codify "platform" into resolution logic, server-fn/fullstack overhaul (#4596)

overhaul dioxus fullstack using a new implementation of server_fn

This PR is a complete rewrite of dioxus fullstack designed to improve compatibility with axum and to fix a number of compilation errors based on feature flag unification plumbing through macros.

examples/10-integrations/pwa/README.md

@@ -0,0 +1,45 @@
+# Dioxus PWA example
+
+This is a basic example of a progressive web app (PWA) using Dioxus and Dioxus CLI.
+Currently PWA functionality requires the use of a service worker and manifest file, so this isn't 100% Rust yet.
+
+It is also very much usable as a template for your projects, if you're aiming to create a PWA.
+
+## Try the example
+
+Make sure you have Dioxus CLI installed (if you're unsure, run `cargo install dioxus-cli --locked`).
+
+You can run `dx serve` in this directory to start the web server locally, or run
+`dx build --release` to build the project so you can deploy it on a separate web-server.
+
+## Project Structure
+
+```
+├── Cargo.toml
+├── Dioxus.toml
+├── index.html // Custom HTML is needed for this, to load the SW and manifest.
+├── LICENSE
+├── public
+│   ├── favicon.ico
+│   ├── logo_192.png
+│   ├── logo_512.png
+│   ├── manifest.json // The manifest file - edit this as you need to.
+│   └── sw.js // The service worker - you must edit this for actual projects.
+├── README.md
+└── src
+    └── main.rs
+```
+
+## Resources
+
+If you're just getting started with PWAs, here are some useful resources:
+
+- [PWABuilder docs](https://docs.pwabuilder.com/#/)
+- [MDN article on PWAs](https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps)
+
+For service worker scripting (in JavaScript):
+
+- [Service worker guide from PWABuilder](https://docs.pwabuilder.com/#/home/sw-intro)
+- [Service worker examples, also from PWABuilder](https://github.com/pwa-builder/pwabuilder-serviceworkers)
+
+If you want to stay as close to 100% Rust as possible, you can try using [wasi-worker](https://github.com/dunnock/wasi-worker) to replace the JS service worker file. The JSON manifest will still be required though.