Adds a 'Verify SSL Certificate' switch on Admin -> ABDM Gateway page,
persisted as hospital_setting.ABDM_BRIDGE_SSL_VERIFY (default ON/secure).
Wired into M3HiuGatewayClient, EAtriaBridgeConnector, and the settings
page's own Test Connection check. Per-machine ABDM_BRIDGE_SSL_VERIFY env
var still overrides this DB setting for deployments needing a quick
local-only workaround. Verification stays on by default everywhere;
disabling it is an explicit, visible opt-in with an on-page warning.
Some local WAMP/XAMPP/Laragon PHP installs ship an outdated cacert.pem,
causing outbound HTTPS calls to the bridge to fail with cURL error 60
(SSL certificate problem). Rather than globally disabling certificate
verification (as bridge support suggested), verification stays ON by
default and can only be disabled per-deployment by explicitly setting
ABDM_BRIDGE_SSL_VERIFY=false in that machine's .env. The real fix on
affected machines is updating curl.cainfo in php.ini.
