feat: add delegatable ability to generate a billing customer portal session

So far I've implemented generating a session for the current user - next I'll add some UI to delegate this capability to other users by email address.

TODO

- [ ] add ability to delegate new capability to users
- [ ] add UI to generate customer portal sessions for any delegations you have

Author: travis

package.json

@@ -21,9 +21,10 @@
     "@ucanto/core": "^9.0.0",
     "@ucanto/interface": "^9.0.0",
     "@ucanto/transport": "^9.0.0",
-    "@w3ui/react": "^2.2.0",
+    "@w3ui/react": "link:../w3ui/packages/react",
     "@web3-storage/content-claims": "^3.2.1",
     "@web3-storage/data-segment": "^5.0.0",
+    "@web3-storage/w3up-client": "link:../w3up/packages/w3up-client",
     "archy": "^1.0.0",
     "ariakit-utils": "0.17.0-next.27",
     "blueimp-md5": "^2.19.0",