map: mount without waiting on the 500-call window; legend collapsible, hidden under open layers list

The Live map was held behind useCalls(500), measured at ~9.2s to first map
paint on prod; it now mounts as soon as the saved view is known (nodes are
awaited only when there is no view). The legend painted over the expanded
Leaflet layers list (z-1001 vs the map's z-0 stacking context): it is now a
<details> that hides while the list is open and starts folded on short
viewports.

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

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

@@ -128,6 +128,8 @@ class MQTTHandler:
                 "sdr_devices": payload.get("sdr_devices"),
                 "op25_sdr_serial": payload.get("op25_sdr_serial"),
                 "sdr_count": payload.get("sdr_count"),  # None until reported, never a guessed 1
+                "disk_free_bytes": payload.get("disk_free_bytes"),
+                "disk_total_bytes": payload.get("disk_total_bytes"),
                 "enforce_override_timeout": payload.get("enforce_override_timeout", True),
                 "is_overridden": False,
                 "override_system_id": None,
@@ -161,8 +163,11 @@ class MQTTHandler:
             # radio_channels (node-26#24): a conventional node's channels and
             # whether each is encrypted — the one decode failure the owner has
             # to hear about from C2, since nothing on the node can fix it.
+            # disk_* (node-26#41): free/total bytes of the host disk the node
+            # records to — a full disk silently stopped node-002 for 17 days.
             for key in ("secondary_sdr_mode", "secondary_sdr_priority", "secondary_sdr_running",
-                        "sdr_pins", "sdr_devices", "op25_sdr_serial", "radio_channels"):
+                        "sdr_pins", "sdr_devices", "op25_sdr_serial", "radio_channels",
+                        "disk_free_bytes", "disk_total_bytes"):
                 if key in payload:
                     updates[key] = payload[key]
             if "sdr_count" in payload:

drb-c2-core/tests/test_mqtt_handler.py

@@ -118,6 +118,22 @@ async def test_checkin_updates_existing_configured_node(handler):
     assert "last_seen" in updates
 
 
+@pytest.mark.asyncio
+async def test_checkin_stores_disk_free_and_total(handler):
+    # node-26#41: a full disk stopped node-002 recording while it showed Online.
+    existing = {"node_id": "node-01", "status": "online", "configured": True}
+    with patch("app.internal.mqtt_handler.fstore") as mock_fstore:
+        mock_fstore.doc_get = AsyncMock(return_value=existing)
+        mock_fstore.doc_update = AsyncMock()
+        await handler._handle_checkin("node-01", {"disk_free_bytes": 5, "disk_total_bytes": 100})
+        updates = mock_fstore.doc_update.call_args[0][2]
+        assert updates["disk_free_bytes"] == 5 and updates["disk_total_bytes"] == 100
+
+        # An older node that doesn't report disk must not wipe the fields.
+        await handler._handle_checkin("node-01", {"name": "x"})
+        assert "disk_free_bytes" not in mock_fstore.doc_update.call_args[0][2]
+
+
 @pytest.mark.asyncio
 async def test_checkin_does_not_promote_unconfigured_to_online(handler):
     existing = {

drb-frontend/app/globals.css

@@ -4,6 +4,8 @@
 
 @import 'leaflet/dist/leaflet.css';
 
+/* Palette: "Iris" (2026-11) — graphite neutrals + one indigo-violet accent.
+ * Tailwind's gray/indigo scales are remapped to match in tailwind.config.ts. */
 /* ── Design tokens ────────────────────────────────────────────────────────────
  * Single source of truth for surface, ink and encoding colour. `:root` is the
  * LIGHT theme; `.dark` on <html> (set by ThemeProvider, darkMode: ["class"])
@@ -16,43 +18,43 @@
  * Do not add a hue here for a category; add a glyph.
  */
 :root {
-  --page:        #F4F6F9;
+  --page:        #F7F7F8;
   --surface:     #FFFFFF;
-  --raised:      #F7F9FB;
+  --raised:      #F2F2F5;
-  --line:        rgba(11,17,27,.11);
+  --line:        rgba(24,24,27,.10);
-  --line-strong: rgba(11,17,27,.22);
+  --line-strong: rgba(24,24,27,.20);
-  --ink:         #101620;
+  --ink:         #18181B;
-  --ink-2:       #46536A;
+  --ink-2:       #52525B;
-  --ink-muted:   #6B788C;
+  --ink-muted:   #6B6B76;
 
