fix: resolve uv installation in Docker container

- Fix uv installation path from /root/.cargo/bin to /root/.local/bin
- Move uv and uvx binaries to /usr/local/bin for all users
- Fix build order to copy source before installing package
- Container now starts successfully with uv available

Dockerfile

@@ -14,10 +14,9 @@ SHELL ["/bin/bash", "-o", "pipefail", "-c"]
 RUN apt-get update && apt-get install -y --no-install-recommends \
     curl \
     && curl -LsSf https://astral.sh/uv/install.sh | sh \
-    && rm -rf /var/lib/apt/lists/*
-
-# Add uv to PATH
-ENV PATH="/root/.cargo/bin:$PATH"
+    && mv /root/.local/bin/uv /usr/local/bin/uv \
+    && mv /root/.local/bin/uvx /usr/local/bin/uvx \
+    && rm -rf /var/lib/apt/lists/* /root/.local
 
 # Create app user
 RUN groupadd --gid 1000 app && \
@@ -26,16 +25,13 @@ RUN groupadd --gid 1000 app && \
 # Set work directory
 WORKDIR /app
 
-# Copy dependency files
-COPY pyproject.toml uv.lock ./
+# Copy source code
+COPY . .
 
 # Install dependencies with uv
 RUN uv venv && \
     uv pip install -e ".[web]"
 
-# Copy source code
-COPY . .
-
 # Make scripts executable
 RUN chmod +x unitforge-cli start-server.sh demo.sh 2>/dev/null || true