feat(metrics): export ROUGE and readability from module

src/veritext/metrics/__init__.py

@@ -1,9 +1,17 @@
-"""Metrics module: BLEU, lexical similarity, and batch processing."""
+"""Metrics module: BLEU, ROUGE, lexical similarity, readability, and batch processing."""
 
 from veritext.metrics.base import AggregateStats, BatchResult, Metric
 from veritext.metrics.bleu import Bleu
 from veritext.metrics.lexical import Lexical
-from veritext.metrics.results import BleuResult, LexicalResult
+from veritext.metrics.readability import Readability
+from veritext.metrics.results import (
+    BleuResult,
+    LexicalResult,
+    ReadabilityResult,
+    RougeResult,
+    RougeScore,
+)
+from veritext.metrics.rouge import Rouge
 
 __all__ = [
     "AggregateStats",
@@ -13,4 +21,9 @@ __all__ = [
     "Lexical",
     "LexicalResult",
     "Metric",
+    "Readability",
+    "ReadabilityResult",
+    "Rouge",
+    "RougeResult",
+    "RougeScore",
 ]