@intx/hub-common

Utilities shared across the hub packages. This package has a generic name and is therefore at risk of becoming a junk drawer. A new module belongs here only if it satisfies all of the following:

1. It is genuinely needed by more than one of the hub packages (@intx/hub-api, @intx/hub-sessions, or future hub packages). Code used by exactly one package belongs in that package.
2. It encodes hub-schema-owner knowledge that does not belong in @intx/types. For example, the id prefix table here is the identity namespace of the hub's database schema, so it lives with the schema owner. By contrast, a generic hex encoder belongs in @intx/types (and in fact @intx/types already owns one); do not duplicate it here.
3. It is not session-plane logic, HTTP-surface logic, or a database concern -- those have dedicated packages.
4. It depends only on node built-in modules. External dependencies signal that the code probably wants a more specific home.

If this package grows beyond a handful of small modules, that is a signal to find the real boundary, not to keep adding here.

See LAYOUT.md for the package layout this fits into.