fix(web) issue2551382 - 409 not 400 errors returned invalid integer values for @verbose, @page_* values in rest uri's generated a 409 (Update Conflict) error not a generic 400 error. Found it when I was working on adding fuzz testing to check error handling for query parameters in REST url's. This also ads the tests in test_liveserver that found the error. Also refactored tst_liveserver to allow resuse of session login method for the new fuzz testing class as well.

--- a/CHANGES.txt	Sun Dec 15 01:35:51 2024 -0500
+++ b/CHANGES.txt	Sun Dec 15 01:57:42 2024 -0500
@@ -41,6 +41,8 @@
   for client.py-Client::_serve_file(). (John Rouillard)
 - issue2551381 - roundup-server parses URI's with multiple '?"
   incorrectly. (John Rouillard)
+- issue2551382 - invalid @verbose, @page_* values in rest uri's
+  generate 409 not 400 error. (John Rouillard)
 
 Features: