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.

packages/fullstack-server/src/lib.rs

@@ -0,0 +1,46 @@
+#![doc = include_str!("../README.md")]
+#![doc(html_logo_url = "https://avatars.githubusercontent.com/u/79236386")]
+#![doc(html_favicon_url = "https://avatars.githubusercontent.com/u/79236386")]
+// #![warn(missing_docs)]
+#![cfg_attr(docsrs, feature(doc_cfg))]
+#![forbid(unexpected_cfgs)]
+
+// re-exported to make it possible to implement a custom Client without adding a separate
+// dependency on `bytes`
+pub use bytes::Bytes;
+pub use dioxus_fullstack_core::{ServerFnError, ServerFnResult};
+
+pub use axum;
+pub(crate) use config::*;
+pub use config::*;
+pub use config::{ServeConfig, ServeConfigBuilder};
+pub use document::ServerDocument;
+pub use server::*;
+
+pub mod redirect;
+
+#[cfg(not(target_arch = "wasm32"))]
+mod launch;
+
+#[cfg(not(target_arch = "wasm32"))]
+pub use launch::{launch, launch_cfg};
+
+/// Implementations of the server side of the server function call.
+pub mod server;
+
+/// Types and traits for HTTP responses.
+// pub mod response;
+pub mod config;
+
+pub(crate) mod document;
+pub(crate) mod ssr;
+pub(crate) mod streaming;
+
+pub use launch::router;
+pub use launch::serve;
+
+pub mod serverfn;
+pub use serverfn::*;
+
+pub mod isrg;
+pub use isrg::*;