fix anthropic console auth (#2049)

cloud/app/src/routes/auth/callback.ts

@@ -0,0 +1,36 @@
+import type { APIEvent } from "@solidjs/start/server"
+import { AuthClient, useAuthSession } from "~/context/auth"
+
+export async function GET(input: APIEvent) {
+  const url = new URL(input.request.url)
+  const code = url.searchParams.get("code")
+  if (!code) throw new Error("No code found")
+  const redirectURI = `${url.origin}${url.pathname}`
+  console.log({
+    redirectURI,
+    code,
+  })
+  const result = await AuthClient.exchange(code, `${url.origin}${url.pathname}`)
+  if (result.err) {
+    throw new Error(result.err.message)
+  }
+  const decoded = AuthClient.decode(result.tokens.access, {} as any)
+  if (decoded.err) throw new Error(decoded.err.message)
+  const session = await useAuthSession()
+  const id = decoded.subject.properties.accountID
+  await session.update((value) => {
+    return {
+      ...value,
+      account: {
+        [id]: {
+          id,
+          email: decoded.subject.properties.email,
+        },
+      },
+      current: id,
+    }
+  })
+  return {
+    result,
+  }
+}