Function connect

connect(
serverName: string,
credentialsContent?: string,
): Promise<NatsService | null>
Connects to central NATS over WebSocket and creates a KV manager.

Tries each URL from buildServerCandidates in order and returns the first connection that succeeds. TLS is turned off explicitly for ws: URLs. Every failure is logged to the console, and the function resolves to null instead of rejecting.

The KV manager's JetStream client skips the JetStream account check (checkAPI: false), which would otherwise cost one extra round trip each time a bucket is opened. An account without JetStream then fails on the first KV request instead of on open.
Parameters
- serverName: string
  Server text as typed, e.g. nats1.oats:8080. A missing scheme is filled in from the page protocol, and the other scheme is tried next.
- OptionalcredentialsContent: string
  Contents of a .creds file, not a path. Omit to connect without credentials.
Returns Promise<NatsService | null>
The connected service, or null if the server text is blank, the credentials authenticator cannot be built, or no candidate URL connects.
Example
```
const nats = await connect("nats1.oats:8080", credsText);
if (!nats) throw new Error("Could not reach central NATS");
```
- Defined in nats.svelte.ts:180