Relocate ChatFormat classes to model.format package

Move format classes from auxiliary.format to model.format to fix dependency direction. These classes are only used by model classes, so co-locating them improves package cohesion.

Author: orionpapadakis

src/main/java/com/example/model/Model.java

@@ -1,7 +1,7 @@
 package com.example.model;
 
 import com.example.auxiliary.LastRunMetrics;
-import com.example.auxiliary.format.ChatFormat;
+import com.example.model.format.ChatFormat;
 import com.example.inference.InferenceEngine;
 import com.example.inference.sampler.Sampler;
 import com.example.Options;

src/main/java/com/example/auxiliary/format/ChatFormat.java renamed to src/main/java/com/example/model/format/ChatFormat.java

@@ -1,4 +1,4 @@
-package com.example.auxiliary.format;
+package com.example.model.format;
 
 import com.example.tokenizer.impl.LlamaTokenizer;
 import com.example.tokenizer.impl.MistralTokenizer;

src/main/java/com/example/auxiliary/format/LlamaChatFormat.java renamed to src/main/java/com/example/model/format/LlamaChatFormat.java

@@ -1,7 +1,6 @@
-package com.example.auxiliary.format;
+package com.example.model.format;
 
 import com.example.tokenizer.impl.LlamaTokenizer;
-import com.example.tokenizer.impl.Tokenizer;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/com/example/auxiliary/format/MistralChatFormat.java renamed to src/main/java/com/example/model/format/MistralChatFormat.java

@@ -1,4 +1,4 @@
-package com.example.auxiliary.format;
+package com.example.model.format;
 
 import com.example.tokenizer.impl.MistralTokenizer;