Align documentation and Docker configuration with current implementation

- Fix README.md: Make Docker deployment recommended, remove duplicate installation section
- Fix Dockerfile: Copy correct source files (unraid_mcp/, uv.lock, README.md) instead of non-existent unraid_mcp_server.py
- Update docker-compose.yml: Enable build configuration and use .env instead of .env.local
- Add missing environment variables to .env.example and .env: UNRAID_AUTO_START_SUBSCRIPTIONS, UNRAID_MAX_RECONNECT_ATTEMPTS
- Fix CLAUDE.md: Correct environment hierarchy documentation (../env.local → ../.env.local)
- Remove unused unraid-schema.json file

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -7,12 +7,16 @@ WORKDIR /app
 # Install uv
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /usr/local/bin/
 
-# Copy the project files
+# Copy dependency files
 COPY pyproject.toml .
-COPY unraid_mcp_server.py .
+COPY uv.lock .
+COPY README.md .
 
-# Install dependencies
-RUN uv sync --frozen --no-dev
+# Copy the source code
+COPY unraid_mcp/ ./unraid_mcp/
+
+# Install dependencies and the package
+RUN uv sync --frozen
 
 # Make port UNRAID_MCP_PORT available to the world outside this container
 # Defaulting to 6970, but can be overridden by environment variable