Add container introspection via --from option

[Copilot]

versionix had no way to retrieve tool versions from inside a container image. This adds a --from option enabling introspection of Singularity/Apptainer and Docker containers.

versionix sequana_coverage --from sequana_0.18.img
versionix fastqc --from myimage.sif
versionix fastqc --from myrepo/myimage:latest

Core logic (parser.py)

• _get_container_runner(container): detects container type by extension (.img/.sif) or file existence → apptainer exec/singularity exec; falls back to docker run --rm for image names. Uses shlex.quote() to safely interpolate paths into shell commands.
• get_version(container=None): when container is provided, builds the runner and skips the local shutil.which check (the tool lives inside the container, not on the host).
• Versionix and search_registered() both accept container_runner=None and prepend it to all version-probe commands.

CLI (scripts.py)

• Adds --from option (mapped to from_container to avoid Python keyword collision), forwarded to get_version().

Original prompt

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This section details on the original issue you should resolve

<issue_title>could have introspection of container</issue_title>
<issue_description>versionix sequana_coverage --from sequana_0.18.img</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes could have introspection of container #21

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