refactor: ♻️emoves Env parameter

Removes the `Env` parameter from several functions to simplify their signatures and rely on the global `env` for configuration.

This change reduces the number of arguments passed around, making the code cleaner and easier to maintain.

src/libs/gcloud/getAdminSdkCredentials.ts

@@ -1,13 +1,12 @@
+import { env as cloudflareEnv } from "cloudflare:workers";
 import mapKeys from "lodash.mapkeys";
 
-import type { Env } from "~/types/env";
-
 import { Case, changeStringCase } from "../changeStringCase";
 import { readEnvVariable } from "../readEnvVariable";
 
-export function getAdminSdkCredentials(env: Env) {
+export function getAdminSdkCredentials(env: Cloudflare.Env = cloudflareEnv) {
   return mapKeys(
-    readEnvVariable<AdminSdkCredentials>(env, "ADMIN_SDK_JSON"),
+    readEnvVariable<AdminSdkCredentials>("ADMIN_SDK_JSON", env),
     (_, key) => changeStringCase(key, Case.snake_case, Case.camelCase),
   ) as unknown as AdminSdkCredentials;
 }