feat(docker): add TAXII live reload

[scotluns]

Why

This supports the cross-service hot-reload development workflow by letting TAXII server changes be verified quickly inside the local Compose stack while keeping the runtime path close to the deployed service.

What Changed

• Updates the TAXII development image to Node 22 and keeps production as a separate multi-stage target.
• Adds a dedicated build stage derived from the development image so production still copies built dist output.
• Seeds src for the named volume mount and runs npm run start:dev, which starts Nest watch mode.
• Enables polling with CHOKIDAR_USEPOLLING=true so synced files are detected reliably in Docker.

How To Verify

Start a developer-mode Compose stack with watch enabled from the deployment repo:

./docker/setup-workbench.sh --accept-defaults --dev-mode --taxii-server --instance-name live-reload-smoke
cd instances/live-reload-smoke
docker compose up --watch --build

Verify TAXII reload:

$EDITOR ../../../attack-workbench-taxii-server/src/taxii/controllers/root/root.controller.ts +21

Temporarily change the ping handler to use HttpStatus.OK and return a string, then run:

curl -i http://localhost:8000/health/ping

Confirm the changed response appears after Compose Watch syncs and Nest watch recompiles/restarts the service. Revert the temporary response change before committing.

Related PRs

• Deployment: feat(docker): add live reload workflow attack-workbench-deployment#6

Landing

Merge before the deployment live-reload PR.