ci: added basic workflows (#2)

Co-authored-by: Sharang Parnerkar <parnerkarsharang@gmail.com>
Reviewed-on: #2

Dockerfile

@@ -0,0 +1,61 @@
+# Stage 1: Generate dependency recipe for caching
+FROM rust:1.89-bookworm AS chef
+RUN cargo install cargo-chef
+WORKDIR /app
+
+FROM chef AS planner
+COPY . .
+RUN cargo chef prepare --recipe-path recipe.json
+
+# Stage 2: Build dependencies + application
+FROM chef AS builder
+
+# Install system dependencies
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    pkg-config libssl-dev curl unzip \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install bun (for Tailwind CSS build step)
+RUN curl -fsSL https://bun.sh/install | bash
+ENV PATH="/root/.bun/bin:$PATH"
+
+# Install dx CLI via cargo-binstall
+RUN curl -L --proto '=https' --tlsv1.2 -sSf \
+    https://raw.githubusercontent.com/cargo-bins/cargo-binstall/main/install-from-binstall-release.sh \
+    | bash
+RUN cargo binstall dioxus-cli@0.7.3 --root /.cargo -y --force
+ENV PATH="/.cargo/bin:$PATH"
+
+# Cook dependencies from recipe (cached layer)
+COPY --from=planner /app/recipe.json recipe.json
+RUN cargo chef cook --release --recipe-path recipe.json
+
+# Copy source and build
+COPY . .
+
+# Ensure styles directory exists for build.rs tailwind step
+RUN mkdir -p styles && touch styles/input.css
+
+# Bundle the fullstack application
+RUN dx bundle --platform fullstack
+
+# Stage 3: Minimal runtime image
+FROM debian:bookworm-slim AS runtime
+
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    ca-certificates libssl3 \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN useradd --create-home --shell /bin/bash app
+USER app
+WORKDIR /home/app
+
+# Copy the bundled output from builder
+COPY --from=builder --chown=app:app /app/target/dx/dashboard/release/web/ ./
+
+EXPOSE 8000
+
+ENV IP=0.0.0.0
+ENV PORT=8000
+
+ENTRYPOINT ["./server"]