Function parse

parse(content: string): { type: string; details: string }
Parser for auth tags - defines MQTT authentication requirements

This parser handles the auth tag that defines authentication methods and requirements for MQTT connections. It extracts:
- Authentication type (username, tls, apikey, etc.)
- Optional authentication details and requirements
Parameters
- content: string
  Raw content from the auth tag
Returns { type: string; details: string }
Parsed authentication information with type and details, or null if parsing fails
Example: Username/password authentication
```
// Input: "username Device credentials with TLS recommended"
// Output: { type: "username", details: "Device credentials with TLS recommended" }
```
Example: TLS client certificate
```
// Input: "tls mTLS client certificate authentication"
// Output: { type: "tls", details: "mTLS client certificate authentication" }
```
Example: API key authentication
```
// Input: "apikey Bearer token in username field"
// Output: { type: "apikey", details: "Bearer token in username field" }
```
Example: No authentication
```
// Input: "none Public topic, no authentication required"
// Output: { type: "none", details: "Public topic, no authentication required" }
```
Since
4.1.0

Public
- Defined in core/parsers/mqtt_auth.ts:39