Add training_config.json for reproducibility

training/training_config.json

@@ -0,0 +1,13 @@
+{
+  "base_model": "Qwen/Qwen2.5-Coder-14B-Instruct",
+  "method": "LoRA + Unsloth",
+  "num_examples": 12805,
+  "epochs": 2,
+  "total_steps": 1202,
+  "batch_size_per_device": 2,
+  "gradient_accumulation_steps": 8,
+  "effective_batch_size": 16,
+  "trainable_params": 68812800,
+  "trainable_ratio": 0.0046,
+  "notes": "Frontend UI architect SFT \u2013 React + TS + Tailwind, top-tier UI style."
+}