-  --accent:       #2A78D6;
+  --accent:       #5E6AD2;
-  --sev-moderate: #B07800;
+  --sev-moderate: #B54708;
-  --sev-major:    #C0281F;
+  --sev-major:    #D92D20;
 
-  --map-bg:    #E8ECF1;
+  --map-bg:    #ECECF0;
-  --map-block: #DFE4EB;
+  --map-block: #E1E1E8;
   --map-road:  #FFFFFF;
-  --map-water: #D3E2EE;
+  --map-water: #DADDF2;
 }
 
 .dark {
-  --page:        #0B0E13;
+  --page:        #08090A;
-  --surface:     #141922;
+  --surface:     #111214;
-  --raised:      #1B2230;
+  --raised:      #1A1B1F;
-  --line:        rgba(255,255,255,.09);
+  --line:        rgba(255,255,255,.08);
-  --line-strong: rgba(255,255,255,.17);
+  --line-strong: rgba(255,255,255,.16);
-  --ink:         #E8EBF0;
+  --ink:         #EDEDEF;
-  --ink-2:       #A5B0C2;
+  --ink-2:       #A9A9B3;
-  --ink-muted:   #8C98AE; /* was #77839A: 4.2:1 on raised, failed AA at the 10-12px it's used at (#136) */
+  --ink-muted:   #8B8B96; /* 5.3:1 on raised — holds AA at 10-12px (#136) */
 
-  --accent:       #3987E5;
+  --accent:       #8B93F0;
-  --sev-moderate: #C98500;
+  --sev-moderate: #FDB022;
-  --sev-major:    #F05252; /* was #D03B3B: 3.7:1 as text on surface (#136) */
+  --sev-major:    #F97066; /* 6.6:1 as text on surface (#136) */
 
-  --map-bg:    #0E131B;
+  --map-bg:    #0D0E11;
-  --map-block: #161C26;
+  --map-block: #16171B;
-  --map-road:  #232C3A;
+  --map-road:  #26272D;
-  --map-water: #12202E;
+  --map-water: #141729;
 }
 
 /* ── Base ─────────────────────────────────────────────────────────────────── */
@@ -69,7 +71,7 @@ html, body {
 
 /* Dark mode: raw gray-600/700 text sits ~2.4:1 on the near-black page — below
  * readable. Lift both to gray-500 (~4:1). */
-.dark .text-gray-600, .dark .text-gray-700 { color: #6b7280; }
+.dark .text-gray-600, .dark .text-gray-700 { color: #7A7A85; }
 
 /* ── Light mode overrides ─────────────────────────────────────────────────── */
 /*
@@ -80,34 +82,34 @@ html, body {
 
 /* Structural backgrounds */
 html:not(.dark),
-html:not(.dark) body                { background-color: #f1f5f9; color: #0f172a; }
+html:not(.dark) body                { background-color: #f2f2f5; color: #18181b; }
-html:not(.dark) .bg-gray-950        { background-color: #f1f5f9 !important; }
+html:not(.dark) .bg-gray-950        { background-color: #f2f2f5 !important; }
-html:not(.dark) .bg-gray-950\/95    { background-color: rgba(241,245,249,0.95) !important; }
+html:not(.dark) .bg-gray-950\/95    { background-color: rgba(242,242,245,0.95) !important; }
 html:not(.dark) .bg-gray-900        { background-color: #ffffff !important; }
 html:not(.dark) .bg-gray-900\/60    { background-color: rgba(255,255,255,0.85) !important; }
 html:not(.dark) .bg-gray-900\/50    { background-color: rgba(255,255,255,0.75) !important; }
 html:not(.dark) .bg-gray-900\/30    { background-color: rgba(255,255,255,0.50) !important; }
-html:not(.dark) .bg-gray-800        { background-color: #f1f5f9 !important; }
+html:not(.dark) .bg-gray-800        { background-color: #f2f2f5 !important; }
-html:not(.dark) .bg-gray-800\/60    { background-color: rgba(226,232,240,0.70) !important; }
+html:not(.dark) .bg-gray-800\/60    { background-color: rgba(228,228,231,0.70) !important; }
-html:not(.dark) .bg-gray-800\/40    { background-color: rgba(241,245,249,0.60) !important; }
+html:not(.dark) .bg-gray-800\/40    { background-color: rgba(242,242,245,0.60) !important; }
-html:not(.dark) .bg-gray-800\/30    { background-color: rgba(241,245,249,0.50) !important; }
+html:not(.dark) .bg-gray-800\/30    { background-color: rgba(242,242,245,0.50) !important; }
-html:not(.dark) .bg-gray-700        { background-color: #e2e8f0 !important; }
+html:not(.dark) .bg-gray-700        { background-color: #e4e4e7 !important; }
 
