feat: add Qwen3-Coder-Next model cards

Add model cards for mlx-community/Qwen3-Coder-Next in 4bit, 5bit,
6bit, 8bit, and bf16 quantizations. Uses Qwen3NextForCausalLM
architecture which already has tensor parallelism support.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

resources/inference_model_cards/mlx-community--Qwen3-Coder-Next-4bit.toml

@@ -0,0 +1,8 @@
+model_id = "mlx-community/Qwen3-Coder-Next-4bit"
+n_layers = 48
+hidden_size = 2048
+supports_tensor = true
+tasks = ["TextGeneration"]
+
+[storage_size]
+in_bytes = 45644286500

resources/inference_model_cards/mlx-community--Qwen3-Coder-Next-5bit.toml

@@ -0,0 +1,8 @@
+model_id = "mlx-community/Qwen3-Coder-Next-5bit"
+n_layers = 48
+hidden_size = 2048
+supports_tensor = true
+tasks = ["TextGeneration"]
+
+[storage_size]
+in_bytes = 57657697020

resources/inference_model_cards/mlx-community--Qwen3-Coder-Next-6bit.toml

@@ -0,0 +1,8 @@
+model_id = "mlx-community/Qwen3-Coder-Next-6bit"
+n_layers = 48
+hidden_size = 2048
+supports_tensor = true
+tasks = ["TextGeneration"]
+
+[storage_size]
+in_bytes = 68899327465

resources/inference_model_cards/mlx-community--Qwen3-Coder-Next-8bit.toml

@@ -0,0 +1,8 @@
+model_id = "mlx-community/Qwen3-Coder-Next-8bit"
+n_layers = 48
+hidden_size = 2048
+supports_tensor = true
+tasks = ["TextGeneration"]
+
+[storage_size]
+in_bytes = 89357758772

resources/inference_model_cards/mlx-community--Qwen3-Coder-Next-bf16.toml

@@ -0,0 +1,8 @@
+model_id = "mlx-community/Qwen3-Coder-Next-bf16"
+n_layers = 48
+hidden_size = 2048
+supports_tensor = true
+tasks = ["TextGeneration"]
+
+[storage_size]
+in_bytes = 157548627945