[Chore] Add custom CI Docker image with Node.js 24, pnpm 10, and uv (#268)

This is meant to drastically speed up CI because it skips the lengthy installation.

Co-authored-by: jebus <lorsbach@envipath.com>
Reviewed-on: enviPath/enviPy#268
Co-authored-by: Tobias O <tobias.olenyi@envipath.com>
Co-committed-by: Tobias O <tobias.olenyi@envipath.com>

.gitea/docker/Dockerfile.ci

@@ -0,0 +1,47 @@
+# Custom CI Docker image for Gitea runners
+# Pre-installs Node.js 24, pnpm 10, uv, and system dependencies
+# to eliminate setup time in CI workflows
+
+FROM ubuntu:24.04
+
+# Prevent interactive prompts during package installation
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install system dependencies
+RUN apt-get update && \
+    apt-get install -y \
+      postgresql-client \
+      redis-tools \
+      openjdk-11-jre-headless \
+      curl \
+      ca-certificates \
+      gnupg \
+      lsb-release \
+      git \
+      ssh \
+      && rm -rf /var/lib/apt/lists/*
+
+# Install Node.js 24 via NodeSource
+RUN curl -fsSL https://deb.nodesource.com/setup_24.x | bash - && \
+    apt-get install -y nodejs && \
+    rm -rf /var/lib/apt/lists/*
+
+# Enable corepack and install pnpm 10
+RUN corepack enable && \
+    corepack prepare pnpm@10 --activate
+
+# Install uv https://docs.astral.sh/uv/guides/integration/docker/#available-images
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Verify installations
+RUN node --version && \
+    npm --version && \
+    pnpm --version && \
+    uv --version && \
+    pg_isready --version && \
+    redis-cli --version && \
+    java -version
+
+# Set working directory
+WORKDIR /workspace