correlator: address #116 review — call talkgroup id in the prompt, sort candidates

drb-correlation-review: ship, with two bounds the low-bar link rule needs.

1. _call_block emitted only the talkgroup NAME while _inc_summary emits
   numeric tg ids, so the "same talkgroup" precondition in _RULES was
   unevaluable and the low link bar applied unconditionally. _call_block now
   prints "Talkgroup: <name> (id <n>)".
2. ctx["recent"] is an unordered Firestore slice with no order_by; a busy 2h
   window (~40 active incidents) showed the model an arbitrary half of the
   candidates. _prompt_incidents() sorts by updated_at desc before the [:20]
   cap — also makes each row's idle: field monotonic.

+2 tests. Full c2-core suite green (sandboxed venv).

Review follow-ups (not blockers): _parse_response demotes an unresolvable
link to orphan (drops the call) rather than falling back to rules — now on
rising link volume; the 45% tiebreak escalation rate / smart-model cost is
untouched; _ROAD_RE swallows leading tokens so "10 Parker Street" still
won't road-overlap "Parker St".

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

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

@@ -108,16 +108,31 @@ _ROAD_RE = re.compile(
 )
 
 
+# Street-type synonyms collapsed to one token so "Mohegan Park Avenue" and
+# "Mohegan Park Ave" produce the same road id (server-26#115 — that one
+# difference was splitting a car-alarm incident into two).
+_ROAD_SUFFIX_CANON = {
+    "avenue": "ave", "street": "st", "road": "rd", "drive": "dr",
+    "boulevard": "blvd", "lane": "ln", "court": "ct", "place": "pl",
+    "highway": "hwy", "parkway": "pkwy",
+}
+
+
 def _extract_road_ids(text: str) -> set[str]:
     """
     Extract normalised road/route identifiers from a location string.
     e.g. "suspect east on Route 202" → {"route 202"}
-         "at Main Street and Oak Ave" → {"main street", "oak ave"}
+         "at Main Street and Oak Ave" → {"main st", "oak ave"}
     """
-    return {
+    ids: set[str] = set()
-        re.sub(r"[\s.\-]+", " ", m.group().lower()).strip()
+    for m in _ROAD_RE.finditer(text):
-        for m in _ROAD_RE.finditer(text)
+        key = re.sub(r"[\s.\-]+", " ", m.group().lower()).strip()
-    }
+        parts = key.split()
+        if parts and parts[-1] in _ROAD_SUFFIX_CANON:
+            parts[-1] = _ROAD_SUFFIX_CANON[parts[-1]]
+            key = " ".join(parts)
+        ids.add(key)
+    return ids
 
 
 def _location_mentions_road_overlap(new_location: str, inc_mentions: list[str]) -> bool:
@@ -670,6 +685,7 @@ async def correlate_call(
     reassignment: bool = False,
     embedding: Optional[list] = None,
     severity: Optional[str] = None,
+    transcript: Optional[str] = None,
 ) -> Optional[str]:
     """
     Link call_id to an existing incident or create a new one.
@@ -686,7 +702,7 @@ async def correlate_call(
         system_id=system_id, talkgroup_id=talkgroup_id, talkgroup_name=talkgroup_name,
         tags=tags, incident_type=incident_type, location=location,
         reassignment=reassignment, create_if_new=create_if_new,
-        embedding=embedding, severity=severity,
+        embedding=embedding, severity=severity, transcript=transcript,
     )
     decision = _run_decision(ctx)
     return await _apply_and_log(decision, ctx)
@@ -710,6 +726,7 @@ async def preview_correlation(
     reassignment: bool = False,
     embedding: Optional[list] = None,
     severity: Optional[str] = None,
+    transcript: Optional[str] = None,
 ) -> dict:
     """
     Run the rules engine and return the decision WITHOUT committing to Firestore.
@@ -730,7 +747,7 @@ async def preview_correlation(
         system_id=system_id, talkgroup_id=talkgroup_id, talkgroup_name=talkgroup_name,
         tags=tags, incident_type=incident_type, location=location,
         reassignment=reassignment, create_if_new=create_if_new,
-        embedding=embedding, severity=severity,
+        embedding=embedding, severity=severity, transcript=transcript,
     )
     decision = _run_decision(ctx)
     return {"decision": decision, "ctx": ctx}
@@ -765,6 +782,7 @@ async def _build_context(
     create_if_new: bool,
     embedding: Optional[list] = None,
     severity: Optional[str] = None,
+    transcript: Optional[str] = None,
 ) -> dict:
     now    = reference_time or datetime.now(timezone.utc)
     window = timedelta(hours=settings.correlation_window_hours)
@@ -804,6 +822,13 @@ async def _build_context(
     call_vehicles  = vehicles      if vehicles      is not None else (call_doc.get("vehicles")      or [])
     call_cleared   = cleared_units if cleared_units is not None else (call_doc.get("cleared_units") or [])
     call_severity  = severity or "routine"
+    # The transcript the LLM correlation tier reasons over. Prefer the SCENE's
+    # own words (server-26#102) — passed by upload.py's scene loop — and fall
+    # back to the call doc only when no scene text was supplied (the
+    # recorrelation sweep, and single-scene calls where the two are identical).
+    # Without this, every non-primary scene of a multi-scene call was judged by
+    # the LLM against a transcript containing the OTHER scenes.
+    scene_transcript = transcript or call_doc.get("transcript_corrected") or call_doc.get("transcript")
     # A string that is not a place is not a location anywhere downstream — not
     # in the fit tests, not in the thin-call test, not in the LLM prompt, and
     # not on the incident.  Its coordinates go with it: coords are geocoded
@@ -826,6 +851,7 @@ async def _build_context(
     return {
         "call_id": call_id, "org_id": org_id, "all_active": all_active, "recent": recent,
         "call_doc": call_doc, "call_embedding": call_embedding,
+        "scene_transcript": scene_transcript,
         "call_units": call_units, "call_vehicles": call_vehicles,
         "call_cleared": call_cleared, "call_severity": call_severity,
         "coords": coords, "is_thin_call": is_thin_call, "now": now,