 /* Borders */
-html:not(.dark) .border-gray-800   { border-color: #e2e8f0 !important; }
+html:not(.dark) .border-gray-800   { border-color: #e4e4e7 !important; }
-html:not(.dark) .border-gray-700   { border-color: #cbd5e1 !important; }
+html:not(.dark) .border-gray-700   { border-color: #d4d4d8 !important; }
-html:not(.dark) .border-gray-600   { border-color: #94a3b8 !important; }
+html:not(.dark) .border-gray-600   { border-color: #a1a1aa !important; }
-html:not(.dark) .border-gray-800\/60 { border-color: #e2e8f0 !important; }
+html:not(.dark) .border-gray-800\/60 { border-color: #e4e4e7 !important; }
-html:not(.dark) .divide-gray-800 > * + * { border-color: #e2e8f0 !important; }
+html:not(.dark) .divide-gray-800 > * + * { border-color: #e4e4e7 !important; }
 
 /* Text */
-html:not(.dark) .text-white        { color: #0f172a !important; }
+html:not(.dark) .text-white        { color: #18181b !important; }
-html:not(.dark) .text-gray-100     { color: #1e293b !important; }
+html:not(.dark) .text-gray-100     { color: #27272a !important; }
-html:not(.dark) .text-gray-200     { color: #1e293b !important; }
+html:not(.dark) .text-gray-200     { color: #27272a !important; }
-html:not(.dark) .text-gray-300     { color: #334155 !important; }
+html:not(.dark) .text-gray-300     { color: #3f3f46 !important; }
-html:not(.dark) .text-gray-400     { color: #475569 !important; }
+html:not(.dark) .text-gray-400     { color: #52525b !important; }
-html:not(.dark) .text-gray-500     { color: #64748b !important; }
+html:not(.dark) .text-gray-500     { color: #6b6b76 !important; }
-html:not(.dark) .text-gray-600     { color: #94a3b8 !important; }
+html:not(.dark) .text-gray-600     { color: #a1a1aa !important; }
 
 /* …except on saturated fills (primary/danger/success buttons), where the fill
  * stays dark in both themes — remapping to navy made their labels unreadable. */
@@ -116,15 +118,15 @@ html:not(.dark) .text-white:is(.bg-accent, .bg-sev-major, .bg-sev-moderate,
   .bg-green-600, .bg-green-700, .bg-yellow-700, .bg-yellow-800, .bg-gray-600) { color: #ffffff !important; }
 
 /* Hover states */
-html:not(.dark) .hover\:bg-gray-900:hover  { background-color: #f8fafc !important; }
+html:not(.dark) .hover\:bg-gray-900:hover  { background-color: #fafafa !important; }
 html:not(.dark) .hover\:bg-gray-900\/50:hover { background-color: rgba(255,255,255,0.75) !important; }
-html:not(.dark) .hover\:bg-gray-800:hover  { background-color: #f1f5f9 !important; }
+html:not(.dark) .hover\:bg-gray-800:hover  { background-color: #f2f2f5 !important; }
-html:not(.dark) .hover\:bg-gray-700:hover  { background-color: #e2e8f0 !important; }
+html:not(.dark) .hover\:bg-gray-700:hover  { background-color: #e4e4e7 !important; }
-html:not(.dark) .active\:bg-gray-800:active { background-color: #f1f5f9 !important; }
+html:not(.dark) .active\:bg-gray-800:active { background-color: #f2f2f5 !important; }
 
 /* Hover text */
-html:not(.dark) .hover\:text-gray-300:hover { color: #334155 !important; }
+html:not(.dark) .hover\:text-gray-300:hover { color: #3f3f46 !important; }
-html:not(.dark) .hover\:text-gray-200:hover { color: #1e293b !important; }
+html:not(.dark) .hover\:text-gray-200:hover { color: #27272a !important; }
 
 /* ── Accent badge palette (dark → light) ─────────────────────────────────── */
 
@@ -162,11 +164,11 @@ html:not(.dark) .text-green-400    { color: #16a34a !important; }
 html:not(.dark) .border-green-800  { border-color: #86efac !important; }
 
