chore: track docs.db and reports.db in git

Re-allow docs/docs.db and txt/reports.db via .gitignore negation
so the project SQLite databases are version-controlled.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -61,6 +61,10 @@ prisma/dev.db
 prisma/dev.db-journal
 *.db
 *.sqlite
+
+# Re-track project SQLite databases
+!docs/docs.db
+!txt/reports.db
 *.sqlite3
 
 # Generated Prisma schema (produced by dbal/shared/tools/codegen/gen_prisma_schema.js)