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

@@ -172,7 +172,7 @@ async def extract_scenes(
 
     Each scene dict contains:
         tags, incident_type, location, location_coords, resolved,
-        severity, vehicles, units, transcript_corrected,
+        severity, vehicles, units, transcript, transcript_corrected,
         segment_indices, embedding
 
     Side-effect: updates calls/{call_id} in Firestore with merged tags,
@@ -337,6 +337,10 @@ async def extract_scenes(
         )
         embedding = await asyncio.to_thread(_sync_embed, scene_text)
 
+        scene_transcript = _scene_transcript_text(
+            transcript, segments, segment_indices, transcript_corrected
+        )
+
         processed.append({
             "tags":                 tags,
             "incident_type":        incident_type,
@@ -348,6 +352,7 @@ async def extract_scenes(
             "severity":             severity,
             "resolved":             resolved,
             "reassignment":         reassignment,
+            "transcript":           scene_transcript,
             "transcript_corrected": transcript_corrected,
             "segment_indices":      segment_indices,
             "embedding":            embedding,
@@ -571,11 +576,49 @@ def _municipality_from_tg(tg_name: Optional[str]) -> Optional[str]:
 def _build_transcript_block(transcript: str, segments: Optional[list[dict]]) -> str:
     """Format transcript as numbered transmissions if segments are available."""
     if segments and len(segments) > 1:
-        lines = [f"{i+1}. [{s['start']}s] {s['text']}" for i, s in enumerate(segments)]
+        # 0-based labels, matching the prompt's "0-based indices into the
+        # numbered transmissions" — the model echoes these back as
+        # `segment_indices`, which _build_scene_embed_text and the per-scene
+        # `transcript` (server-26#102) then slice with directly.
+        lines = [f"{i}. [{s['start']}s] {s['text']}" for i, s in enumerate(segments)]
         return f"Transmissions ({len(segments)}):\n" + "\n".join(lines)
     return f"Transcript:\n{transcript}"
 
 
+def _scene_transcript_text(
+    transcript: str,
+    segments: Optional[list[dict]],
+    segment_indices: Optional[list[int]],
+    transcript_corrected: Optional[str],
+) -> str:
+    """
+    This scene's own words, unprefixed — the segments it owns, joined.
+
+    server-26#102: the correlator's LLM tier reads this per scene instead of
+    the call doc's whole-call transcript, so on a multi-scene call scene N is
+    no longer judged against scenes 1..N-1's text.
+
+    Never returns "". Anything that would leave the slice empty — no
+    `segment_indices` (a single-segment call is never numbered by
+    `_build_transcript_block`), or indices that are out of range / not ints —
+    falls back to the whole-call transcript, which for a single-scene call is
+    the same text and for a mis-sliced multi-scene call is at least this
+    call's own words. `_sync_extract`'s prompt documents 0-based indices and
+    `_build_transcript_block` numbers to match, so no base normalisation here.
+    """
+    if transcript_corrected:
+        return transcript_corrected
+    if segments and segment_indices:
+        joined = " ".join(
+            segments[i]["text"]
+            for i in segment_indices
+            if isinstance(i, int) and 0 <= i < len(segments)
+        )
+        if joined:
+            return joined
+    return transcript
+
+
 def _build_scene_embed_text(
     transcript: str,
     segments: Optional[list[dict]],

