#1594: Implement release commandlet

[laert-ll]

This PR fixes #1594

Implemented changes:

• Added ide release commandlet that automates building and deploying a release: derives the release version from .mvn/maven.config (-Drevision=), commits and tags it, runs the Maven deploy build, bumps to the next -SNAPSHOT version, and pushes after confirmation.
• Guards: aborts on uncommitted changes, warns when run on a fork, and requires the top-level project (or --force).
• Build goals are configurable via MVN_RELEASE_OPTS (default clean deploy -Dchangelist= -Pdeploy); failed builds can be retried.
• Added commit, tag, push, and retrieveGitRemotes to GitContext.

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Testing instructions

1. In a project using -Drevision= versioning (e.g. IDEasy itself), run ide release from the project root.
2. Confirm it proposes the correct release/next versions, then creates the set release version commit + release/ tag, builds, and creates the set next version commit.
3. Answer no at the final "Do you want to continue?" prompt to abort before pushing — verify nothing is pushed. To clean up: git reset --hard HEAD~2 && git tag -d release/.

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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
• You have formulated clear instructions on how to test your contribution under "Testing instructions"

[coveralls]

Coverage Report for CI Build 29005436339

Coverage decreased (-0.002%) to 72.178%

Details

• Coverage decreased (-0.002%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 53 coverage regressions across 2 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

53 previously-covered lines in 2 files lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/git/GitContextImpl.java	46	37.53%
com/devonfw/tools/ide/commandlet/CommandletManagerImpl.java	7	91.83%

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Coverage Stats

Relevant Lines:	16798
Covered Lines:	12641
Line Coverage:	75.25%
Relevant Branches:	7496
Covered Branches:	4894
Branch Coverage:	65.29%
Branches in Coverage %:	Yes
Coverage Strength:	3.19 hits per line

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💛 - Coveralls