feat: add SharePanel component for social sharing with QR code support

- Implemented SharePanel component in `SharePanel.astro` for sharing content on social media platforms.
- Integrated QR code generation for WeChat sharing using the `qrcode` library.
- Added localization support for English and Chinese languages.
- Created utility functions in `seo.ts` for building article summaries and FAQs.
- Introduced API routes for serving IndexNow key and generating full LLM catalog and summaries.
- Enhanced SEO capabilities with structured data for articles and pages.

backend/Dockerfile

@@ -1,5 +1,8 @@
-FROM rust:1.94-trixie AS chef
-RUN cargo install cargo-chef --locked
+# syntax=docker/dockerfile:1.7
+
+FROM rust:1.94.1-trixie AS chef
+RUN rustup component add rustfmt clippy \
+    && cargo install cargo-chef --locked
 WORKDIR /app
 
 FROM chef AS planner
@@ -7,11 +10,20 @@ COPY . .
 RUN cargo chef prepare --recipe-path recipe.json
 
 FROM chef AS builder
+ENV CARGO_HOME=/usr/local/cargo \
+    CARGO_TARGET_DIR=/app/.cargo-target
 COPY --from=planner /app/recipe.json recipe.json
-RUN cargo chef cook --release --locked --recipe-path recipe.json
+RUN --mount=type=cache,target=/usr/local/cargo/registry,sharing=locked \
+    --mount=type=cache,target=/usr/local/cargo/git/db,sharing=locked \
+    --mount=type=cache,target=/app/.cargo-target,sharing=locked \
+    cargo chef cook --release --locked --recipe-path recipe.json
 
 COPY . .
-RUN cargo build --release --locked --bin termi_api-cli
+RUN --mount=type=cache,target=/usr/local/cargo/registry,sharing=locked \
+    --mount=type=cache,target=/usr/local/cargo/git/db,sharing=locked \
+    --mount=type=cache,target=/app/.cargo-target,sharing=locked \
+    cargo build --release --locked --bin termi_api-cli \
+    && install -Dm755 /app/.cargo-target/release/termi_api-cli /tmp/termi_api-cli
 
 FROM debian:trixie-slim AS runtime
 RUN apt-get update \
@@ -19,7 +31,7 @@ RUN apt-get update \
     && rm -rf /var/lib/apt/lists/*
 
 WORKDIR /app
-COPY --from=builder /app/target/release/termi_api-cli /usr/local/bin/termi_api-cli
+COPY --from=builder /tmp/termi_api-cli /usr/local/bin/termi_api-cli
 COPY --from=builder /app/config ./config
 COPY --from=builder /app/assets ./assets
 COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh