Feature/aptly error handling

[embtom]

###Added

• Dedicated aptly credentials support for authenticated publishing workflows

Changed

• Build/test scripts were modularized to separate package build and upload phases
• Aptly package build/upload flow was hardened with improved validation, logging, and failure handling

[github-actions]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
1229	1014	83%	0%	🟢

New Files

No new covered files...

Modified Files

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updated for commit: 8f29524 by action🐍

[Copilot]

Pull request overview

This PR refactors the local test build scripts and the Python tooling to improve robustness around Aptly interactions and to support a two-phase “build then upload” workflow (via a new --no-build flag).

Changes:

• Refactors test/*/build.sh scripts to share Podman arguments and to support build|upload|all actions (upload now runs with --no-build).
• Improves Aptly client error handling and restructures upload/publish logic; CLI now has clearer failure behavior when build artifacts are missing.
• Removes the prepare_env helper script and updates local dev config (launch.json, .gitignore, credential template).

Reviewed changes

Copilot reviewed 8 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/systemd/build.sh	Refactors Podman invocation; adds build/upload split via --no-build.
test/debhello/build.sh	Same refactor as systemd script; supports separate upload step.
test/aptly-credentials.user	Adds a checked-in credential template for local use.
packtly-builder/tooling/prepare_env	Removes the Poetry-based environment preparation script.
packtly-builder/tooling/packtly_builder_tooling/tests/test_debuild.py	Adjusts test scaffolding to match Debuild logging changes.
packtly-builder/tooling/packtly_builder_tooling/parts/debuild.py	Switches to a module-level logger rather than per-instance logger.
packtly-builder/tooling/packtly_builder_tooling/parts/aptly.py	Adds richer Aptly exception handling and new upload behavior (incl. force_upload).
packtly-builder/tooling/packtly_builder_tooling/cli.py	Introduces --no-build, refactors build into helper, improves missing-artifact error handling.
.vscode/launch.json	Updates debug args to use credentials file and --no-build.
.gitignore	Ignores aptly-credentials files.

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