 /* Unconfigured / Info */
-html:not(.dark) .bg-indigo-950     { background-color: #eef2ff !important; }
+html:not(.dark) .bg-indigo-950     { background-color: #f0f1fd !important; }
-html:not(.dark) .bg-indigo-900     { background-color: #eef2ff !important; }
+html:not(.dark) .bg-indigo-900     { background-color: #f0f1fd !important; }
-html:not(.dark) .text-indigo-300   { color: #4338ca !important; }
+html:not(.dark) .text-indigo-300   { color: #4e58b8 !important; }
-html:not(.dark) .text-indigo-400   { color: #6366f1 !important; }
+html:not(.dark) .text-indigo-400   { color: #5e6ad2 !important; }
-html:not(.dark) .border-indigo-800 { border-color: #a5b4fc !important; }
+html:not(.dark) .border-indigo-800 { border-color: #c8ccf6 !important; }
 
 /* ── Pulsing ring for recording nodes ────────────────────────────────────── */
 @keyframes pulse-ring {
@@ -191,6 +193,13 @@ html:not(.dark) .border-indigo-800 { border-color: #a5b4fc !important; }
   z-index: 0;
 }
 
+/* The legend floats above the map's stacking context, so it would cover the
+ * expanded layers list (both live in the right-hand column). Hide it while the
+ * list is open. */
+.relative:has(.leaflet-control-layers-expanded) > .drb-legend {
+  visibility: hidden;
+}
+
 /* "Dark" base layer (#136): the prod tile URL is bright OSM, so dark-theme
  * overlay cards sat on a bright, busy map. Inverting the raster keeps the
  * keyless OSM source (CARTO's dark_all CDN proved flaky, #117) while giving
@@ -203,7 +212,7 @@ html:not(.dark) .border-indigo-800 { border-color: #a5b4fc !important; }
  * gray-900), so the theme's muted ink — light grey in dark mode, ~2.9:1 on
  * white — is pinned to a grey that holds AA on white (~6:1). */
 .leaflet-popup-content .text-ink-muted {
-  color: #5B6577;
+  color: #5F5F69;
 }
 
 /* Pinned 511 camera tiles (MapView DotCameraLayer): strip Leaflet's tooltip
@@ -224,17 +233,17 @@ html:not(.dark) .border-indigo-800 { border-color: #a5b4fc !important; }
  * "Ossining / Westchester" next to "no area set"). Dimmer + italic in dark. */
 .dark input::placeholder,
 .dark textarea::placeholder {
-  color: #5F6B80;
+  color: #6E6E78;
   font-style: italic;
 }
 html:not(.dark) input:not([type="submit"]):not([type="button"]):not([type="reset"]),
 html:not(.dark) select,
 html:not(.dark) textarea {
-  color: #0f172a;
+  color: #18181b;
 }
 html:not(.dark) input::placeholder,
 html:not(.dark) textarea::placeholder {
-  color: #94a3b8;
+  color: #a1a1aa;
 }
 
 /* ── Marketing/product surface additions (2026-08 overhaul) ─────────────────
@@ -245,8 +254,8 @@ html:not(.dark) textarea::placeholder {
  */
 
 /* Tinted accent surfaces (plan highlight cards, "included" checks, danger zones) */
-html:not(.dark) .bg-indigo-600\/10   { background-color: rgba(79,70,229,0.08) !important; }
+html:not(.dark) .bg-indigo-600\/10   { background-color: rgba(94,106,210,0.08) !important; }
-html:not(.dark) .border-indigo-600\/40 { border-color: rgba(79,70,229,0.35) !important; }
+html:not(.dark) .border-indigo-600\/40 { border-color: rgba(94,106,210,0.35) !important; }
 html:not(.dark) .bg-green-600\/10    { background-color: rgba(22,163,74,0.08) !important; }
 html:not(.dark) .bg-red-600\/10      { background-color: rgba(220,38,38,0.08) !important; }
 html:not(.dark) .border-red-600\/40  { border-color: rgba(220,38,38,0.35) !important; }
@@ -255,10 +264,10 @@ html:not(.dark) .border-yellow-600\/40 { border-color: rgba(202,138,4,0.35) !imp
 
