Add ux profiles and advanced config block

tests/test_aiprocess.py

@@ -14,6 +14,7 @@ import aiprocess
 from aiprocess import (
     _assert_expected_model_checksum,
     _extract_cleaned_text,
+    _profile_generation_kwargs,
     _supports_response_format,
     ensure_model,
 )
@@ -93,6 +94,22 @@ class SupportsResponseFormatTests(unittest.TestCase):
 
         self.assertFalse(_supports_response_format(chat_completion))
 
+    def test_fast_profile_sets_max_tokens_when_supported(self):
+        def chat_completion(*, messages, temperature, max_tokens):
+            return None
+
+        kwargs = _profile_generation_kwargs(chat_completion, "fast")
+
+        self.assertEqual(kwargs, {"max_tokens": 192})
+
+    def test_non_fast_profile_does_not_set_generation_overrides(self):
+        def chat_completion(*, messages, temperature, max_tokens):
+            return None
+
+        kwargs = _profile_generation_kwargs(chat_completion, "polished")
+
+        self.assertEqual(kwargs, {})
+
 
 class ModelChecksumTests(unittest.TestCase):
     def test_accepts_expected_checksum_case_insensitive(self):