Validate filesystem perms against namespace capabilities for posix origins#2881

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h2zh wants to merge 2 commits intoPelicanPlatform:mainfrom

h2zh:validate-fs-perms-against-capabilities

Commits on Dec 15, 2025

Check if the xrootd user has the required filesystem permissions for the configured capabilities
h2zh
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Commits on Dec 16, 2025

Update tests
h2zh
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