 /* Marketing hero background — subtle radial glow, brand-neutral in both themes */
 .marketing-hero-bg {
-  background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(99,102,241,0.25), transparent 60%);
+  background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(94,106,210,0.25), transparent 60%);
 }
 html:not(.dark) .marketing-hero-bg {
-  background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(99,102,241,0.12), transparent 60%);
+  background-image: radial-gradient(ellipse 80% 50% at 50% -10%, rgba(94,106,210,0.12), transparent 60%);
 }
 
 /* Skeleton loading shimmer */

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

@@ -16,6 +16,7 @@ import { MachineOutputNotice } from "@/components/ui/MachineOutputNotice";
 import { useAuth } from "@/components/AuthProvider";
 import { c2api } from "@/lib/c2api";
 import { errorMessage } from "@/lib/c2error";
+import { diskState, DISK_TEXT_CLASS } from "@/lib/nodeDisk";
 import type { NodeRecord } from "@/lib/types";
 
 function ApprovalBadge({ status }: { status: string | null }) {
@@ -218,6 +219,17 @@ export default function NodeDetailPage() {
             <span className="text-ink">{value}</span>
           </div>
         ))}
+        {(() => {
+          const disk = diskState(node);
+          return (
+            <div className="flex justify-between px-4 py-2.5">
+              <span className="text-ink-muted">Disk</span>
+              <span className={disk ? DISK_TEXT_CLASS[disk.level] : "text-ink-muted"}>
+                {disk ? `${disk.level !== "ok" ? "⚠ " : ""}${disk.label}` : "not reported (node software too old)"}
+              </span>
+            </div>
+          );
+        })()}
         <div className="flex justify-between px-4 py-2.5">
           <span className="text-ink-muted">Approval</span>
           <ApprovalBadge status={node.approval_status ?? null} />

drb-frontend/components/LiveView.tsx

@@ -560,7 +560,11 @@ export function LiveView() {
           {/* Degraded → grey the map and its incident rail (the rail lives inside
               MapView, so it is wrapped here rather than edited). */}
           <div className={`w-full h-full transition-[filter,opacity] ${health.degraded ? "grayscale opacity-60" : ""}`}>
-          {nodesLoading || callsLoading || !mapState ? (
+          {/* Mount the map as soon as its starting view is known. The 500-call
+              window took ~9s on prod and used to hold the whole map back;
+              calls and paths now stream in once it lands. Nodes are only
+              awaited when there's no saved view, since they pick the centre. */}
+          {!mapState || (!mapState.view && nodesLoading) ? (
             <div className="w-full h-full flex items-center justify-center text-ink-muted text-sm">Loading map…</div>
           ) : (
             <MapView

drb-frontend/components/MapView.tsx

@@ -887,7 +887,7 @@ function CameraViewshedLayer({ highlightIds }: { highlightIds: Set<string> }) {
         const hot = highlightIds.has(c.id);
         return (
           <Polygon key={`vs-${c.id}`} positions={wedge}
-            pathOptions={{ color: hot ? "#3987E5" : "#A5B0C2", weight: hot ? 1 : 0.5, opacity: hot ? 0.8 : 0.4, fillOpacity: hot ? 0.18 : 0.06 }}>
+            pathOptions={{ color: hot ? "#8B93F0" : "#A9A9B3", weight: hot ? 1 : 0.5, opacity: hot ? 0.8 : 0.4, fillOpacity: hot ? 0.18 : 0.06 }}>
             <Tooltip sticky>{c.name} — approximate view (from the road&apos;s direction of travel, not a surveyed heading)</Tooltip>
           </Polygon>
         );
@@ -902,7 +902,7 @@ function CameraViewshedLayer({ highlightIds }: { highlightIds: Set<string> }) {
 function nearCameraIcon(): L.DivIcon {
   return L.divIcon({
     className: "",
-    html: `<div style="width:20px;height:16px;border-radius:4px;background:#0b1f3a;border:2px solid #3987E5;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 3px rgba(57,135,229,.25)"><svg width="12" height="9" viewBox="0 0 16 12"><rect x="0.5" y="1.5" width="11" height="9" rx="2" fill="none" stroke="#8DB9F0" stroke-width="1.5"/><polygon points="12,4 15.5,2 15.5,10 12,8" fill="#8DB9F0"/></svg></div>`,
+    html: `<div style="width:20px;height:16px;border-radius:4px;background:#1C1F42;border:2px solid #8B93F0;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 3px rgba(57,135,229,.25)"><svg width="12" height="9" viewBox="0 0 16 12"><rect x="0.5" y="1.5" width="11" height="9" rx="2" fill="none" stroke="#8DB9F0" stroke-width="1.5"/><polygon points="12,4 15.5,2 15.5,10 12,8" fill="#8DB9F0"/></svg></div>`,
     iconSize: [20, 16],
     iconAnchor: [10, 8],
   });
@@ -917,7 +917,7 @@ function NearCameraLayer({ cameras, head, onOpenCamera }: {
     <>
       {head && (
         <Circle center={head} radius={NEAR_CAMERA_KM * 1000} interactive={false}
-          pathOptions={{ color: "#3987E5", weight: 1, opacity: 0.6, fill: false, dashArray: "2 5" }} />
+          pathOptions={{ color: "#8B93F0", weight: 1, opacity: 0.6, fill: false, dashArray: "2 5" }} />
       )}
       {cameras.map(({ cam, km: d }) => (
         <Marker key={`near-${cam.id}`} position={[cam.lat, cam.lon]} icon={nearCameraIcon()} zIndexOffset={600}
@@ -1620,6 +1620,9 @@ function MapView({
   const [wxShown, setWxShown] = useState(() => startLayers.has("wx"));
   const [radarLoop, setRadarLoop] = useState(false);   // off by default (#237); not persisted
   const loopClock = useMemo(createLoopClock, []);
+  // Short viewports (laptops, the 352px incident-page map) start with the
+  // legend folded to a chip so it doesn't cover the right side of the map.
+  const [legendOpenAtStart] = useState(() => typeof window === "undefined" || window.innerHeight >= 760);
 
