Untrack daten.md (credentials)

daten.md holds credentials and must never be versioned; 91ad5e6 committed it together with the search cards.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

@@ -128,3 +128,4 @@ CLAUDE.local.md
 # workbook feeds which product record.
 migrations/products_xlsx/*
 !migrations/products_xlsx/manifest.json
+/daten.md

daten.md

@@ -1,3 +0,0 @@
-solr
-9*p3^fI^EBuzf8oY
-