kimi 2.5

[FDecaYed]

…ct forward pass

• Rewrite kimi_k25_vl_provider.py (was a duplicate of bridge file) as a proper KimiK25VLModelProvider inheriting from KimiK2Provider
• Fix aux_loss_alpha and media_placeholder_token_id read from wrong config
• Fix token ID defaults to match Kimi K2.5 (not Qwen)
• Fix forward pass: remove breakpoint(), skip transpose when no images, remove _compute_attention_mask (wrong shape after sequence expansion)
• Add KimiK2Provider to models/init.py, remove unused imports

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