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

@@ -45,7 +45,18 @@ def _fmt_idle(inc: dict, now: datetime) -> str:
 
 
 def _inc_summary(inc: dict, now: datetime) -> str:
+    # server-26#115: the model was given no title and no talkgroup, so it
+    # could not tell that "car alarms, Mohegan Park Ave" and "car alarms,
+    # Mohegan Park Avenue" on the same channel were one incident — it defaulted
+    # to "new". Title is the single strongest human-readable signal for "is
+    # this the same event"; talkgroup is what makes same-channel continuation
+    # obvious.
     parts = [f"id:{inc['incident_id']}", f"type:{inc.get('type') or '?'}"]
+    tgs = inc.get("talkgroup_ids") or []
+    if tgs:
+        parts.append(f"tg:[{', '.join(str(t) for t in tgs[:3])}]")
+    if inc.get("title"):
+        parts.append(f"title:{inc['title']!r}")
     if inc.get("location"):
         parts.append(f"loc:{inc['location']}")
     units = inc.get("units") or []
@@ -61,7 +72,13 @@ def _inc_summary(inc: dict, now: datetime) -> str:
 def _call_block(ctx: dict) -> str:
     lines = []
     call_doc = ctx["call_doc"]
-    transcript = call_doc.get("transcript_corrected") or call_doc.get("transcript")
+    # The SCENE's own transcript, resolved in _build_context (server-26#102).
+    # Falls back to the call doc for a ctx built without a scene (tests, sweep).
+    transcript = (
+        ctx.get("scene_transcript")
+        or call_doc.get("transcript_corrected")
+        or call_doc.get("transcript")
+    )
     if transcript:
         lines.append(f"Transcript: {transcript[:700]}")
     if ctx["tags"]:
@@ -74,19 +91,50 @@ def _call_block(ctx: dict) -> str:
         lines.append(f"Units: {ctx['call_units']}")
     if ctx["call_vehicles"]:
         lines.append(f"Vehicles: {ctx['call_vehicles']}")
-    if ctx["talkgroup_name"]:
+    if ctx["talkgroup_name"] or ctx.get("talkgroup_id") is not None:
-        lines.append(f"Talkgroup: {ctx['talkgroup_name']}")
+        # Both the name and the id — _inc_summary emits numeric tg ids, so the
+        # id is what makes the "same talkgroup" rule in _RULES evaluable
+        # (server-26#115 review).
+        tgid = ctx.get("talkgroup_id")
+        name = ctx["talkgroup_name"] or "?"
+        lines.append(f"Talkgroup: {name}" + (f" (id {tgid})" if tgid is not None else ""))
     return "\n".join(lines) if lines else "(no details)"
 
 
+def _prompt_incidents(recent: list[dict]) -> list[dict]:
+    """The ≤20 candidates shown to the model, most-recently-active first.
+
+    `ctx["recent"]` is an unordered slice of a Firestore result with no
+    order_by, so a busy 2h window (~40 active incidents) meant the model saw
+    an arbitrary half of the candidates (server-26#115 review). Sorting by
+    updated_at desc also makes each row's `idle:` field monotonic.
+    """
+    def _key(inc: dict):
+        return str(inc.get("updated_at") or inc.get("started_at") or "")
+    return sorted(recent, key=_key, reverse=True)[:20]
+
+
 _SCHEMA = '{"action": "link" | "new" | "orphan", "incident_id": "<id_string or null>", "reasoning": "<one sentence>"}'
 
 _RULES = """
-Rules:
+Rules (this system OVER-SPLITS — a real incident routinely gets shattered into
-- "link" only with clear positive evidence: same units, same geocoded location, or semantically identical scene on the same talkgroup within the last few minutes.
+5-10 duplicates. A wrong link is cheap; a duplicate incident is the failure
-- A call on a DIFFERENT talkgroup than an incident requires unit overlap or geocoded location match — topic similarity alone is not enough.
+mode. Bias accordingly.):
-- "new" only if the call has a clear incident_type AND describes a distinct, identifiable scene.
+- Prefer "link" when the call plausibly continues a recent incident ON THE SAME
-- "orphan" when in doubt — conservative is always correct.
+  TALKGROUP: same or overlapping units, the same or an adjacent location (treat
+  "Ave"/"Avenue", "St"/"Street", "Rd"/"Road" as identical; a house number plus
+  the same street is the same place), the same subject/vehicle/case number, or a
+  follow-up beat ("units clearing", "negative contact", "tow en route", "event
+  number 214-201", a status update) to an incident that is only a few minutes
+  idle. The bar for "link" on the same talkgroup is LOW.
+- Reserve "new" for a call that clearly describes a DIFFERENT event from every
+  recent incident — a different place, different units, and a different subject,
+  not merely a different transmission about the same job.
+- "orphan" a call that is not an incident at all: radio checks, roll call,
+  a unit marking on/off duty or 10-8/10-98, mileage/log entries, a bare
+  acknowledgement. Do not open a "new" incident for these.
+- A call on a DIFFERENT talkgroup than an incident still requires unit overlap
+  or a geocoded/location match — topic similarity alone is not enough there.
 - Do NOT link just because both calls involve police or both mention a road.
 """
 
