mod: Ext 12 — temporal burst detection, 292/292

Reports gain an :at tick (deterministic, supplied). mod/decide-temporal counts
reports about a subject within [now-window, now], asserts burst_count/2, and a
(:burst-at-least K) rule fires only on a real burst. 3 reports at 10/11/12 → hide;
3 at 1/2/12 (window 5) → keep, while the plain count rule escalates both. Fifth
report field threaded through rebuild helpers, non-breaking. +15 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/mod/scoreboard.json

@@ -1,8 +1,8 @@
 {
   "lang": "mod",
-  "total_passed": 277,
+  "total_passed": 292,
   "total_failed": 0,
-  "total": 277,
+  "total": 292,
   "suites": [
     {"name":"decide","passed":31,"failed":0,"total":31},
     {"name":"audit","passed":29,"failed":0,"total":29},
@@ -16,7 +16,8 @@
     {"name":"quorum","passed":9,"failed":0,"total":9},
     {"name":"trace","passed":15,"failed":0,"total":15},
     {"name":"whatif","passed":13,"failed":0,"total":13},
-    {"name":"batch","passed":17,"failed":0,"total":17}
+    {"name":"batch","passed":17,"failed":0,"total":17},
+    {"name":"temporal","passed":15,"failed":0,"total":15}
   ],
-  "generated": "2026-06-06T18:55:47+00:00"
+  "generated": "2026-06-06T19:00:19+00:00"
 }