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/Dockerfile

@@ -1,7 +1,17 @@
+# Stage 1: Build WASM from Rust
+FROM rust:slim AS wasm-builder
+RUN rustup target add wasm32-unknown-unknown \
+    && cargo install wasm-pack
+WORKDIR /wasm
+COPY crates/stp_wasm/ crates/stp_wasm/
+RUN wasm-pack build crates/stp_wasm --target web --out-dir ../../src/wasm
+
+# Stage 2: Build Vue frontend
 FROM node:22-slim
 RUN apt-get update && apt-get install -y make git && rm -rf /var/lib/apt/lists/*
 WORKDIR /app
 COPY package.json package-lock.json ./
 RUN npm ci
 COPY . .
-CMD ["sh", "-c", "npm run build -- --outDir /output --emptyOutDir"]
+COPY --from=wasm-builder /wasm/src/wasm/ src/wasm/
+CMD ["sh", "-c", "npx vite build --outDir /output --emptyOutDir"]