@@ -95,7 +143,7 @@ def _build_decide_prompt(ctx: dict) -> str:
     now    = ctx["now"]
     recent = ctx["recent"]
     inc_block = (
-        "\n".join(_inc_summary(inc, now) for inc in recent[:20])
+        "\n".join(_inc_summary(inc, now) for inc in _prompt_incidents(recent))
         if recent else "(none)"
     )
     return (
@@ -113,7 +161,7 @@ def _build_tiebreak_prompt(rules_decision: dict, llm_decision: dict, ctx: dict)
     now    = ctx["now"]
     recent = ctx["recent"]
     inc_block = (
-        "\n".join(_inc_summary(inc, now) for inc in recent[:20])
+        "\n".join(_inc_summary(inc, now) for inc in _prompt_incidents(recent))
         if recent else "(none)"
     )
 

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

@@ -108,6 +108,7 @@ async def _recorrelate_orphan(call: dict) -> bool:
         cleared_units  = call.get("cleared_units") or [],
         embedding      = call.get("embedding"),
         severity       = call.get("severity"),
+        transcript     = call.get("transcript_corrected") or call.get("transcript"),
         reference_time = started_at,   # anchor window to when the call happened
         create_if_new  = False,        # never create — link-only
     )

drb-c2-core/app/routers/upload.py

@@ -116,6 +116,7 @@ async def _correlate_with_consensus(
     reassignment: bool = False,
     embedding: Optional[list] = None,
     severity: Optional[str] = None,
+    transcript: Optional[str] = None,
 ) -> Optional[str]:
     """
     Consensus correlator: runs the rules engine and the cheap LLM in sequence.
@@ -133,7 +134,7 @@ async def _correlate_with_consensus(
         tags=tags, incident_type=incident_type, location=location,
         location_coords=location_coords, units=units, vehicles=vehicles,
         cleared_units=cleared_units, reassignment=reassignment,
-        embedding=embedding, severity=severity,
+        embedding=embedding, severity=severity, transcript=transcript,
     )
     ctx             = preview["ctx"]
     rules_decision  = preview["decision"]
@@ -226,6 +227,7 @@ async def _run_extraction_pipeline(
                 reassignment=is_reassignment,
                 embedding=scene.get("embedding"),
                 severity=scene.get("severity"),
+                transcript=scene.get("transcript"),
             )
             if incident_id and incident_id not in incident_ids:
                 incident_ids.append(incident_id)
@@ -343,6 +345,7 @@ async def _run_intelligence_pipeline(
                 reassignment=is_reassignment,
                 embedding=scene.get("embedding"),
                 severity=scene.get("severity"),
+                transcript=scene.get("transcript"),
             )
             if incident_id and incident_id not in incident_ids:
                 incident_ids.append(incident_id)

drb-c2-core/tests/test_correlator_115.py

@@ -0,0 +1,67 @@
+"""
+server-26#115 — the tiebreaker manufactured incidents because it was blind to
+what would tell it two incidents are one.
+
+Two low-risk supports for the reframed prompt:
+  1. `_extract_road_ids` collapses street-type synonyms, so "Mohegan Park Ave"
+     and "Mohegan Park Avenue" share a road id (they were splitting one
+     car-alarm incident into two).
+  2. `_inc_summary` now carries the incident title and talkgroup, the two
+     signals the model needs to recognise a same-channel continuation.
+"""
+from datetime import datetime, timezone
+
+from app.internal.incident_correlator import (
+    _extract_road_ids, _location_mentions_road_overlap,
+)
+from app.internal.llm_correlator import _inc_summary, _prompt_incidents
+
+NOW = datetime(2026, 9, 7, 8, 0, 0, tzinfo=timezone.utc)
+
+
+def test_avenue_and_ave_are_the_same_road_id():
+    assert _extract_road_ids("Mohegan Park Avenue") == _extract_road_ids("Mohegan Park Ave")
+    assert _extract_road_ids("191 Broadway Street") == _extract_road_ids("191 Broadway St")
+    assert _extract_road_ids("North State Road") == _extract_road_ids("North State Rd")
+
+
+def test_road_overlap_matches_across_the_synonym():
+    assert _location_mentions_road_overlap("multiple car alarms Mohegan Park Avenue",
+                                           ["patrol to Mohegan Park Ave"]) is True
+    # still discriminates genuinely different streets
+    assert _location_mentions_road_overlap("Oak Avenue", ["Elm Avenue"]) is False
+
+
+def test_inc_summary_carries_title_and_talkgroup():
+    s = _inc_summary({
+        "incident_id": "abc123",
+        "type": "police",
+        "talkgroup_ids": [9560],
+        "title": "Nuisance Alarm at Mohegan Park Ave",
+        "location": "Mohegan Park Ave",
+        "units": ["Headquarters"],
+        "tags": ["car-alarm"],
+        "updated_at": NOW.isoformat(),
+    }, NOW)
+    assert "title:'Nuisance Alarm at Mohegan Park Ave'" in s
+    assert "tg:[9560]" in s
+    assert "id:abc123" in s
+
+
+def test_inc_summary_omits_missing_optional_fields():
+    s = _inc_summary({"incident_id": "x", "updated_at": NOW.isoformat()}, NOW)
+    assert "title:" not in s and "tg:" not in s and "loc:" not in s
+    assert s.startswith("id:x")
+
+
+def test_prompt_incidents_is_most_recently_active_first_and_capped():
+    recent = [
+        {"incident_id": f"i{n}", "updated_at": f"2026-09-07T0{n}:00:00+00:00"}
+        for n in range(1, 8)
+    ]
+    ordered = _prompt_incidents(recent)
+    assert [i["incident_id"] for i in ordered] == ["i7", "i6", "i5", "i4", "i3", "i2", "i1"]
+    assert len(_prompt_incidents(recent * 5)) == 20
+    # falls back to started_at when updated_at is absent, and never raises
+    assert _prompt_incidents([{"incident_id": "a", "started_at": NOW.isoformat()},
+                              {"incident_id": "b"}])[0]["incident_id"] == "a"

