feat(wasm): validate client event and state ABI

req: client_local/005\nreq: client_local/006\nreq: client_local/007\nreq: client_local/008\nreq: client_local/009\nreq: client_local/010\nreq: client_local/014

examples/client_local/src/lib.rs

@@ -2,6 +2,12 @@
 pub mod ui {}
 
 #[hemx::handler(client)]
-pub fn increment() -> impl hemx::IntoEffect {
-    ui::client_local::counter_panel.text("updated by Rust/WASM")
+pub fn increment(
+    event: hemx::wasm::ClientEvent,
+    state: hemx::wasm::ClientState,
+) -> impl hemx::IntoEffect {
+    ui::client_local::counter_panel.text(format!(
+        "updated by Rust/WASM ({}, {})",
+        event.kind, state.encoded
+    ))
 }

examples/client_local/templates/client_local.heml

@@ -1,4 +1,4 @@
-<main data-hemx-root="client_local">
+<main data-hemx-root="client_local" data-hemx-st="count=3" data-hemx-client-state-version="1">
   <section data-hemx-slot="counter_panel">idle</section>
-  <button type="button" data-hemx-handle="increment" data-hemx-client="increment">Increment locally</button>
+  <button type="button" data-hemx-handle="increment" data-hemx-on="click" data-hemx-client="increment" data-hemx-client-fallback data-hemx-pending-class="is-pending">Increment locally</button>
 </main>