chore(release): 0.38.0 — hub OAuth connect fixes (Notion authorize URL, Dropbox Sign scope) (#100)

Cuts 0.38.0 over the two hub OAuth connect fixes already merged to main:

- #95 fix(notion): authorize at /v1/oauth/authorize — bare
  api.notion.com/oauth/authorize returned 400 invalid_request_url.
- #99 fix(hellosign): omit the per-request `scope` query param from the
  authorize URL via the new OAuth2 `sendScopeParam: false` flag — Dropbox
  Sign rejects custom scopes ("Custom scopes are not supported yet") and
  pins them app-side.

Pure version bump; both feature commits already on main (ba30f16, 1f90143).
Tag v0.38.0 after merge → publish workflow (typecheck/test/build + OIDC).

Author: AtelyPham

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@tangle-network/agent-integrations",
-  "version": "0.37.0",
+  "version": "0.38.0",
   "description": "Vendor-neutral integration contracts and runtime helpers for sandbox and agent apps.",
   "homepage": "https://github.com/tangle-network/agent-integrations#readme",
   "repository": {