drb-c2-core/tests/test_incident_identity.py

@@ -304,6 +304,39 @@ async def test_a_scene_is_judged_on_its_own_embedding_and_severity():
     assert ctx["call_severity"] == "major"
 
 
+@pytest.mark.asyncio
+async def test_the_llm_tier_reads_the_scene_transcript_not_the_whole_call():
+    """
+    server-26#102. intelligence.py writes only the primary scene's corrected
+    text to calls/{id}. _call_block (the LLM correlation prompt) must reason
+    over the SCENE being correlated, not a whole-call transcript that also
+    contains the other scenes. _build_context threads the scene's text in;
+    with no scene text it falls back to the call doc (sweep / single-scene).
+    """
+    with patch("app.internal.incident_correlator.fstore") as mock_fstore:
+        mock_fstore.doc_get = AsyncMock(return_value={
+            "transcript": "scene one about a fire. scene two about a traffic stop.",
+        })
+        mock_fstore.collection_list = AsyncMock(return_value=[])
+        scene = await _build_context(
+            call_id="call-1", units=None, vehicles=None, cleared_units=None,
+            location_coords=None, reference_time=NOW,
+            system_id="sys-1", talkgroup_id=383, talkgroup_name=DISPATCH_TG,
+            tags=[], incident_type="police", location=None,
+            reassignment=False, create_if_new=True,
+            transcript="scene two about a traffic stop.",
+        )
+        fallback = await _build_context(
+            call_id="call-1", units=None, vehicles=None, cleared_units=None,
+            location_coords=None, reference_time=NOW,
+            system_id="sys-1", talkgroup_id=383, talkgroup_name=DISPATCH_TG,
+            tags=[], incident_type="police", location=None,
+            reassignment=False, create_if_new=True,
+        )
+    assert scene["scene_transcript"] == "scene two about a traffic stop."
+    assert fallback["scene_transcript"] == "scene one about a fire. scene two about a traffic stop."
+
+
 @pytest.mark.asyncio
 async def test_a_bare_number_never_becomes_an_incident_location_or_title():
     inc = await _create(tags=["flames"], location="49", coords=None,

drb-c2-core/tests/test_scene_transcript.py

@@ -0,0 +1,40 @@
+"""
+server-26#102 — a scene is correlated on its OWN transcript, not the whole call.
+
+_scene_transcript_text slices the segments a scene owns. It must never return
+"" (an empty slice would let incident_correlator._build_context fall back to
+the call doc's whole-call transcript, re-opening the leak in exactly the case
+— bad indices — where it matters).
+"""
+from app.internal.intelligence import _scene_transcript_text
+
+SEGS = [
+    {"text": "structure fire, 12 Main"},
+    {"text": "engine 4 responding"},
+    {"text": "traffic stop, plate ABC"},
+    {"text": "one occupant"},
+]
+WHOLE = "structure fire, 12 Main engine 4 responding traffic stop, plate ABC one occupant"
+
+
+def test_scene_owns_a_subset_of_segments():
+    assert _scene_transcript_text(WHOLE, SEGS, [0, 1], None) == "structure fire, 12 Main engine 4 responding"
+    assert _scene_transcript_text(WHOLE, SEGS, [2, 3], None) == "traffic stop, plate ABC one occupant"
+
+
+def test_corrected_text_wins_when_present():
+    assert _scene_transcript_text(WHOLE, SEGS, [0], "cleaned up text") == "cleaned up text"
+
+
+def test_no_segment_indices_falls_back_to_whole_call():
+    # single-segment calls are never numbered by _build_transcript_block → null indices
+    assert _scene_transcript_text(WHOLE, SEGS, None, None) == WHOLE
+    assert _scene_transcript_text(WHOLE, None, [0, 1], None) == WHOLE
+
+
+def test_out_of_range_or_nonint_indices_fall_back_never_empty():
+    assert _scene_transcript_text(WHOLE, SEGS, [9, 10], None) == WHOLE          # all out of range
+    assert _scene_transcript_text(WHOLE, SEGS, ["1", "2"], None) == WHOLE       # 1-based strings, rejected
+    assert _scene_transcript_text(WHOLE, SEGS, [-1], None) == WHOLE            # negative
+    # partial validity: keep what's in range
+    assert _scene_transcript_text(WHOLE, SEGS, [3, 99], None) == "one occupant"

