Fix file naming for casing

Author: tmichaeldb

mindsdb_sdk/agents.py

@@ -291,7 +291,7 @@ def add_files(self, name: str, file_paths: List[str], description: str, knowledg
         all_filenames = []
         for file_path in file_paths:
             filename = file_path.split('/')[-1]
-            filename_no_extension = filename.split('.')[0]
+            filename_no_extension = filename.split('.')[0].lower()
             all_filenames.append(filename_no_extension)
             try:
                 _ = self.api.get_file_metadata(filename_no_extension)
@@ -306,14 +306,14 @@ def add_files(self, name: str, file_paths: List[str], description: str, knowledg
         if knowledge_base is not None:
             kb = self.knowledge_bases.get(knowledge_base)
         else:
-            kb_name = f'{name.lower()}_{filename_no_extension.lower()}_{uuid4().hex}_kb'
+            kb_name = f'{name.lower()}_{filename_no_extension}_{uuid4().hex}_kb'
             kb = self._create_default_knowledge_base(agent, kb_name)
 
         # Insert the entire file.
         kb.insert_files(all_filenames)
 
         # Make sure skill name is unique.
-        skill_name = f'{filename_no_extension.lower()}_retrieval_skill_{uuid4().hex}'
+        skill_name = f'{filename_no_extension}_retrieval_skill_{uuid4().hex}'
         retrieval_params = {
             'source': kb.name,
             'description': description,