v1.2.1

Changelog since v1.2:

• fix: remove config-yml dependency — replace the config loader with js-yaml to silence shelljs warnings and simplify dependencies.
• fix: listen on clientReady — switch to the renamed Discord clientReady event to prevent runtime deprecation notices.
• fix: harden presence refresh flow — improve presence updates, timeout handling, and scheduler resets for stability.
• docs: add contributor guidelines and project conventions — add onboarding guidance covering structure, style, testing, and configuration.
• docs: update README feature roadmap — align documented feature list with planned v2/v3 capabilities.

Full Changelog: v1.2...v1.2.1