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/playwright-tests/cli-optimization/Cargo.toml

@@ -11,7 +11,7 @@ dioxus = { workspace = true, features = ["web"] }
 serde = { workspace = true, features = ["derive"] }
 serde_json.workspace = true
 
-[build-dependencies]
-reqwest = { workspace = true, features = ["blocking"] }
-flate2 = "1.1.2"
-tar = "0.4.44"
+# [build-dependencies]
+# reqwest = { workspace = true, features = ["blocking"] }
+# flate2 = "1.1.2"
+# tar = "0.4.44"