chore: add smoke test and debug logs requested by christian

fix: replace buggy native chat method with custom generate pipeline

fix: switch back to native chat method to avoid generation bugs

fix: logic error in response parsing and add debug logs

fix: remove forced ChatML template and parse native tags

fix: set use_cache=False to prevent kv-cache tensor shape mismatch crashes

fix: replace buggy model.chat() regex with custom generation pipeline

fix: update chat template to use ChatML format instead of legacy tags

fix: inject official MiniCPM chat template to prevent garbage hallucinated outputs

fix: switch to official MiniCPM .chat() method to fix gibberish output

fix: use returned input_ids length for slicing position_ids in monkeypatch

fix: monkeypatch MiniCPM prepare_inputs_for_generation to prevent position_ids broadcasting crash

fix: correctly extract input_ids from BatchEncoding UserDict to prevent generate shape crash

fix: pass only input_ids to Core Router generate to prevent PyTorch attention shape mismatch

fix: use eager attention for MiniCPM4.1-8B to prevent SDPA crash, fix Nemotron Parse processor format

fix: add cv2/albumentations for Nemotron Parse, fix Core Router generate kwargs shape error

fix: switch Core Router to AutoModelForCausalLM for generate support, fix Nemotron Parse inference with AutoProcessor

fix: block flash_attn at runtime with sys.modules=None to prevent FA2 on HF ZeroGPU where flash_attn is pre-installed

fix: resolve infinite recursion in flash_attn patch by capturing original get_imports before patching

fix: replace flash_attn mock with get_imports patch to properly disable FA2 for MiniCPM4.1-8B and Nemotron Parse

fix: use correct AutoModelForImageTextToText+AutoProcessor for MiniCPM-V-4.6, eager attn for Core Router

fix: use AutoModelForCausalLM for vision, add sdpa attn for Core Router, add open_clip_torch dep

fix: correct vision model dtype, Nemotron Parse model ID, and patch missing is_torch_fx_available

fix: implement lazy loading for Core Router to prevent Space startup timeout

fix: correct MiniCPM-V-4.6 model ID and switch Core Router to AutoModel to resolve ModelWrapper crash

fix: resolve Core Router crash by removing attn_implementation override on MiniCPM4.1-8B

feat: add OpenBMB Core Router (MiniCPM4.1-8B) and wire it to Gradio UI