refactor: extract verisimdb-data from source repo tracking

verisimdb-data/ contained application-specific data (scan results,
dispatch logs, recipes, bot directives) that belongs in its own
standalone repo, not embedded in the database source code.

- Remove verisimdb-data/ from git tracking (git rm --cached)
- Add /verisimdb-data/ to .gitignore
- Files preserved on disk, migrated to standalone verisimdb-data repo

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.gitignore

@@ -102,6 +102,9 @@ temp/
 /data/
 /storage/
 
+# verisimdb-data is its own repo — do not track here
+/verisimdb-data/
+
 # Container build artifacts
 *.tar