Add Flutter Gemma conversion metadata

flutter_gemma/conversion_metadata.json

@@ -0,0 +1,23 @@
+{
+  "source_model_id": "phattrandeveloper/functiongemma-270m-function-calling",
+  "target_repo_id": "phattrandeveloper/functiongemma-270m-function-calling",
+  "artifact_name": "functiongemma-270m-function-calling",
+  "format": "MediaPipe .task",
+  "flutter_gemma_model_file_type": "ModelFileType.task",
+  "flutter_gemma_model_type": "ModelType.functionGemma",
+  "gemma3_size": "270m",
+  "quantize": "dynamic_int8",
+  "prefill_seq_len": 2048,
+  "kv_cache_max_len": 4096,
+  "bundled_prompt_template": false,
+  "tflite_model": "/content/artifacts/flutter_gemma/functiongemma-270m-function-calling/litert/functiongemma-270m-function-calling_q8_ekv4096.tflite",
+  "task_file": "/content/artifacts/flutter_gemma/functiongemma-270m-function-calling/functiongemma-270m-function-calling.task",
+  "task_size_bytes": 284244050,
+  "task_sha256": "068757b3c6fe9ec8182fe11c2eb612423a0d77ff42cae20142476aff10f99820",
+  "created_at_utc": "2026-06-05T21:18:18.925357+00:00",
+  "references": [
+    "https://ai.google.dev/gemma/docs/conversions/hf-to-mediapipe-task",
+    "https://ai.google.dev/edge/mediapipe/solutions/genai/llm_inference",
+    "https://pub.dev/packages/flutter_gemma"
+  ]
+}