feat: add mobile responsiveness across all pages

- Add hamburger menu icon and MobileMenu slide-out drawer component
- Update AppHeader with responsive nav (hidden on mobile, hamburger shown)
- Apply responsive styles to all 14 pages:
  - Responsive headings (text-2xl sm:text-3xl md:text-4xl)
  - Responsive grid gaps (gap-4 md:gap-6)
  - Explicit mobile grid columns (grid-cols-1 md:grid-cols-X)
  - Flex stacking on mobile (flex-col sm:flex-row)
- Add mobile nav dropdown to docs page
- Update README to correctly frame TPMJS as a discovery registry first,
  with agent integration as secondary/optional

packages/ui/src/Icon/icons.ts

@@ -40,6 +40,10 @@ export const icons = {
     viewBox: '0 0 24 24',
     path: 'M20.317 4.37a19.791 19.791 0 0 0-4.885-1.515.074.074 0 0 0-.079.037c-.21.375-.444.864-.608 1.25a18.27 18.27 0 0 0-5.487 0 12.64 12.64 0 0 0-.617-1.25.077.077 0 0 0-.079-.037A19.736 19.736 0 0 0 3.677 4.37a.07.07 0 0 0-.032.027C.533 9.046-.32 13.58.099 18.057a.082.082 0 0 0 .031.057 19.9 19.9 0 0 0 5.993 3.03.078.078 0 0 0 .084-.028 14.09 14.09 0 0 0 1.226-1.994.076.076 0 0 0-.041-.106 13.107 13.107 0 0 1-1.872-.892.077.077 0 0 1-.008-.128 10.2 10.2 0 0 0 .372-.292.074.074 0 0 1 .077-.01c3.928 1.793 8.18 1.793 12.062 0a.074.074 0 0 1 .078.01c.12.098.246.198.373.292a.077.077 0 0 1-.006.127 12.299 12.299 0 0 1-1.873.892.077.077 0 0 0-.041.107c.36.698.772 1.362 1.225 1.993a.076.076 0 0 0 .084.028 19.839 19.839 0 0 0 6.002-3.03.077.077 0 0 0 .032-.054c.5-5.177-.838-9.674-3.549-13.66a.061.061 0 0 0-.031-.03zM8.02 15.33c-1.183 0-2.157-1.085-2.157-2.419 0-1.333.956-2.419 2.157-2.419 1.21 0 2.176 1.096 2.157 2.42 0 1.333-.956 2.418-2.157 2.418zm7.975 0c-1.183 0-2.157-1.085-2.157-2.419 0-1.333.955-2.419 2.157-2.419 1.21 0 2.176 1.096 2.157 2.42 0 1.333-.946 2.418-2.157 2.418z',
   },
+  menu: {
+    viewBox: '0 0 24 24',
+    path: 'M3 18h18v-2H3v2zm0-5h18v-2H3v2zm0-7v2h18V6H3z',
+  },
 } as const;
 
 export type IconName = keyof typeof icons;