feat(storage)!: storage authz completion

[ChrisPdgn]

This PR implements #1173. Please check in there for more details.

Breaking change:

• Client routes no longer allow container creation

Additional features:

• If no folder is provided in file creation, a personal folder is created with name cnd_${user._id}

Bugs found & fixes:

• Admin endpoint for folder deletion did not delete subfolders and subfolder files
• Container deletion in local provider was not possible

Notes:

• Containers can own files directly if file folder is '/', otherwise they can own folders that can own folders or files, e.tc.
• Admin users can create scoped containers, but default container cannot be owned
• Admin users can create scoped folders with admin endpoint & client users can create scoped folders through file creation (if allowed to do so)

What kind of change does this PR introduce?

• [x] Bugfix
• [x] Feature
• [ ] Code style update
• [x] Refactor
• [ ] Build-related changes
• [ ] Other (please describe)

Does this PR introduce a breaking change?

• [x] Yes
• [ ] No

The PR fulfills these requirements:

• [ ] It's submitted to the main branch
• [x] When resolving a specific issue, it's referenced in the PR's description (e.g. fix #xxx, where "xxx" is the issue number)

If adding a new feature, the PR's description includes:

• [x] A convincing reason for adding this feature

Other information: