Fix trust remote code

[Etherll]

This PR introduces a new boolean flag unsloth_force_compile (defaulting to False) to FastModel.from_pretrained.

When set to True, this flag forces Unsloth's compilation and patching steps (unsloth_compile_transformers) to run even if trust_remote_code=True. Previously, trust_remote_code=True would always skip these steps due to potential tracing issues and return this error:

--> 666     model_types, supports_sdpa = unsloth_compile_transformers(
    667         dtype                   = dtype,
    668         model_name              = model_name,
    669         model_types             = model_types,
    670         token                   = token,
    671         sdpa_dynamic_mask       = True,
    672         sdpa_bool_masks         = True,
    673         sdpa_gqa_replace        = True,
    674         sdpa_dynamic_compile    = True,
    675         compile_attention       = True,
    676         disable_causal_masks    = True,
    677         compile_torch_modules   = True,
    678         compile_custom_modules  = True,
    679         compile_function_calls  = True,
    680         fuse_lm_head            = True,
    681         gradient_checkpointing  = True,
    682         manual_replacements     = True,
    683         fast_lora_forwards      = True,
    684         fast_residual_stream    = False,
    685         accurate_accumulation   = True,
    686         epilogue_fusion         = True,
    687         max_autotune            = False,
    688         shape_padding           = True,
    689         cudagraphs              = False,
    690         debug                   = False,
    691         fullgraph               = fullgraph,
    692         import_from_cache       = False,
    693         disable                 = False,
    694         return_logits           = return_logits,
    695         trust_remote_code       = trust_remote_code,
    696     )
    697 pass
    699 # Check if this is local model since the tokenizer gets overwritten

TypeError: cannot unpack non-iterable NoneType object

Additionally, this PR improves the propagation and usage of the trust_remote_code flag, particularly within the vision model patching logic (unsloth/models/vision.py), ensuring it's consistently applied.