feat(app): remove docker compose, build standalone images

Dockerfile

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+FROM node:24.5.0-slim AS builder
+
+RUN apt-get update && apt-get install -y python3 python3-pip sqlite3 && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /home/perplexica
+
+COPY package.json yarn.lock ./
+RUN yarn install --frozen-lockfile --network-timeout 600000
+
+COPY tsconfig.json next.config.mjs next-env.d.ts postcss.config.js drizzle.config.ts tailwind.config.ts ./
+COPY src ./src
+COPY public ./public
+COPY drizzle ./drizzle
+
+RUN mkdir -p /home/perplexica/data
+RUN yarn build
+
+FROM node:24.5.0-slim
+
+RUN apt-get update && \
+    apt-get install -y \
+    python3 \
+    python3-pip \
+    python3-venv \
+    python3-dev \
+    sqlite3 \
+    git \
+    build-essential \
+    libxslt-dev \
+    zlib1g-dev \
+    libffi-dev \
+    libssl-dev \
+    uwsgi \
+    uwsgi-plugin-python3 \
+    curl \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /home/perplexica
+
+COPY --from=builder /home/perplexica/public ./public
+COPY --from=builder /home/perplexica/.next/static ./public/_next/static
+COPY --from=builder /home/perplexica/.next/standalone ./
+COPY --from=builder /home/perplexica/data ./data
+COPY drizzle ./drizzle
+
+RUN mkdir /home/perplexica/uploads
+
+RUN useradd --system --home-dir /usr/local/searxng --shell /bin/sh searxng
+
+WORKDIR /usr/local/searxng
+RUN git clone https://github.com/searxng/searxng.git . && \
+    python3 -m venv venv && \
+    . venv/bin/activate && \
+    pip install --upgrade pip setuptools wheel pyyaml && \
+    pip install -r requirements.txt && \
+    pip install uwsgi
+
+RUN mkdir -p /etc/searxng
+COPY searxng/settings.yml /etc/searxng/settings.yml
+COPY searxng/limiter.toml /etc/searxng/limiter.toml
+COPY searxng/uwsgi.ini /etc/searxng/uwsgi.ini
+
+RUN chown -R searxng:searxng /usr/local/searxng /etc/searxng
+
+WORKDIR /home/perplexica
+COPY entrypoint.sh ./entrypoint.sh
+RUN chmod +x ./entrypoint.sh
+RUN sed -i 's/\r$//' ./entrypoint.sh || true
+
+EXPOSE 3000 8080
+
+ENV SEARXNG_API_URL=http://localhost:8080
+
+CMD ["/home/perplexica/entrypoint.sh"]