration away from deprecated WMIC.

Ready for your review when you have time!