fix ref detection for ca/ctf

[mandelsoft]

Description

Parsing a command line repository spec is improved to better distinguish CA and CTF variants.

A CTF is only enforced if the target has

• either the required descriptor file
• or if has no files

This gives spec handlers later in the list the chance to detect their type.

May be, a rework would be useful, where handlers distinguish between a default and a direct match.
So far, the first match exists the handler processing. With a default match, all handlers could be executed to look
for a direct match. A default match would only be used if no direct match is found.

Second problem is the compound resolver. If a component archive is used as resolver, if reports a not found error
for the component, instead of the requested component version. The error condition is fixed accordingly.

What type of PR is this? (check all applicable)

• 🍕 Feature
• 🐛 Bug Fix
• 📝 Documentation Update
• 🎨 Style
• 🧑‍💻 Code Refactor
• 🔥 Performance Improvements
• ✅ Test
• 🤖 Build
• 🔁 CI
• 📦 Chore (Release)
• ⏩ Revert

Related Tickets & Documents

• Related Issue # (issue)
• Closes # (issue)
• Fixes # (issue)

Remove if not applicable

Screenshots

Added tests?

• 👍 yes
• 🙅 no, because they aren't needed
• 🙋 no, because I need help
• Separate ticket for tests # (issue/pr)

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

Added to documentation?

• 📜 README.md
• 🙅 no documentation needed

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules