docs: update README.md with caveman style and HF metadata

README.md

@@ -4,17 +4,38 @@ emoji: 🚀
 colorFrom: blue
 colorTo: purple
 sdk: docker
+app_port: 8086
 pinned: false
 ---
 
-# Vera Engine
+# Vera Engine 🤖
 
-Merchant AI assistant ("Vera") optimized for magicpin judge simulator.
+Merchant AI assistant ("Vera") optimized for magicpin judge simulator.  
+**Target Score:** >40/50 (Platinum Logic v37).
 
-## Deployment
+## Features 🛠️
 
-Pushed automatically from GitHub via GitHub Actions.
+*   **Grounding:** Strict metric whitelisting. Zero fabrication.
+*   **Persona:** Dr. Persona for dentists. Growth Strategist for others.
+*   **Character Cap:** Strict 320 max (Target 280-310).
+*   **Language:** 60/40 English-Hindi code-mix when `hi` requested.
+*   **Logic:** Multi-context orchestration. deterministic output.
 
-## SDK
-- **SDK**: Docker
-- **Port**: 8086
+## Tech Stack 💻
+
+*   **Runtime:** Python 3.10-slim + Docker.
+*   **API:** OpenRouter (Gemini 2.0 Flash Lite / Llama 3.3 70B).
+*   **Server:** Fast server on port 8086.
+
+## Deployment 🚀
+
+1.  Push to `main`.
+2.  GitHub Action sync to HF Spaces via Git.
+3.  Auto-build Docker image on Space.
+
+## Local Test 🧪
+
+```bash
+python main.py             # Logic check
+python judge_simulator.py  # Eval score
+```