Function encode_edge_cursor 

pub fn encode_edge_cursor(pk: i64) -> String

Encode a BIGINT primary key value as a Relay edge cursor.

The cursor is base64(pk_string) where pk_string is the decimal representation of the BIGINT. This is opaque to the client.

Example

use fraiseql_core::runtime::relay::encode_edge_cursor;

let cursor = encode_edge_cursor(42);
assert_eq!(cursor, base64_of("42"));