chore: update README frontmatter to Hugging Face Spaces config (sdk_version, app_file, pinned)

README.md

@@ -4,11 +4,13 @@ emoji: "🧠"
 colorFrom: "indigo"
 colorTo: "purple"
 sdk: "docker"
+sdk_version: "latest"
+app_file: "app.py"
 python_version: "3.11"
 suggested_hardware: "cpu-basic"
 suggested_storage: "small"
 app_port: 8080
-short_description: "Memory-optimized Retrieval-Augmented Generation (RAG) app for corporate policy Q&A."
+short_description: "Memory-optimized RAG app for corporate policies"
 tags:
   - RAG
   - retrieval
@@ -17,9 +19,11 @@ tags:
   - onnx
   - flask
   - docker
+pinned: false
 disable_embedding: false
 startup_duration_timeout: "1h"
 fullWidth: true
+
 ---
 
 # MSSE AI Engineering Project