ci: deploy Firestore rules with a service account, not login:ci (#51)

The deploy-firestore-rules job has failed on every push because
FIREBASE_TOKEN was never set, so rule changes (e.g. aircraft/vessels for
node-26#9) never reached prod. Switch to a dedicated least-privilege
service account whose JSON key lives in FIREBASE_SA_KEY; login:ci tokens
are deprecated and carry their minter's full access. Key is written to
RUNNER_TEMP at 0600 and removed on exit.

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

.gitea/workflows/deploy.yml

@@ -307,28 +307,30 @@ jobs:
 
       - name: Deploy firestore rules and indexes
         env:
-          FIREBASE_TOKEN: ${{ secrets.FIREBASE_TOKEN }}
+          FIREBASE_SA_KEY: ${{ secrets.FIREBASE_SA_KEY }}
         run: |
           set -e
           # server-26#51: this used to run over SSH on the deploy VM, gated
           # on the VM having firebase-tools installed. It never did, so it
           # silently warned-and-skipped on every single deploy for weeks.
-          # Running it here instead means the only prerequisite is a secret
-          # -- FIREBASE_TOKEN, from `firebase login:ci` -- rather than
-          # something installed by hand on a machine this pipeline doesn't
-          # otherwise touch. A missing token now fails this job LOUDLY
-          # (picked up by notify-failure) instead of a buried warning line
-          # nobody reads in the app deploy's logs.
-          if [ -z "$FIREBASE_TOKEN" ]; then
-            echo "FIREBASE_TOKEN secret is not set -- cannot deploy Firestore rules/indexes." >&2
-            echo "Generate one with 'firebase login:ci' and add it as a Gitea Actions secret." >&2
+          # Auth is a dedicated service account (drb-ci-firestore-deploy,
+          # roles: Firebase Rules Admin, Cloud Datastore Index Admin,
+          # Service Usage Consumer), its JSON key stored as the
+          # FIREBASE_SA_KEY secret. Not `firebase login:ci`: those tokens are
+          # deprecated and carry the full permissions of whoever minted them.
+          # A missing key fails this job LOUDLY (picked up by notify-failure).
+          if [ -z "$FIREBASE_SA_KEY" ]; then
+            echo "FIREBASE_SA_KEY secret is not set -- cannot deploy Firestore rules/indexes." >&2
+            echo "Add the drb-ci-firestore-deploy service account's JSON key as a Gitea Actions secret." >&2
             exit 1
           fi
+          export GOOGLE_APPLICATION_CREDENTIALS="$RUNNER_TEMP/firebase-sa.json"
+          trap 'rm -f "$GOOGLE_APPLICATION_CREDENTIALS"' EXIT
+          ( umask 077 && printf '%s' "$FIREBASE_SA_KEY" > "$GOOGLE_APPLICATION_CREDENTIALS" )
           npm install -g firebase-tools
           cd infra/firestore
           firebase deploy --only firestore:rules,firestore:indexes \
-            --project ${{ secrets.FIREBASE_PROJECT_ID }} \
-            --token "$FIREBASE_TOKEN" --non-interactive
+            --project ${{ secrets.FIREBASE_PROJECT_ID }} --non-interactive
 
   notify-failure:
     name: Report a failed deploy
@@ -371,7 +373,7 @@ jobs:
           # failed before any deploy was attempted" text even when the app
           # deployed fine and only the Firestore rules/indexes push failed.
           if deploy_result != "failure" and rules_result == "failure":
-              detail = "App deploy succeeded; Firestore rules/indexes deploy FAILED (server-26#51). Rules may be stale — check FIREBASE_TOKEN and the job log."
+              detail = "App deploy succeeded; Firestore rules/indexes deploy FAILED (server-26#51). Rules may be stale — check the FIREBASE_SA_KEY secret and the job log."
 