drb-frontend/app/alerts/page.tsx

@@ -186,7 +186,7 @@ function RulesTab({ isAdmin }: { isAdmin: boolean }) {
 
 export default function AlertsPage() {
   const { isAdmin } = useAuth();
-  const { alerts, loading } = useAlerts();
+  const { alerts, loading, error } = useAlerts();
   const [tab, setTab] = useState<"events" | "rules">("events");
 
   async function handleAcknowledge(id: string) {
@@ -226,6 +226,12 @@ export default function AlertsPage() {
       {tab === "events" && (
         loading ? (
           <p className="text-gray-500 text-sm font-mono">Loading…</p>
+        ) : error ? (
+          <p className="text-red-400 text-sm font-mono">
+            {/requires an index|PERMISSION_DENIED|insufficient permissions/i.test(error)
+              ? "Couldn't load alerts — a database index or security rule isn't deployed on the server yet (server-26 #13 / #51)."
+              : `Couldn't load alerts: ${error}`}
+          </p>
         ) : alerts.length === 0 ? (
           <p className="text-gray-600 text-sm font-mono">No alerts triggered yet.</p>
         ) : (

drb-frontend/app/globals.css

@@ -163,6 +163,20 @@ html:not(.dark) .border-indigo-800 { border-color: #a5b4fc !important; }
   animation: pulse-ring 1.8s ease-out infinite;
 }
 
+/* ── Leaflet stacking fix ─────────────────────────────────────────────────────
+ * Leaflet's internal panes (z-index 200–700) and its zoom / layers controls
+ * (z-index 1000) otherwise paint above the sticky app Nav (z-40) and any modal
+ * overlay — on Live this put the account dropdown *behind* the map. Pinning the
+ * map container to its own low stacking context keeps Leaflet's internal layer
+ * order intact while dropping the whole map (tiles + controls) below the app
+ * chrome. The map's own overlay UI (legend, incident rail, clock, fit-all) sits
+ * outside .leaflet-container, so it is unaffected and still renders on top.
+ */
+.leaflet-container {
+  position: relative;
+  z-index: 0;
+}
+
 /* ── Form inputs ─────────────────────────────────────────────────────────── */
 html:not(.dark) input:not([type="submit"]):not([type="button"]):not([type="reset"]),
 html:not(.dark) select,

drb-frontend/app/incidents/[id]/page.tsx

@@ -100,6 +100,7 @@ export default function IncidentDetailPage() {
   const displayTags = incident.tags.filter((t) => t !== "auto-generated");
   const unitsActive = incident.units_active ?? incident.units ?? [];
   const unitsCleared = incident.units_cleared ?? [];
+  const vehicles = incident.vehicles ?? [];
   const active = incident.status === "active";
 
   const visible = newestFirst.slice(0, earlierShown);
@@ -213,11 +214,11 @@ export default function IncidentDetailPage() {
             </div>
           </div>
 
-          {incident.vehicles?.length > 0 && (
+          {vehicles.length > 0 && (
             <div>
               <p className="text-xs text-ink-muted uppercase tracking-wide mb-2">Vehicles</p>
               <div className="flex flex-wrap gap-1">
-                {incident.vehicles.map((v) => (
+                {vehicles.map((v) => (
                   <span key={v} className="text-xs bg-raised text-ink-2 px-2 py-0.5 rounded font-mono">{v}</span>
                 ))}
               </div>

drb-frontend/app/incidents/page.tsx

@@ -28,6 +28,17 @@ const FILTER_THRESHOLD: Record<SeverityFilter, number> = { all: -1, minor: 1, mo
 
 type SortMode = "recent" | "severity";
 
