feat: add render graph driven renderer architecture

Amp-Thread-ID: https://ampcode.com/threads/T-019f9d91-77c1-7206-a60f-ed6554ce92ab

Co-authored-by: Heaust Azure <heaust.azure@gmail.com>

vendor/fxnode/docs/learn/index.md

@@ -0,0 +1,23 @@
+# Learn fxnode
+
+Treat this as a trail map rather than a giant manual.
+
+## Start
+
+Build [your first node](/learn/tutorials/first-node), then tour [all examples](/learn/examples/).
+
+## Build
+
+Use the [browser-host guide](/learn/guides/browser-host) to connect your DOM and the [interaction guide](/learn/guides/interactions) to translate input.
+
+## Understand
+
+Read [worker authority](/learn/concepts/worker-authority), [composition](/learn/concepts/composition), and [state and persistence](/learn/concepts/state-and-persistence).
+
+## Integrate
+
+Check [browser support](/learn/guides/browser-support), [CSP](/learn/guides/csp), lifecycle, and [accessibility](/learn/guides/accessibility) before shipping.
+
+## Reference
+
+When you know the concept and need an exact signature, use the [API Reference](/reference/).