SuperMD v0.0.3

The identity release: SuperMD becomes SuperMD.

✨ Highlights

• Signed & notarized — the first release that opens with zero
  Gatekeeper warnings: Developer ID signature, hardened runtime,
  Apple notarization, stapled ticket. Download, drag, double-click.
• The Jackfruit rebrand — new amber identity throughout: app icon,
  wordmark, and two new default themes (Jackfruit Light / Jackfruit
  Dark) joining the existing six
• supermd.app — the landing page ships alongside this release

🔧 Under the hood

• Release pipeline hardened: notarization retries on transient runner
  network failures; the DMG itself is now signed (not just the app)

(v0.0.2 was tagged but never published — its notarization run was the
team's first-ever Apple submission and stalled in extended review;
everything it contained shipped here.)

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Full Changelog: v0.0.2...v0.0.3