Brings integration tests in line with intentional behavior changes from
#46331, #46291, #46341, #46355, #46368 and #46493, moves the Databricks
non-Claude cases off llama-3 names so they no longer download a Hugging Face
tokenizer, drops the unrealistic count_tokens tools=5 case and skips the
Mantle region-prefixed v1 base case as unrealistic input
