feat(output): add output generation and formatting module with CSV, metrics, and file management support

Author: artemisTurintech

clustering_toolkit/__init__.py

@@ -6,6 +6,7 @@
 - Data preprocessing and transformation
 - Clustering algorithm implementations
 - Cluster evaluation metrics
+- Output generation and formatting
 - Visualization and reporting
 """
 
@@ -16,5 +17,6 @@
     "preprocessor",
     "clustering",
     "evaluation",
+    "output",
     "visualization",
 ]