+// The Firestore client surfaces a missing composite index or an undeployed
+// ruleset as a raw multi-line string with a console URL in it — not something
+// to put in front of an operator. Collapse the known infra failures to a plain
+// line; pass anything else straight through so a real bug still shows.
+function friendlyIncidentsError(raw: string): string {
+  if (/requires an index|PERMISSION_DENIED|Missing or insufficient permissions|failed-precondition/i.test(raw)) {
+    return "Couldn't load incidents — the incidents database index isn't deployed on the server yet. This is a one-time backend deploy step (server-26 #13 / #51), not a problem with your data.";
+  }
+  return `Couldn't load incidents: ${raw}`;
+}
+
 function fmtTime(iso: string) {
   try { return new Date(iso).toLocaleTimeString([], { hour: "2-digit", minute: "2-digit" }); } catch { return iso; }
 }
@@ -286,7 +297,7 @@ export default function IncidentsPage() {
               recorded yet" over the top of it told the operator the radio was
               quiet when the page had simply failed to load — server-26#13. */}
           {filtered.length === 0 && error && (
-            <ErrorBanner message={`Couldn't load incidents: ${error}`} />
+            <ErrorBanner message={friendlyIncidentsError(error)} />
           )}
 
           {filtered.length === 0 && !error && (

drb-frontend/app/nodes/[id]/page.tsx

@@ -60,7 +60,7 @@ function DiscordJoinModal({
     <div className="fixed inset-0 bg-black/60 flex items-center justify-center z-50 p-4">
       <form
         onSubmit={handleSubmit}
-        className="bg-gray-900 border border-gray-700 rounded-xl p-6 space-y-4 font-mono w-full max-w-sm"
+        className="bg-gray-900 border border-gray-700 rounded-xl p-6 space-y-4 font-mono w-full max-w-sm max-h-[90vh] overflow-y-auto"
       >
         <h3 className="text-white font-semibold">Join Discord Voice</h3>
         <div>

drb-frontend/app/nodes/page.tsx

@@ -42,7 +42,7 @@ export default function NodesPage() {
           <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
             {pending.map((n) => (
               <div key={n.node_id} onClick={() => setConfigNode(n)} className="cursor-pointer">
-                <NodeCard node={n} system={systemMap[n.assigned_system_id ?? ""]} />
+                <NodeCard node={n} system={systemMap[n.assigned_system_id ?? ""]} linkToDetail={false} />
               </div>
             ))}
           </div>

drb-frontend/app/onboarding/page.tsx

@@ -43,7 +43,7 @@ export default function OnboardingPage() {
       // Firebase custom claims only show up in a *freshly fetched* ID token —
       // getIdTokenResult(true) inside refreshClaims forces that fetch, then
       // AuthProvider's own state (orgId) updates and the effect above
-      // redirects to /dashboard.
+      // redirects to "/" (Live).
       await refreshClaims();
     } catch (err) {
       setError(err instanceof Error ? err.message : "Could not set up your organization. Try again.");

drb-frontend/app/trips/page.tsx

@@ -22,7 +22,9 @@ function TripCard({ trip, isAdmin, onDelete }: {
 }) {
   const router = useRouter();
   const today = new Date().toISOString().slice(0, 10);
-  const upcoming = trip.start_date >= today;
+  // Bucket and badge must agree: the list groups on end_date (page.tsx ~L176),
+  // so a trip isn't "Past" until it's over, not when it starts.
+  const upcoming = trip.end_date >= today;
   const attendeeCount = Object.keys(trip.attendees ?? {}).length;
 
   return (
@@ -97,10 +99,10 @@ function CreateModal({ onClose, onCreate }: {
   }
 
   return (
-    <div className="fixed inset-0 bg-black/60 flex items-center justify-center z-50">
+    <div className="fixed inset-0 bg-black/60 flex items-center justify-center z-50 p-4">
       <form
         onSubmit={handleSubmit}
-        className="bg-gray-900 border border-gray-700 rounded-xl p-6 w-full max-w-md space-y-4"
+        className="bg-gray-900 border border-gray-700 rounded-xl p-6 w-full max-w-md space-y-4 max-h-[90vh] overflow-y-auto"
       >
         <h2 className="text-white font-bold">New Trip</h2>
 

drb-frontend/components/CallSpineEntry.tsx

@@ -23,7 +23,7 @@ function fmtClock(s: number): string {
   return `${m}:${r.toString().padStart(2, "0")}`;
 }
 
-function InlinePlayer({ callId, hasAudio }: { callId: string; hasAudio: boolean }) {
+function InlinePlayer({ callId }: { callId: string }) {
   const [url, setUrl] = useState<string | null>(null);
   const [error, setError] = useState(false);
   const [loading, setLoading] = useState(false);
@@ -32,8 +32,6 @@ function InlinePlayer({ callId, hasAudio }: { callId: string; hasAudio: boolean
   const [duration, setDuration] = useState(0);
   const audioRef = useRef<HTMLAudioElement | null>(null);
 
-  if (!hasAudio) return null;
-
   async function ensureUrl() {
     if (url || loading) return;
     setLoading(true);
@@ -169,7 +167,7 @@ export function CallSpineEntry({
 
