Spellcast v0.4.6

What's Changed

• Polish README hero: tofu glyphs, title gradient, simpler motion by @Vanyangyang in #10
• README hero: wand-only loop, drop caption and dots by @Vanyangyang in #11
• Polish README hero wand and recast the aside loop by @Vanyangyang in #12
• Add Grok Build aside-bubble GIF to README How it looks by @Vanyangyang in #13
• Remove Grok Build vs Codex shot disclaimers from READMEs by @Vanyangyang in #14

Full Changelog: v0.4.5...v0.4.6