Speed up local dev environment setup

[rothnic]

These instructions show a very serial setup of the dev environment. The long docker download process could be running while we are generating the openapi mcp server in parallel. Consider how we could show this in the console. Is there some kind of pretty task running thing to run all commands to run the dev env in parallel, but you can still see the logs from them?

git clone https://github.com/rothnic/windmill-mcp.git
cd windmill-mcp

# Install dependencies
npm install

# Start local Windmill instance and set up everything
npm run dev:setup

# This will:
# 1. Start Windmill in Docker
# 2. Wait for it to be ready
# 3. Fetch OpenAPI spec from running instance
# 4. Generate MCP server code
# 5. Build the generated code

# In another terminal, run the MCP server
npm run dev:mcp