400 websocket_error: ApiIdParam id exceeds 64 chars during iOS streaming

## Summary
When connected and streaming from an up-to-date iOS app, short commands triggered a 400 bad_request with a websocket_error. One command was simply `go`.

## Error
```
✗ Execution failed: CAPIError: 400 {"error":{"code":"bad_request","type":"websocket_error","message":"[ApiIdParam] [input[1].id] [string_above_max_length] Invalid 'input[1].id': string too long. Expected a string with maximum length 64, but got a string with length 380 instead."}} (Request ID: 00000-ef2d3e2a-2e1c-4bdd-b810-4006d9f709c7)
```

## Context
- Connected and streaming from the iOS app
- The app was up to date
- Commands were short
- One command was just `go`

## Expected
Commands should execute normally, or the client should validate the websocket id before sending it.

## Actual
The request failed with a 400 because `input[1].id` was 380 characters, above the 64-character limit.

No file or test is named. Start by tracing the websocket streaming request construction and generation of input[1].id, then reproduce with a short command such as `go`. Done means the streaming request no longer sends an id over 64 characters, or the client reports the validation failure before sending it.

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