artifact update: multi_seed_streaming.json

multi_seed_streaming.json

@@ -0,0 +1,29 @@
+{
+  "seeds": [
+    42,
+    7,
+    123
+  ],
+  "per_seed": [
+    {
+      "seed": 42,
+      "macro_f1_tuned": 0.5708,
+      "trials": 30
+    },
+    {
+      "seed": 7,
+      "macro_f1_tuned": 0.5697,
+      "trials": 25
+    },
+    {
+      "seed": 123,
+      "macro_f1_tuned": 0.5765,
+      "trials": 25
+    }
+  ],
+  "tuned_mean_std": [
+    0.5723,
+    0.003
+  ],
+  "note": "streaming-modality detector; identical protocol per seed (spec \u00a73.4)"
+}