feat: liquid glass UI, blob background, redesign home/portfolio/about pages

- Liquid glass effect on navbar/cards with backdrop-filter invert
- Animated blob gradient background (SVG-based)
- Portfolio section: scene-dark invert, show 5 items on home
- How Work section: step flow with numbers + connecting lines
- Hero: Decision snapshot replacing problem selector
- About page: inverted background with contrast fixes
- Fix parallax JS bundling via Astro
- Fix navbar fixed positioning after liquid glass CSS
- Submenu hover fix
- Clean up removed legacy files/assets

redesign-input/assets/logos/logo.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 200 40" fill="none">
+  <rect width="40" height="40" rx="8" fill="#fed400"/>
+  <text x="8" y="28" font-family="Kanit, sans-serif" font-weight="800" font-size="20" fill="#000">M</text>
+  <text x="52" y="26" font-family="Kanit, sans-serif" font-weight="600" font-size="18" fill="#000">M</text>
+  <text x="72" y="26" font-family="Noto Sans Thai, sans-serif" font-weight="500" font-size="14" fill="#000">oreMiniMore</text>
+</svg>