Add upload tool and related APIs (#187)

* Add utils for r2 upload

* Add the tool and new routes

* fix auth issue

* sign headers

* add comment

* use our own API key to auth signed uploads

* Restructure things slightly

* tweak

* tweak

* add comments

* tweak

* revert a thing

* twaek

* drop mime type filtering

* new incarnation of mime type filtering

* jsut allow all octet-streams

* simplify further

* tweak

* update lockfile

---------

Co-authored-by: Colin McDonnell <colinmcd94@gmail.com>

utils/setup.ts

@@ -134,10 +134,8 @@ export async function setupGit(params: SetupGitParams): Promise<void> {
   // - restricted/disabled: workflow token (limited by permissions block)
   // this protects the base repo while allowing fork PR edits via fork remote
   const originToken =
-    params.bashPermission === "enabled"
-      ? params.token
-      : (params.originalToken || params.token);
-  
+    params.bashPermission === "enabled" ? params.token : params.originalToken || params.token;
+
   // non-PR events: set up origin with token, stay on default branch
   if (params.event.is_pr !== true || !params.event.issue_number) {
     const originUrl = `https://x-access-token:${originToken}@github.com/${params.owner}/${params.name}.git`;