feat: Collect .md files from daily notes directory

main.py

@@ -7,7 +7,19 @@ logging.basicConfig(
 NOTES_DIR = '/home/tanner/notes-git/notes'
 
 def collect_daily_notes():
-    pass
+    daily_notes_path = os.path.join(NOTES_DIR, 'Daily Notes')
+    if not os.path.isdir(daily_notes_path):
+        logging.error(f"Directory not found: {daily_notes_path}")
+        return []
+
+    try:
+        all_files = os.listdir(daily_notes_path)
+        md_files = [f for f in all_files if os.path.isfile(os.path.join(daily_notes_path, f)) and f.endswith('.md')]
+        logging.debug(f"Found .md files: {md_files}")
+        return md_files
+    except OSError as e:
+        logging.error(f"Error accessing directory {daily_notes_path}: {e}")
+        return []
 
 def main():
     collect_daily_notes()