Add LoRA adapter configuration

Provide LoRA adapter configuration required for correct loading and reuse.

adapter_config.json

@@ -0,0 +1,9 @@
+{
+  "peft_type": "LORA",
+  "task_type": "CAUSAL_LM",
+  "r": 16,
+  "lora_alpha": 32,
+  "lora_dropout": 0.05,
+  "bias": "none",
+  "target_modules": ["q_proj", "v_proj"]
+}