Fix Space metadata and publish core test

README.md

@@ -1,13 +1,20 @@
 ---
 title: SimamAnything2GS
-emoji: 📚
-colorFrom: gray
-colorTo: red
+emoji: ✨
+colorFrom: blue
+colorTo: blue
 sdk: gradio
-sdk_version: 6.27.0
-python_version: '3.13'
 app_file: app.py
-pinned: false
 ---
 
-Check out the configuration reference at https://huggingface.co/docs/hub/spaces-config-reference
+# SimamAnything2GS
+
+An ingest-first workbench for turning arbitrary images and videos into a
+reproducible Gaussian-reconstruction job. The initial release deliberately
+exports a CPU-only 2.5D billboard preview so the upload, hashing, and artifact
+contract can be tested without model weights or GPU allocation.
+
+The preview is not a 3D reconstruction. Future adapters can add video frame
+sampling, depth/pose estimation, multi-view fusion, and Gaussian optimization
+behind the same manifest. Each adapter must report its model, runtime, input
+hashes, and held-out-view metrics.