feat: scaffold deterministic replayable indexer architecture with core pipeline, models and docker

src/main.py

@@ -0,0 +1,22 @@
+import asyncio
+from src.config import indexer_settings
+
+async def run_indexer_pipeline():
+    """
+    可重放的确定性流水线:
+    Fetcher (拉块) -> Decoder (规范化) -> Processor (业务处理) -> Projection (确定性视图落盘)
+    """
+    print(f"Starting WTFX Indexer for Chain [{indexer_settings.CHAIN_ID}]...")
+    print(f"Target RPC: {indexer_settings.RPC_URL}")
+    
+    current_block = indexer_settings.START_BLOCK
+    while True:
+        # 1. 抓取安全区间块日志 (Fetcher)
+        # 2. 解码并生成 NormalizedEvent (Decoder)
+        # 3. 幂等去重检查 (Idempotency Check)
+        # 4. 业务处理与 Projection 视图更新 (Processor & Projection)
+        # 5. 更新 Checkpoint
+        await asyncio.sleep(indexer_settings.POLL_INTERVAL_SECONDS)
+
+if __name__ == "__main__":
+    asyncio.run(run_indexer_pipeline())