1707b2e6e1
Add NEXTCLOUD_VERIFY_SSL and NEXTCLOUD_CA_BUNDLE env vars to configure TLS certificate verification for all outbound Nextcloud connections. Centralizes SSL config via a new HTTP client factory (http.py) used by all 27 Nextcloud-bound call sites, including API clients, OIDC endpoints, OAuth flows, and health checks. Closes #560 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>