#1808: do not report a workspace when icd navigates to the project root

[maybeec]

This PR fixes #1808

Implemented changes:

• The icd command (and the shared ide shell integration it reuses) no longer claims you are in workspace main when you actually navigate to the project root.
• The workspace is now only reported when the current directory is really inside a workspaces/<name> folder:
  • icd -p «project» → IDE environment variables have been set for «home» (no workspace mentioned)
  • icd -p «project» -w [«name»] → ... in workspace «name» (unchanged)
  • bare icd inside a project → jumps to the project root → ... for «home» (no workspace)
  • bare icd with no project → only navigates to the projects root (IDE_ROOT), no environment setup and no message (unchanged)
• Applied the same logic to the Windows ide.bat wrapper for cross-platform consistency.
• Updated the affected documentation examples (cli.adoc, features.adoc) and added a CHANGELOG.adoc entry.

This is a message-only change; the navigation semantics of -p / -w (as designed and discussed in the issue) are unchanged.

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Testing instructions

1. Run the shell-integration tests: bash cli/src/test/functions-test.sh — all tests pass (includes new icd message tests covering project-root vs. workspace).
2. Manually: in an IDEasy installation with a single project, run icd -p «project». The output must read IDE environment variables have been set for «...»/«project» without in workspace main.
3. Then run icd -p «project» -w and confirm it still reports ... in workspace main (you are now inside the workspace).
4. From a deeply nested folder inside a workspace, run bare icd and confirm it jumps to the project root and reports ... for «home» without a workspace.

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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 28850392142

Coverage increased (+0.02%) to 72.087%

Details

• Coverage increased (+0.02%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.

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Coverage Stats

Relevant Lines:	16558
Covered Lines:	12435
Line Coverage:	75.1%
Relevant Branches:	7434
Covered Branches:	4860
Branch Coverage:	65.38%
Branches in Coverage %:	Yes
Coverage Strength:	3.18 hits per line

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