test-llama-archs : make tensor data stdev configurable and improve help (#29133)
* test-llama-archs : make tensor data stdev configurable
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-llama-archs : expand usage and add examples
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-llama-archs : fail on unknown args and log usage
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-llama-archs : add test run summary
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-llama-archs : initialize Mamba ssm_a negative
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-recurrent-state-rollback : report NMSE for logits mismatches
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* test-recurrent-state-rollback : use NMSE for rollback logits checks
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* tests : disable invalid test
* cont : adjust nmse_eps
* tests : zero DSA indexer score projection in synthetic fixtures
Assisted-by: pi:llama.cpp/DeepSeek-V4-Flash-Vision-Exp
* cont : add support for `--arch` regex
* cont : alternative top-k stability
* cont : indentation
* cont : fix top-k value
* cont : consistent logs