   // The altitude key only belongs in the legend while the opt-in Aircraft
   // overlay is actually on (server-26#185); same for the outage key (#184).
@@ -1931,7 +1934,14 @@ function MapView({
       </div>
 
       {/* ── Legend — shape-first, both themes. Never a bare colour swatch. ──── */}
-      <div className="absolute bottom-8 right-3 z-[1001] bg-surface/90 border border-line rounded-lg px-3 py-2.5 text-xs pointer-events-none space-y-2 max-h-[calc(100%-4rem)] overflow-y-auto">
+      {/* Collapsible (one click to a "Legend" chip) and hidden while the Leaflet
+          layers list is expanded: the map sits in a z-0 stacking context, so the
+          legend at z-1001 used to paint over the bottom of that list. */}
+      <details open={legendOpenAtStart} className="drb-legend group/legend absolute bottom-8 right-3 z-[1001] bg-surface/90 border border-line rounded-lg text-xs pointer-events-none max-h-[calc(100%-4rem)] overflow-y-auto">
+        <summary className="pointer-events-auto cursor-pointer list-none select-none px-3 py-1.5 text-ink-muted font-medium text-[10px] uppercase tracking-wide flex items-center gap-1.5">
+          <span className="group-open/legend:hidden">▸</span><span className="hidden group-open/legend:inline">▾</span> Legend
+        </summary>
+        <div className="px-3 pb-2.5 space-y-2">
         <div className="space-y-1">
           <p className="text-ink-muted font-medium text-[10px] uppercase tracking-wide">Severity</p>
           {(["major", "moderate", "minor", "routine"] as Severity[]).map((sev) => (
@@ -2071,6 +2081,7 @@ function MapView({
           ))}
         </div>
         </div>
+      </details>
 
       {/* ── Incident overlay panel ───────────────────────────────────────────── */}
       {incidents.length > 0 && (

drb-frontend/components/NodeCard.tsx

@@ -1,6 +1,7 @@
 import Link from "next/link";
 import { StatusBadge } from "@/components/StatusBadge";
 import type { NodeRecord, SystemRecord } from "@/lib/types";
+import { diskState } from "@/lib/nodeDisk";
 
 interface Props {
   node: NodeRecord;
@@ -45,6 +46,15 @@ export function NodeCard({ node, system, linkToDetail = true }: Props) {
             <span className="text-ink-2">{lastSeen}</span>
           </div>
         </div>
+        {(() => {
+          const disk = diskState(node);
+          if (!disk || disk.level === "ok") return null;
+          return (
+            <div className={`mt-3 text-xs font-mono border-t border-line pt-2 ${disk.level === "critical" ? "text-sev-major" : "text-sev-moderate"}`}>
+              ⚠ Disk {disk.level === "critical" ? "nearly full" : "low"}: {disk.label}
+            </div>
+          );
+        })()}
         {!node.configured && (
           <div className="mt-3 text-xs text-indigo-400 font-mono border-t border-line pt-2">
             ⚠ Needs configuration

