BlogGen Connector v1.1.12 — Discussion Defaults Lockdown

Fixes:
- Forces comments closed on BlogGen-published posts.
- Forces trackbacks and pingbacks closed on BlogGen-published posts.
- Applies the closed status during insert/update and again immediately after save as a safety pass.
- Prevents the client site's WordPress discussion defaults from reopening comments/pings on BlogGen content.
- Keeps v1.1.11 category and live publish reliability fixes.
