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>

.gitignore

@@ -17,6 +17,9 @@ gitea-runner/nohup.out
 # Rust build artifacts
 **/target/
 
+# Generated WASM output
+vue/src/wasm/
+
 # Logs
 logs
 *.log