Switch to PyPI rustmatrix wheels (v2.1.1)

rustmatrix is now on PyPI with pre-built manylinux/macOS/Windows ABI3
wheels. Drop the Rust build stage from the Dockerfile (was cloning the
repo and building with maturin) and install directly from PyPI instead.
Also removes the uv.sources path override from pyproject.toml.

Build time drops by ~3-4 minutes on HF.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Dockerfile

@@ -2,10 +2,9 @@
 #
 # Hugging Face Space Docker build for myPSD.
 #
-# Three stages:
-#   1. node:20-alpine      → compile the Vite React SPA
-#   2. rust:1.82-slim      → clone rustmatrix at v1.0.1 and build a Python wheel
-#   3. python:3.11-slim    → install the wheel + FastAPI, copy the SPA, run uvicorn
+# Two stages:
+#   1. node:20-alpine   → compile the Vite React SPA
+#   2. python:3.11-slim → install rustmatrix from PyPI + FastAPI, run uvicorn
 #
 # HF Spaces routes external traffic to whatever port the container listens
 # on via `app_port` in README.md — we use 7860 (the HF default).
@@ -21,38 +20,18 @@ COPY frontend/ ./
 RUN npx vite build --outDir dist --emptyOutDir
 
 
-# ---------- stage 2: build the rustmatrix wheel ----------
-FROM rust:1.82-slim AS rustbuild
-
-RUN apt-get update && apt-get install -y --no-install-recommends \
-        python3 python3-pip python3-venv python3-dev \
-        build-essential pkg-config git \
-    && rm -rf /var/lib/apt/lists/*
-
-RUN python3 -m pip install --break-system-packages "maturin==1.7.*"
-
-WORKDIR /src
-# Pin to the stable release so HF deploys are reproducible.
-ARG RUSTMATRIX_REF=v1.0.1
-RUN git clone --depth 1 --branch ${RUSTMATRIX_REF} \
-        https://github.com/swnesbitt/rustmatrix.git .
-RUN maturin build --release --out /wheels -i python3
-
-
-# ---------- stage 3: runtime ----------
+# ---------- stage 2: runtime ----------
 FROM python:3.11-slim
 
 WORKDIR /app
 
-COPY --from=rustbuild /wheels /wheels
-RUN pip install --no-cache-dir /wheels/*.whl \
- && pip install --no-cache-dir \
+RUN pip install --no-cache-dir \
+        "rustmatrix>=2.1.1" \
         "fastapi>=0.110" \
         "uvicorn[standard]>=0.27" \
         "pydantic>=2.6" \
         "numpy>=1.23" \
-        "scipy>=1.10" \
- && rm -rf /wheels
+        "scipy>=1.10"
 
 # HF Spaces runs the container as uid 1000 with /tmp as the only writable
 # directory by default.

backend/pyproject.toml

@@ -4,7 +4,7 @@ version = "2.0.0"
 description = "FastAPI backend for myPSD — polarimetric radar PSD explorer"
 requires-python = ">=3.10"
 dependencies = [
-    "rustmatrix>=1.0.1",
+    "rustmatrix>=2.1.1",
     "fastapi>=0.110",
     "uvicorn[standard]>=0.27",
     "pydantic>=2.6",
@@ -12,11 +12,6 @@ dependencies = [
     "scipy>=1.10",
 ]
 
-[tool.uv.sources]
-# rustmatrix is not on PyPI yet — build from the sibling checkout.
-# The Dockerfile builds a wheel directly and installs that instead.
-rustmatrix = { path = "../../Radar/rustmatrix", editable = true }
-
 [project.optional-dependencies]
 dev = [
     "pytest>=8.0",