Create app.py

Add Clarus benchmark app and zero-stimulus scorer

app.py

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+import gradio as gr
+from coherence_under_zero_stimulus_v01.scorer import zus_score
+
+def score_response(prompt, completion):
+    r = zus_score(prompt, completion)
+    return {
+        "score_0_100": r.score_0_100,
+        "details": r.details
+    }
+
+demo = gr.Interface(
+    fn=score_response,
+    inputs=[
+        gr.Textbox(label="Prompt", lines=3),
+        gr.Textbox(label="Model Output", lines=6),
+    ],
+    outputs=gr.JSON(label="Clarus Score"),
+    title="Clarus Benchmark – Coherence Under Zero Stimulus",
+    description="Measures restraint and clarity when task signal is missing."
+)
+
+demo.launch()