[Change] use dockerfile instead of nixpacks

Dockerfile

@@ -0,0 +1,28 @@
+FROM ubuntu:latest
+
+ENV HUGO_VERSION=0.124.0
+ENV HUGO_ENVIRONMENT=production
+ENV HUGO_ENV=production
+
+RUN apt-get update && apt-get install -y \
+    wget \
+    git \
+    nodejs \
+    npm \
+    && rm -rf /var/lib/apt/lists/*
+
+RUN wget -O /tmp/hugo.deb https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_linux-amd64.deb \
+    && dpkg -i /tmp/hugo.deb \
+    && rm /tmp/hugo.deb
+
+RUN npm install -g sass
+
+WORKDIR /src
+
+COPY . .
+
+RUN [ -f package-lock.json ] && npm ci || echo "No package-lock.json found. Skipping npm ci."
+
+RUN hugo --gc --minify
+
+WORKDIR /src/public

nixpacks.toml

@@ -1,5 +0,0 @@
-[phases.setup]
-nixPkgs = ['hugo']
-
-[phases.build]
-cmds = ['hugo']