feat: implement python dependency lifecycle and reference counting

[AshokThangavel]

Overview

This PR introduces a robust Python library management system for the IPM (InterSystems Package Manager). It transitions the system to a state-aware lifecycle manager that tracks library ownership, handles local wheel files, and ensures a clean environment during module uninstallation.

fixed: #1006

Key Implementations

• -with-py Modifier: New opt-in flag for uninstall. By default, Python libraries are preserved. Physical removal only occurs when -with-py is explicitly called.
• Reference Counting: Created %IPM.Storage.PythonReference to track library usage across the instance.
• RefCount - Prevents "Dependency Breaking": A library is only physically uninstalled when its RefCount reaches 0, meaning no other installed module requires it.
• Physical pip uninstall triggers only when RefCount reaches 1 (the final module using it).

Execution Sample (Verbose Mode)

zpm:USER>uninstall demo-module2 -with-py -v

[USER|demo-module2]     Clean START
[USER|demo-module2]     Unconfigure START
[USER|demo-module2]     Unconfigure SUCCESS
[USER|demo-module2]     Evaluating Python dependencies for removal...
Detecting pip caller
Attempting to find flexible python... 
Attempting to find python3 or python...Success!

Running command=$lb("python3","-m","pip","uninstall","-y","regex","--break-system-packages")
Found existing installation: regex 2025.11.3
Uninstalling regex-2025.11.3:
  Successfully uninstalled regex-2025.11.3

Running command=$lb("python3","-m","pip","uninstall","-y","six","--break-system-packages")
Found existing installation: six 1.17.0
Uninstalling six-1.17.0:
  Successfully uninstalled six-1.17.0

[USER|demo-module2]     Clean SUCCESS

Additionally fixed the <UNDEFINED>InstallOrDownloadPythonRequirem+64^%IPM.Lifecycle.Base.1 error

zpm:USER>load /usr/irissys/mgr/user/mmm

Building dependency graph...Done.
[USER|demo-module1]     Initialize START
[USER|demo-module1]     Initialize SUCCESS
[USER|demo-module1]     Reload START (/usr/irissys/mgr/user/mmm/)
[demo-module1]  Reload FAILURE
ERROR! ObjectScript error: <UNDEFINED>InstallOrDownloadPythonRequirem+64^%IPM.Lifecycle.Base.1 *processType

to

zpm:USER>load /usr/irissys/mgr/user/mmm

Building dependency graph...Done.
[USER|demo-module1]     Initialize START
[USER|demo-module1]     Initialize SUCCESS
[USER|demo-module1]     Reload START (/usr/irissys/mgr/user/mmm/)
[USER|demo-module1]      FAILURE
[demo-module1]  Reload FAILURE
ERROR! Python general error 'Embedded Python is not available in this instance.