#1255: Enhance snapshot version recognition in IDEasy

[AdemZarrouki]

This PR fixes #1255

Implemented changes:

• Added isSameSnapshotVersion to compare 2 snapshot versions
• Refactored checkIfUpdateIsAvailable with explicit snapshot vs stable version comparison logic

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Testing instructions

1. For the test i added some two unit tests testCheckIfUpdateIsAvailableWithSameSnapshotVersions and testCheckIfUpdateIsAvailableWithDifferentSnapshotVersions.
2. It should be tested after the merge as with GraalVM, when running "C:\Users\projects\IDEasy\workspaces\main\IDEasy\cli\target\ideasy.exe" status you get only 2026.05.001-SNAPSHOT so we can't really compare it with the latest version (here 2026.05.001-20260520.032326-18)

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Checklist for this PR

Make sure everything is checked before merging this PR. For further info please also see
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• When running mvn clean test locally all tests pass and build is successful
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[coveralls]

Coverage Report for CI Build 26654875090

Coverage decreased (-0.01%) to 71.09%

Details

• Coverage decreased (-0.01%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 69 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

69 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/tool/IdeasyCommandlet.java	68	73.15%
com/devonfw/tools/ide/version/VersionSegment.java	1	89.24%

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Coverage Stats

Relevant Lines:	15752
Covered Lines:	11684
Line Coverage:	74.17%
Relevant Branches:	7022
Covered Branches:	4506
Branch Coverage:	64.17%
Branches in Coverage %:	Yes
Coverage Strength:	3.14 hits per line

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💛 - Coveralls

[hohwille]

@AdemZarrouki thanks for your PR and sorry for stepping in early. I just found some time to have a look already and want to give fast feedback...
Your approach looks good and your test with overriding the methods in anonymous class is very elegant to properly test the logic. 👍
For the regex stuff I left some suggestion to improve.

[AdemZarrouki]

@hohwille thanks for the early review and the improvements you mentioned. I updated the PR with the requested changes and also i think that using two REGEX constants is easier to understand.

[laert-ll]

Local build testing:

$ ide status

Your version of IDEasy is SNAPSHOT.
You are using a SNAPSHOT version of IDEasy. For stability consider switching to a stable release via 'ide upgrade --mode=stable'
Your version of IDEasy is SNAPSHOT but version SNAPSHOT is available. Please run the following command to upgrade to the latest version:
ide upgrade

$ ide upgrade
You are using IDEasy version SNAPSHOT which indicates local development - skipping upgrade.
Version SNAPSHOT of tool ideasy is already installed

$ ide update

$ ide status
Your version of IDEasy is SNAPSHOT.
You are using a SNAPSHOT version of IDEasy. For stability consider switching to a stable release via 'ide upgrade --mode=stable'
Your version of IDEasy is SNAPSHOT but version SNAPSHOT is available. Please run the following command to upgrade to the latest version:
ide upgrade

GraalVM testing:

$ ide status

Your version of IDEasy is 2026.05.001-SNAPSHOT.
You are using a SNAPSHOT version of IDEasy. For stability consider switching to a stable release via 'ide upgrade --mode=stable'
Your version of IDEasy is 2026.05.001-SNAPSHOT but version 2026.05.001-20260527.032443-21 is available. Please run the following command to upgrade to the latest version:
ide upgrade

$ ide upgrade

Successfully installed ideasy in version 2026.05.001-20260527.032443-21 replacing previous version 2026.05.001-SNAPSHOT of ideasy at C:\Users\lllavesh\projects\_ide\installation

$ ide update

$ ide status
Your version of IDEasy is 2026.05.001-05_27_03-SNAPSHOT.
You are using a SNAPSHOT version of IDEasy. For stability consider switching to a stable release via 'ide upgrade --mode=stable'
Your version of IDEasy is 2026.05.001-05_27_03-SNAPSHOT but version 2026.05.001-20260527.032443-21 is available. Please run the following command to upgrade to the latest version:
ide upgrade

After some discussion with @AdemZarrouki, it seems like there's some difficulty in testing the actual behavior of this fix, given that both local as well as the GraalVM build do not use the same naming format as in real life testing.

[AdemZarrouki]

@laert-ll Thanks for the review and test.
I discussed this with @hohwille in our daily today and he suggested that we can change the version of ide in .mvn/maven.config and then we can test it locally before merging.

So the steps are:

• go to .mvn/maven.config and you will see something like this -Drevision=2026.05.002-SNAPSHOT. You can change it to -Drevision=2026.05.001-05_27_03-SNAPSHOT for example.
• Then you can do the Local build or GraalVM testing.

[hohwille]

@AdemZarrouki thanks for the improvements. IMHO now better to read, understand, and maintain. I also like that you added the constants for the group numbers that improve readability while the group numbers are close to the REGEX declarations now and therefore also way easier to update in case the REGEX ever needs to be changed. Great job 👍
Ready for merge.