1518 uv tools are now installed locally

[ducminh02]

This PR fixes #1518

Implemented changes:

• Isolated uv Installations: Redirected tool installs to the IDE managed software folder via XDG_BIN_HOME.
• Commandlet Updates: Added automatic environment variable exports to both Python.java and Uv.java.
• Resolved PATH Warnings: Eliminated "not on your PATH" warnings by scoping installations to IDE-specific directories.

---

Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
our DoD.

• When running mvn clean test locally all tests pass and build is successful
• PR title is of the form #«issue-id»: «brief summary» (e.g. #921: fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summarizes what has been done and contains link to addressed issue(s)
• PR and issue(s) have suitable labels
• Issue is set to In Progress and assigned to you or there is no issue (might happen for very small PRs)
• You followed all coding conventions
• You have added the issue implemented by your PR in CHANGELOG.adoc unless issue is labeled
  with internal

[coveralls]

Coverage Report for CI Build 25315702124

Coverage increased (+0.006%) to 70.653%

Details

• Coverage increased (+0.006%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 1 coverage regression across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

1 previously-covered line in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/python/Python.java	1	76.32%

---

Coverage Stats

Relevant Lines:	15352
Covered Lines:	11307
Line Coverage:	73.65%
Relevant Branches:	6848
Covered Branches:	4378
Branch Coverage:	63.93%
Branches in Coverage %:	Yes
Coverage Strength:	3.12 hits per line

---

💛 - Coveralls

[areinicke]

I just tested your PR. Generally, it seems to work very well. uv tools are now always installed within the IDEasy project.

However, I noticed the following: uv tools that are installed within an IDEasy project are also available in all other projects. For example, if I install the tool "ruff" in the IDEasy project "A", then the tool is installed correctly under $IDE_ROOT/A/software/python/bin/ruff . But if I then switch to IDEasy project B and execute uv tools list, then the ruff tool is still available. The tool cannot be reinstalled in project B either, because it is already installed in project A. Furthermore, uninstalling (or deleting) the tool will then lead to it no longer being available in any of the projects.

The goal was that uv should be installed in an isolated way. This is also achieved for the uv installation itself. However, the fact that uv tools are then shared across projects violates this goal somewhat IMO. Can you take a look at it again?