Move uv sync into the same RUN as curl installer

The install script places uv in /usr/local/bin/uv but doesn't modify
the shell's PATH for subsequent RUN layers. Moving uv sync into the
same RUN so the freshly installed binary is immediately usable.

Co-authored-by: Qwen-Coder <qwen-coder@alibabacloud.com>

Dockerfile

@@ -49,7 +49,7 @@ CMD ["python", "main.py", "admin"]
 
 FROM oci.reg.darano.ir/mcr.microsoft.com/playwright:v1.62.0-noble AS worker
 
-# Install Python 3.12 + uv (the Playwright image has browsers but no Python).
+# Install Python 3.12 + uv, then sync deps — all in one RUN so PATH is consistent.
 # Use a mirror for apt since the VPS has network restrictions (Iran).
 # curl is already installed (playwright system dep).
 RUN printf 'Types: deb\nURIs: http://repo.iut.ac.ir/ubuntu/\nSuites: noble noble-updates noble-security\nComponents: main restricted universe multiverse\nSigned-By: /usr/share/keyrings/ubuntu-archive-keyring.gpg\n' \
@@ -58,7 +58,8 @@ RUN printf 'Types: deb\nURIs: http://repo.iut.ac.ir/ubuntu/\nSuites: noble noble
       python3 python3-venv \
     && rm -rf /var/lib/apt/lists/* \
     && curl -LsSf https://astral.sh/uv/install.sh | \
-         UV_INSTALL_DIR=/usr/local sh
+         UV_INSTALL_DIR=/usr/local sh \
+    && /usr/local/bin/uv sync --frozen --no-dev --no-install-project
 
 ENV PATH="/app/.venv/bin:$PATH" \
     PYTHONUNBUFFERED=1 \
@@ -73,9 +74,6 @@ WORKDIR /app
 # Copy manifests first (stable cache layer)
 COPY pyproject.toml uv.lock* ./
 
-# Install project deps into a venv targeting this image's Python 3.12
-RUN uv sync --frozen --no-dev --no-install-project
-
 # Copy app code
 COPY . .