Move scroll animations to Rust/WASM, enable Hasura, and move bookmarks to home sidebar

Port AutoScroll and Headline scroll logic from Vue/JS to Rust compiled
to WASM via wasm-pack. Add multi-stage Docker build for WASM compilation,
Vite WASM plugins, and top-level await for WASM init. Enable Hasura
service in docker-compose. Move bookmarks from a separate route to an
inline sidebar component on the home page. Fix ToggleHeader click
propagation.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

vue/crates/stp_wasm/src/lib.rs

@@ -1,6 +1,5 @@
-use wasm_bindgen::prelude::*;
+mod auto_scroll;
+mod headline;
 
-#[wasm_bindgen]
-pub struct BadApplePlayer {
-    is_playing: bool,
-}
+pub use auto_scroll::AutoScroller;
+pub use headline::HeadlineScroller;