           # server-26#65: the old text here unconditionally claimed
           # "production is still running the previous build" -- true only

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/app/internal/intelligence.py

@@ -517,12 +517,33 @@ _NO_BACKSTOP_TG = re.compile(r"\b(mta|rail|railroad|train|transit|bridges? and t
                              r"rescue|ambulance|dpw|public works)\b", re.IGNORECASE)
 
 
+# A plate read aloud — two or more phonetic letters then 3-7 digits:
+# "Frank David Boy, 4514", "Lincoln, Charlie, Robert, 7-4-0-7". On a patrol
+# channel that is a unit running a car it has stopped. Held-out replay of
+# 09-21 (server-26#170): Ossining's Post 4 stops were read out only as plates
+# and never became incidents.
+_PHONETIC = (r"(?:adam|alpha|baker|boy|bravo|charlie|charles|david|delta|eddie|edward|echo|frank|"
+             r"george|golf|henry|hotel|ida|india|john|juliet|king|kilo|lincoln|lima|larry|mary|"
+             r"michael|mike|nora|nancy|november|ocean|oscar|peter|paul|papa|queen|robert|romeo|"
+             r"sam|sierra|tom|tango|union|uniform|victor|william|whiskey|x-ray|xray|young|yankee|zebra|zulu)")
+_PLATE_READ = re.compile(rf"\b{_PHONETIC}(?:[,\s]+{_PHONETIC}){{1,3}}[,\s]+\d(?:[\s-]?\d){{2,6}}\b",
+                         re.IGNORECASE)
+
+
 def _self_initiated_backstop(
     text: str, tags: list, incident_type: Optional[str], severity: str,
     talkgroup_name: Optional[str] = None,
 ) -> tuple[list, Optional[str], str]:
     if talkgroup_name and _NO_BACKSTOP_TG.search(talkgroup_name):
         return tags, incident_type, severity
+    # A plate read only stands for a stop when extraction found no other
+    # event in the call: the plate on an MVA, a tow or a parked-car complaint
+    # belongs to that event, not to a new stop.
+    if not tags and _PLATE_READ.search(text or ""):
+        tags = ["traffic-stop"]
+        incident_type = incident_type or "police"
+        if severity == "routine":
+            severity = "minor"
     for pattern, tag in _SELF_INITIATED:
         m = pattern.search(text or "")
         if not m or _NEGATED.search(text[: m.start()]):

drb-c2-core/tests/test_clearance_tracking.py

@@ -140,3 +140,24 @@ def test_short_stop_report_opens_a_scene():
             return await intelligence.extract_scenes("c1", "Adam 3 on a stop.", "Ch 1 (Patched with 155.310)")
     scenes = asyncio.run(run())
     assert len(scenes) == 1 and scenes[0]["tags"] == ["traffic-stop"] and scenes[0]["incident_type"] == "police"
+
+
+def test_plate_read_on_a_patrol_channel_is_a_stop():
+    from app.internal.intelligence import _self_initiated_backstop as b
+    ch = "Ossining - Police Dispatch"
+    for t in ("Post 4. 52-62, 3-3. Hemlock Circle. Frank David Boy, 4514. 10-8.",
+              "4, Ossining. 52-22, Ramapo, New York. Lincoln, Charlie, Robert, 7-4-0-7 on a Chevy.",
+              "New York, Mary, Charlie, Nora, 5-8-6-7."):
+        assert b(t, [], None, "routine", ch) == (["traffic-stop"], "police", "minor"), t
+    # a plate on a call that is already about something else stays with it
+    assert b("MVA, plate Mary George Sam 2740", ["mva"], "accident", "moderate", ch) == (["mva"], "accident", "moderate")
+    # 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

infra/firestore/firestore.rules

@@ -8,13 +8,11 @@
 // hand-set in the Firebase console: unversioned, unreviewed, unknown. See
 // SAAS_PLAN.md B1.
 //
-// DEPLOY IS A MANUAL, OUT-OF-BAND STEP — nothing in CI or this codebase
-// pushes these rules to Firebase:
-//   firebase deploy --only firestore:rules --project <project-id>
-// (from this directory, or point --config at infra/firestore/firebase.json
-// from the repo root). Do this before or immediately after the code that
-// starts stamping org_id ships — until these rules are live, the
-// console-configured rules are still what's actually enforced.
+// DEPLOYED BY CI on every push to main (.gitea/workflows/deploy.yml, job
+// deploy-firestore-rules, service-account auth via the FIREBASE_SA_KEY
+// secret — server-26#51). That job is separate from the app deploy, so a
+// green app deploy does NOT mean these rules are live: check that job too.
+// Editing rules in the Firebase console is overwritten by the next push.
 //
 // MODEL: c2-core (firebase-admin SDK, server-side) bypasses these rules
 // entirely and is the sole writer for every collection below — that was