[joeblau]

Node: already on Node 24 (current Active LTS) in engines and every setup-node step, so no change.

Patch/minor bumps:

• next 16.3.8 → 16.4.2, react/react-dom → ^19.3.1
• fumadocs-core/ui 16.15.14 → 16.17.7, fumadocs-mdx 15.4.5 → 15.4.9
• tailwindcss and @tailwindcss/postcss ^4.2.0 → ^4.3.3
• playwright-core ^1.63.0 → ^1.64.1
• @types/node ^24.13.6 → ^24.19.2 (stays on the Node 24 line), @types/react/react-dom → ^19.3.0, @types/mdx → ^2.0.14

Majors:

• happy-dom and @happy-dom/global-registrator 20 → 21 (sfx is already on 21)
• lucide-react 0.577 → 1.61 (docs only)

Held back:

• @bloxwap/font 0.1.2 → 0.1.4: 0.1.4 splits each face into unicode-range subsets, and apps/docs/scripts/prepare-demo.mjs expects exactly 4 Latin faces, so docs:build fails. Kept on 0.1.2; moving the demo to the subset CSS is a separate change.
• typescript 6 → 7: the tsrs setup from build: compile @bloxwap/chart with tsrs instead of tsc #74/build: type-check docs with tsrs and keep a tsc fallback #75 keeps TS 6 as the typecheck:tsc fallback, so it's unchanged.
• @types/node 26: Node 26 isn't LTS yet.

Ran locally: docs:build, test (icons, wasm and tsrs build, then node tests), typecheck (tsrs plus docs check), typecheck:tsc, lint.