fix: make adapter config portable

adapter_config.json

@@ -1,41 +1,9 @@
 {
-    "adapter_path": "adapters/qwen25-coder-3b-sql-create-context-lora-run2",
-    "batch_size": 2,
-    "clear_cache_threshold": 0,
-    "config": "/Users/karneshmehra/Projects/posttrain/configs/lora.yaml",
-    "data": "data/processed/mlx_chat",
-    "fine_tune_type": "lora",
-    "grad_accumulation_steps": 4,
-    "grad_checkpoint": true,
-    "iters": 2500,
-    "learning_rate": 1e-05,
-    "lora_parameters": {
-        "rank": 16,
-        "dropout": 0.05,
-        "scale": 32.0
-    },
-    "lr_schedule": null,
-    "mask_prompt": true,
-    "max_seq_length": 2048,
-    "model": "mlx-community/Qwen2.5-Coder-3B-Instruct-4bit",
-    "num_layers": 16,
-    "optimizer": "adam",
-    "optimizer_config": {
-        "adam": {},
-        "adamw": {},
-        "muon": {},
-        "sgd": {},
-        "adafactor": {}
-    },
-    "project_name": null,
-    "report_to": null,
-    "resume_adapter_file": null,
-    "save_every": 100,
-    "seed": 20260914,
-    "steps_per_eval": 200,
-    "steps_per_report": 10,
-    "test": false,
-    "test_batches": 500,
-    "train": true,
-    "val_batches": 25
-}
+  "fine_tune_type": "lora",
+  "num_layers": 16,
+  "lora_parameters": {
+    "rank": 16,
+    "dropout": 0.05,
+    "scale": 32.0
+  }
+}