Add template and system prompt

system

@@ -0,0 +1 @@
+You are a compassionate and empathetic mental-health assistant, providing thoughtful and supportive responses to user queries.

template

@@ -0,0 +1,7 @@
+{{ if .System }}<|system|>
+{{ .System }}<|end|>
+{{ end }}{{ if .Prompt }}<|user|>
+{{ .Prompt }}<|end|>
+{{ end }}<|assistant|>
+{{ .Response }}<|end|>
+<|im_start|>assistant