CMS healthcare portals (NPPES, PECOS, I&A) block datacenter IPs, so the
healthcare browser automation needs to egress via the residential proxy on
hg409y7ez04.sn.mynetname.net (username 'performancewest').
- undetected_browser: use_proxy now accepts an env-var name, so callers can
select a domain-specific proxy. _proxy_config(proxy_env) reads it and falls
back to UNDETECTED_PROXY_URL. Healthcare uses 'HEALTHCARE_PROXY_URL'.
- probe_npi_undetected: launches with use_proxy='HEALTHCARE_PROXY_URL' when set.
- npi_provider: documents that the (future) automated NPPES/PECOS flows must
use the healthcare proxy.
- Plumb HEALTHCARE_PROXY_URL (+ UNDETECTED_PROXY_URL fallback) through the
ansible env template and docker-compose workers env.
The credential itself is NOT in the repo. Set the full URL in the ansible
vault as vault_healthcare_proxy_url:
socks5://performancewest:<password>@hg409y7ez04.sn.mynetname.net:<port>
Verified parsing + Playwright proxy-dict wiring with a unit test.
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