#871: add progress bar to DMG extraction

[shodiBoy1]

This PR fixes #871

Implemented changes:

• added a Copying progress bar while IDEasy copies an application from a mounted DMG.
• reused the existing recursive copy logic and update the progress after each copied file.
• added a focused test for the progress bar and updated the changelog.

---

Testing instructions

1. On macOS, check out this PR:

   gh pr checkout 2408

2. Run the focused test:

   cd cli
   mvn -Dtest=FileAccessImplTest#testExtractDmgWithProgressBar test

3. Verify that the test finishes with BUILD SUCCESS.

4. Optionally, run a real DMG installation:

mvn exec:exec -Dexec.executable=java -Dexec.args="-cp %classpath com.devonfw.tools.ide.cli.Ideasy --force install pycharm"

6. Verify that the Copying progress reaches 100%, the DMG is detached, and the installation completes.

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Checklist for this PR

• 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 and not feature/921 fixed setup.bat). If no issue ID exists, title only.
• PR top-level comment summaries 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 labelled
  with internal
• You have not changed any dependency in pom.xml files or otherwise if runtime dependencies changed, you have updated our LICENSE.asciidoc
• You have formulated clear instructions on how to test your contribution under "Testing instructions"

[coveralls]

Coverage Report for CI Build 33916190084

Coverage increased (+0.1%) to 73.978%

Details

• Coverage increased (+0.1%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 171 coverage regressions across 1 file.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

171 previously-covered lines in 1 file lost coverage.

File	Lines Losing Coverage	Coverage
com/devonfw/tools/ide/io/FileAccessImpl.java	171	71.88%

---

Coverage Stats

Relevant Lines:	18714
Covered Lines:	14470
Line Coverage:	77.32%
Relevant Branches:	8340
Covered Branches:	5544
Branch Coverage:	66.47%
Branches in Coverage %:	Yes
Coverage Strength:	3.3 hits per line

---

💛 - Coveralls

[shodiBoy1]

WARNING: A restricted method in java.lang.foreign.MemorySegment has been called
WARNING: java.lang.foreign.MemorySegment::reinterpret has been called by org.jline.terminal.impl.ffm.FfmTerminalProvider in an unnamed module (file:/Users/shohzodsobirov/.m2/repository/org/jline/jline/4.3.1/jline-4.3.1.jar)
WARNING: Use --enable-native-access=ALL-UNNAMED to avoid a warning for callers in this module
WARNING: Restricted methods will be blocked in a future release unless native access is enabled

Downloading 100% │██████████████████│ 1091/1091MiB (0:04:06 / 0:00:00) 4,4MiB/s
SHA-256 checksum aa6770f7b336aa9afe43f946d5f34627c1679bdc990e52c09e4d8098d54ab785 is correct.
Extracting DMG file /Users/shohzodsobirov/Library/Caches/IDEasy/downloads/default/pycharm-2025.3-mac-arm64.dmg to /Users/shohzodsobirov/projects/_ide/tmp/extract-pycharm-2025.3-mac-arm64.dmg
Copying 100% │████████████████████│ 3219/3219MiB (0:00:09 / 0:00:00) 357,7MiB/s
"disk14" ejected.
Start: Configuring workspace main for IDE pycharm
Successfully ended step 'Configuring workspace main for IDE pycharm'.
Resetting all installed plugins...
Successfully installed pycharm in version 2025.3 at /Users/shohzodsobirov/projects/test-fix/software/pycharm
Successfully completed ide (install,pycharm)
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  04:34 min
[INFO] Finished at: 2026-09-02T19:28:04+02:00
[INFO] ------------------------------------------------------------------------
shohzodsobirov@MacBookPro cli %