Fix .gbkb structure: move markdown files into subfolders

KB files must be inside topic folders, not at .gbkb root level.
Structure: bot.gbkb/topic-name/document.md

default.gbai/default.gbot/config.csv

@@ -30,6 +30,11 @@ embedding-url,http://localhost:8082
 embedding-model,../../../../data/llm/bge-small-en-v1.5-f32.gguf
 ,
 # ============================================================================
+# VECTOR DATABASE CONFIGURATION
+# ============================================================================
+vectordb-url,https://localhost:6333
+,
+# ============================================================================
 # LLM SERVER CONFIGURATION
 # ============================================================================
 llm-server,true