Fallback to Zerion Balance Fetching on Failed Safe Attempt

[bh2smith]

We are hitting some failed balance fetching on Avalanche:

Error fetching Safe balances: TypeError: fetch failed
    at node:internal/deps/undici/undici:13185:13
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at runNextTicks (node:internal/process/task_queues:64:3)
    at process.processImmediate (node:internal/timers:454:9)
    at process.callbackTrampoline (node:internal/async_hooks:130:17)
    at async getSafeBalances (/var/task/node_modules/@bitte-ai/agent-sdk/dist/cjs/evm/safe.js:40:26)
    at async Promise.all (index 0) {
    [cause]: ConnectTimeoutError: Connect Timeout Error (attempted addresses: 108.138.85.41:443)
    at onConnectTimeout (node:internal/deps/undici/undici:2331:28)
    at node:internal/deps/undici/undici:2283:50
    at Immediate._onImmediate (node:internal/deps/undici/undici:2315:13)
    at process.processImmediate (node:internal/timers:483:21)
    at process.callbackTrampoline (node:internal/async_hooks:130:17) {
    code: 'UND_ERR_CONNECT_TIMEOUT'
  }
}

for this request:

https://safe-transaction-avalanche.safe.global/api/v1/safes/0x454F89b3Ba39A15C198F95c2C92A20dD9D102144/balances/?trusted=false&exclude_spam=true

Attempting to temporarily navigate the Safe Balance fetching failures by using zerion on error.

Asked about rate limiting on Safe Discord