Initial commit: repo-vis — 3D codebase visualization

Rust (axum) backend with git clone / zip upload / SQLite cache.
Three.js frontend with D3 treemap layout and semantic zoom.
Docker deployment with musl static binary.

Dockerfile

@@ -0,0 +1,21 @@
+# Stage 1: Build frontend
+FROM node:22-slim AS frontend
+WORKDIR /build
+COPY web/package.json web/package-lock.json ./
+RUN npm ci
+COPY web/ ./
+RUN npm run build
+
+# Stage 2: Minimal runtime (binary built locally with musl)
+FROM alpine:3.21
+RUN apk add --no-cache git ca-certificates
+
+WORKDIR /app
+COPY server/target/x86_64-unknown-linux-musl/release/repo-vis-server ./
+COPY --from=frontend /build/dist ./web/dist/
+
+ENV PORT=8080
+ENV FRONTEND_DIR=./web/dist
+EXPOSE 8080
+
+CMD ["./repo-vis-server"]