Support for the Input feature on the Manage access dialog

[SharonStrats]

On the input we needed a search for people and groups so I took what I had done previously and fixed it up a bit, improved the code. Also I decided to make a directory service here so that we can use the service everywhere.

It is configurable, you can pass in what you want to search for one or a combination of friends, contacts, groups, and the catalog from solid.

There are some caveats like your address book/s need to be in your type indexes in order to search for contacts and groups in them.

Here is the original PR SolidOS/solid-ui#725. I think I will close it if we go this way.

[Copilot]

Copilot review overview

🟡 Changes recommended

Input normalization, nondeterministic merging, WebID detection, origin validation, and failure caching can produce incorrect or stale access subjects.

Review effort: Balanced
Findings: 1 · 4

Open (5)

• Unvalidated vCard URLs can be mistaken for WebIDs · New
• Origin validation accepts non-HTTP schemes and query strings · New
• Failed catalog responses are cached permanently · New
• Concurrent merges choose nondeterministic labels and sources · New
• Empty source selection incorrectly falls back to all defaults · New

What changed in this PR

Adds directory-based subject discovery and ACL subject classification for Manage Access input.

Changes:

• Searches contacts, groups, FOAF friends, and the Solid catalog.
• Classifies entered ACL subjects.
• Exposes directory APIs through SolidLogic and package exports.

File	Description
test/​directoryLogic.test.ts	Tests individual directory sources.
src/​types.ts	Defines directory and ACL APIs.
src/​logic/​solidLogic.ts	Initializes directory logic.
src/​index.ts	Exports new public APIs.
src/​directory/​friendsDirectory.ts	Discovers FOAF connections.
src/​directory/​directoryLogic.ts	Coordinates directory searches.
src/​directory/​directoryHelpers.ts	Provides matching, merging, and labeling helpers.
src/​directory/​contactsDirectory.ts	Discovers contacts and groups.
src/​directory/​catalogDirectory.ts	Loads catalog entries.
src/​acl/​aclLogic.ts	Exposes subject classification.
src/​acl/​accessControlSubjects.ts	Classifies ACL subject kinds.

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