correlator: a radio code is not a location

A 09-22 replay stop was titled "Traffic Stop at 96 times 5" — a disposition
code read aloud, extracted as the location (server-26#170). clean_location
now rejects "N times N", ten-codes, "signal N", "code N", "condition N".

c2-core: 476 pass.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

drb-c2-core/app/internal/incident_correlator.py

@@ -343,9 +343,21 @@ def clean_location(value) -> Optional[str]:
     s = str(value).strip()
     if not s or not _LOCATION_WORD_RE.search(s):
         return None
+    if _RADIO_CODE_RE.match(s):
+        return None
     return s
 
 
+# Status/disposition codes the extractor sometimes returns as a location:
+# "96 times 5" (a disposition code read aloud) titled a 09-22 replay stop
+# "Traffic Stop at 96 times 5" (server-26#170); "10-8", "signal 99", "code 4"
+# are the same shape.
+_RADIO_CODE_RE = re.compile(
+    r"^\s*(?:\d{1,3}\s*(?:times|x)\s*\d{1,3}|10[\s-]?\d{1,3}|(?:signal|code|condition)\s+\d{1,3})\s*$",
+    re.IGNORECASE,
+)
+
+
 def location_is_unit(location, units) -> bool:
     """
     True when a location label is really one of the incident's own unit

drb-c2-core/tests/test_clearance_tracking.py

@@ -154,3 +154,10 @@ def test_plate_read_on_a_patrol_channel_is_a_stop():
     # not on rail/bridge channels, and not without digits
     assert b("Frank David Boy 4514", [], None, "routine", "MTA Bridges and Tunnels - Whitestone") == ([], None, "routine")
     assert b("Charlie, David, go ahead.", [], None, "routine", ch) == ([], None, "routine")
+
+
+def test_radio_codes_are_not_locations():
+    for junk in ("96 times 5", "96 x 1", "10-8", "Signal 99", "code 4"):
+        assert ic.clean_location(junk) is None, junk
+    for place in ("West Main Street", "Route 9", "96 Main Street", "Exit 17 southbound"):
+        assert ic.clean_location(place) == place, place