Add Coder Got Bun by LoudSongbird1090

Adds Coder Got Bun by LoudSongbird1090, my Suno-created song about Bun, fast builds, package installs, and developer tooling.

Listen on Suno.

• Adds the original MP3 (2:37, 3.42 MB, approximately 172 kbps VBR) and its playlist entry.
• Includes the lyrics embedded in the supplied MP3 as a matching plain-text .lrc sheet.

Validation: npm run check passed with no diagnostics; npm test built the site and passed all 1,115 checks. The new /playlist/coder-got-bun page was also opened in the browser and the track played successfully. FFmpeg decoded the entire MP3 without errors.