SDKConfig.KeepAlive field is ignored in makeClient()

[BGProjects]

Bug Description

The SDKConfig struct has a KeepAlive field, but makeClient() function
ignores it and always passes false to New().

Code Location

sdk.go, line ~108-112:

client, err := New(RunwareConfig{
    APIKey:    cfg.APIKey,
    ConnAddr:  cfg.ConnAddr,
    KeepAlive: false,  // Should be: cfg.KeepAlive
})

**Expected Behavior**

makeClient() should use cfg.KeepAlive value instead of hardcoded false.

**Suggested Fix**

KeepAlive: cfg.KeepAlive,

**Impact**

Users cannot enable WebSocket keep-alive functionality through the SDK
configuration.