- ExtractorChain now supports per-entry retry (max_retries) and chain-level
timeout (context.WithTimeout), matching MediaProviderChain pattern
- Low quality content breaks out of retry (not transient), errors retry
- Fix ResolveProviderType: skip generic "openai_compat" DB type so
OpenRouter routes via name-based inference to correct /chat/completions
endpoint instead of falling through to /images/generations (caused 404)
- Remove dead "openai_compat" entry from dbTypeToMediaType map
- Seed data: defuddle default max_retries=2