f60edb42f7
The LLM occasionally generates source references with letter suffixes (e.g. [1383a], [1396b]) despite being instructed not to. This caused broken links because the sources array only contained integer nr values. Backend: Add _sanitize_sources() to strip letter suffixes after parsing and deduplicate, preferring entries with valid URLs. Frontend: Add fallback in citation renderer - when a suffix reference like [1383a] has no matching source with URL, fall back to the base number [1383]. Also cleaned up 99 broken suffix entries and 44 suffix references in the Irankonflikt incident (ID 6) database records. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>