         {hasAudio && (
           <div className="mt-1.5">
-            <InlinePlayer callId={call.call_id} hasAudio={hasAudio} />
+            <InlinePlayer callId={call.call_id} />
           </div>
         )}
 

drb-frontend/components/MapView.tsx

@@ -24,6 +24,17 @@ L.Icon.Default.mergeOptions({
   shadowUrl: "https://unpkg.com/leaflet@1.9.4/dist/images/marker-shadow.png",
 });
 
+// ── Basemap tiles ─────────────────────────────────────────────────────────────
+// Default is CARTO's keyless dark raster basemap — no token, fits the dark UI.
+// Overridable via NEXT_PUBLIC_MAP_TILE_URL so a keyed style (a CARTO account
+// style, MapTiler, Mapbox, …) can be dropped in for prod without a code change.
+// Whatever is supplied must use Leaflet's {s}/{z}/{x}/{y}{r} placeholder scheme.
+const MAP_TILE_URL =
+  process.env.NEXT_PUBLIC_MAP_TILE_URL ||
+  "https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}{r}.png";
+const MAP_TILE_ATTRIBUTION =
+  '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors &copy; <a href="https://carto.com/">CARTO</a>';
+
 // ── Colour ────────────────────────────────────────────────────────────────────
 // Severity is the only hue on this map — see UI_REDESIGN.md §2.3. Incident
 // type is carried by the glyph knocked out of the pin, never by colour, and
@@ -540,14 +551,14 @@ export default function MapView({ nodes, activeCalls, incidents = [], calls = []
           {/* Base layers */}
           <LayersControl.BaseLayer checked name="Dark">
             <TileLayer
-              url="https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}{r}.png"
+              url={MAP_TILE_URL}
-              attribution='&copy; <a href="https://carto.com/">CARTO</a>'
+              attribution={MAP_TILE_ATTRIBUTION}
             />
           </LayersControl.BaseLayer>
           <LayersControl.BaseLayer name="Light">
             <TileLayer
               url="https://{s}.basemaps.cartocdn.com/light_all/{z}/{x}/{y}{r}.png"
-              attribution='&copy; <a href="https://carto.com/">CARTO</a>'
+              attribution={MAP_TILE_ATTRIBUTION}
             />
           </LayersControl.BaseLayer>
           <LayersControl.BaseLayer name="Streets">

drb-frontend/components/NodeCard.tsx

@@ -5,15 +5,20 @@ import type { NodeRecord, SystemRecord } from "@/lib/types";
 interface Props {
   node: NodeRecord;
   system?: SystemRecord;
+  /**
+   * When false, the card renders without its `/nodes/[id]` Link wrapper so a
+   * parent click handler can take the interaction (pending nodes open the
+   * config modal instead of navigating). Defaults to true.
+   */
+  linkToDetail?: boolean;
 }
 
-export function NodeCard({ node, system }: Props) {
+export function NodeCard({ node, system, linkToDetail = true }: Props) {
   const lastSeen = node.last_seen
     ? new Date(node.last_seen).toLocaleTimeString()
     : "never";
 
-  return (
+  const body = (
-    <Link href={`/nodes/${node.node_id}`}>
       <div className="bg-gray-900 border border-gray-800 rounded-lg p-4 hover:border-gray-600 transition-colors cursor-pointer">
         <div className="flex items-start justify-between mb-3">
           <div>
@@ -58,6 +63,7 @@ export function NodeCard({ node, system }: Props) {
           </div>
         )}
       </div>
-    </Link>
   );
+
+  return linkToDetail ? <Link href={`/nodes/${node.node_id}`}>{body}</Link> : body;
 }

drb-frontend/components/NodeConfigModal.tsx

@@ -50,8 +50,8 @@ export function NodeConfigModal({ node, systems, onClose }: Props) {
   const selectedPreset = PRESETS.find((p) => p.value === preset);
 
   return (
-    <div className="fixed inset-0 bg-black/70 flex items-center justify-center z-50">
+    <div className="fixed inset-0 bg-black/70 flex items-center justify-center z-50 p-4">
-      <div className="bg-gray-900 border border-gray-700 rounded-xl p-6 w-full max-w-md font-mono">
+      <div className="bg-gray-900 border border-gray-700 rounded-xl p-6 w-full max-w-md font-mono max-h-[90vh] overflow-y-auto">
         <h2 className="text-white font-semibold mb-1">Configure Node</h2>
         <p className="text-gray-400 text-sm mb-5">
           <span className="text-indigo-400">{node.node_id}</span> connected for the first time.

drb-frontend/lib/types.ts

@@ -143,8 +143,9 @@ export interface IncidentRecord {
   call_ids: string[];
   system_ids: string[];
   talkgroup_ids: string[];
-  units: string[];
+  /** Omitted on incident docs written before these fields existed. */
-  vehicles: string[];
+  units?: string[];
+  vehicles?: string[];
   /** Units currently believed on scene — maintained by incident_correlator.py `_attach`. */
   units_active?: string[];
   /** Units that reported clearing/back in service on this incident. */