Prevent `cats.node.cli:Port` clash with macOS's AirPlay Receiver / Set `CAT_NODE_PORT` to another port

[JEJodesty]

Error:
ERROR:cats.node.cli:Port 127.0.0.1:5000 is in use by a non-cats.node process (common on macOS: AirPlay Receiver on 5000). Set CAT_NODE_PORT to a free

Temporary Workaround:

• Turn off AirPlay Receiver in macOS's Settings Application

Steps to Reproduce Error:

(base) user@macBookAir cats % make node-up
uv run python data/input/structure/infrastructure/content_store_utils.py ensure
uv run python -m cats.node start
DEBUG:urllib3.connectionpool:Starting new HTTP connection (1): 127.0.0.1:5001
DEBUG:urllib3.connectionpool:http://127.0.0.1:5001/ "POST /api/v0/id HTTP/1.1" 200 None
ERROR:cats.node.cli:Port 127.0.0.1:5000 is in use by a non-cats.node process (common on macOS: AirPlay Receiver on 5000). Set CAT_NODE_PORT to a free port, e.g. `CAT_NODE_PORT=5002 make node-start`.
make: *** [node-start] Error 1

Laptop: MacBook Air (2020)

• OS: macOS - Sonoma 14.5
• Python Version: ?
• Memory: 8G
• CPU: Apple M1
• Serial #: HRTJMJCJ1WFV

Acceptance Crieteria:

• make node-up doesn't produce the error while AirPlay Receiver is Turned on