feat: add Max Tokens and Context Window Setting Options for Ollama Channel (#1694)

* Update main.go with max_tokens param

* Update model.go with max_tokens param

* Update model.go

* Update main.go

* Update main.go

* Adds num_ctx param for Ollama Channel

* Added num_ctx param for ollama adapter

* Added num_ctx param for ollama adapter

* Improved data process logic

relay/adaptor/ollama/model.go

@@ -7,6 +7,8 @@ type Options struct {
 	TopP             float64 `json:"top_p,omitempty"`
 	FrequencyPenalty float64 `json:"frequency_penalty,omitempty"`
 	PresencePenalty  float64 `json:"presence_penalty,omitempty"`
+	NumPredict  	 int 	 `json:"num_predict,omitempty"`
+	NumCtx  	 int 	 `json:"num_ctx,omitempty"`
 }
 
 type Message struct {