Add Qwen235 state replay diagnosis

runs/frontier-fidelity-envelope-v1/plot_qwen235_state_matched_diagnosis_mock.py

@@ -0,0 +1,43 @@
+#!/usr/bin/env python3
+"""Render the reviewed schematic for Qwen235 state-matched diagnosis."""
+
+from pathlib import Path
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+
+OUTPUT = Path(__file__).with_name("qwen235-state-matched-diagnosis-mock.png")
+
+
+def main() -> None:
+    figure, axes = plt.subplots(1, 2, figsize=(11.2, 4.4))
+
+    labels = ["TP4/EP1", "TP8/EP8"]
+    x = np.arange(2)
+    width = 0.34
+    axes[0].bar(x - width / 2, [5, 12], width, label="Real proxy (mock)")
+    axes[0].bar(x + width / 2, [8, 8], width, label="Frontier ledger (mock)")
+    axes[0].set_xticks(x, labels)
+    axes[0].set_ylabel("Active decode requests / iteration")
+    axes[0].set_title("(a) Does Frontier reproduce real state?")
+    axes[0].legend(frameon=False)
+
+    scenarios = ["Observed\nA1", "Matched state\nif H1", "Matched state\nif H2", "Real"]
+    contrasts = [-20.07, 4.0, -18.0, 6.95]
+    colors = ["#d95f02", "#1b9e77", "#d95f02", "#1b9e77"]
+    axes[1].bar(np.arange(4), contrasts, color=colors)
+    axes[1].axhline(0, color="black", linewidth=0.9)
+    axes[1].set_xticks(np.arange(4), scenarios)
+    axes[1].set_ylabel("TP8 - TP4 TPOT (ms/token)")
+    axes[1].set_title("(b) State mismatch or execution model?")
+    axes[1].text(0.02, 0.97, "SCHEMATIC / MOCK DATA", transform=axes[1].transAxes,
+                 va="top", fontsize=9, color="#8c2d04")
+
+    figure.suptitle("Qwen235 Fixed-PD state-matched diagnosis", fontsize=13)
+    figure.tight_layout()
+    figure.savefig(OUTPUT, dpi=180, bbox_inches="tight")
+
+
+if __name__ == "__main__":
+    main()