drb-frontend/lib/nodeDisk.ts

@@ -0,0 +1,39 @@
+import type { NodeRecord } from "@/lib/types";
+
+// Free disk on the node's host (node-26#41). A full disk stopped node-002
+// recording for 17 days while every surface still showed it Online, so low
+// space is flagged wherever a node is shown.
+
+export type DiskLevel = "ok" | "low" | "critical";
+
+export interface DiskState {
+  level: DiskLevel;
+  freePct: number;
+  label: string; // e.g. "43.2 GB free of 98 GB (44%)"
+}
+
+const LOW_PCT = 15;
+const CRITICAL_PCT = 5;
+const CRITICAL_BYTES = 2 * 1024 ** 3; // a 2 GB floor regardless of disk size
+
+function gb(bytes: number): string {
+  const v = bytes / 1024 ** 3;
+  return `${v >= 10 ? v.toFixed(0) : v.toFixed(1)} GB`;
+}
+
+/** null when the node has never reported (older node software). */
+export function diskState(node: Pick<NodeRecord, "disk_free_bytes" | "disk_total_bytes">): DiskState | null {
+  const free = node.disk_free_bytes;
+  const total = node.disk_total_bytes;
+  if (free == null || !total) return null;
+  const freePct = Math.max(0, Math.min(100, (free / total) * 100));
+  const level: DiskLevel =
+    freePct < CRITICAL_PCT || free < CRITICAL_BYTES ? "critical" : freePct < LOW_PCT ? "low" : "ok";
+  return { level, freePct, label: `${gb(free)} free of ${gb(total)} (${Math.round(freePct)}%)` };
+}
+
+export const DISK_TEXT_CLASS: Record<DiskLevel, string> = {
+  ok: "text-ink-2",
+  low: "text-sev-moderate",
+  critical: "text-sev-major",
+};

drb-frontend/lib/types.ts

@@ -82,6 +82,9 @@ export interface NodeRecord {
   /** The dongle OP25 is actually using, per the node. */
   op25_sdr_serial?: string | null;
   sdr_count?: number | null; // null = never reported
+  /** Host disk the node records to (node-26#41); null/absent = not reported. */
+  disk_free_bytes?: number | null;
+  disk_total_bytes?: number | null;
   /** node-26#24: conventional channels from the last checkin; [] on a trunked system. */
   radio_channels?: RadioChannel[] | null;
   enforce_override_timeout?: boolean;

drb-frontend/tailwind.config.ts

@@ -22,6 +22,17 @@ const config: Config = {
       // work — a bare var() hex gives Tailwind nothing to apply alpha to, and the
       // class silently generates no rule (map overlays rendered see-through).
       colors: {
+        // "Iris" palette: the legacy raw gray-*/indigo-* classes (~350 uses)
+        // resolve to graphite + the brand accent instead of Tailwind's slate-blue
+        // defaults, so un-migrated components match the tokens above.
+        gray: {
+          50: "#F7F7F8", 100: "#EDEDEF", 200: "#E4E4E7", 300: "#C9C9D0", 400: "#A1A1AA",
+          500: "#7A7A85", 600: "#4A4B53", 700: "#2A2B31", 800: "#1A1B1F", 900: "#111214", 950: "#08090A",
+        },
+        indigo: {
+          50: "#F0F1FD", 100: "#E2E4FB", 200: "#C8CCF6", 300: "#A8AEF1", 400: "#8B93F0",
+          500: "#6F79E0", 600: "#5E6AD2", 700: "#4E58B8", 800: "#3F4794", 900: "#313770", 950: "#1C1F42",
+        },
         page:          tok("page"),
         surface:       tok("surface"),
         raised:        tok("raised"),
@@ -51,7 +62,7 @@ const config: Config = {
       boxShadow: {
         card: "0 1px 2px 0 rgb(0 0 0 / 0.4), 0 1px 3px 0 rgb(0 0 0 / 0.3)",
         "card-hover": "0 4px 12px 0 rgb(0 0 0 / 0.45), 0 2px 4px 0 rgb(0 0 0 / 0.3)",
-        glow: "0 0 0 1px rgb(99 102 241 / 0.4), 0 0 24px 0 rgb(99 102 241 / 0.25)",
+        glow: "0 0 0 1px rgb(94 106 210 / 0.4), 0 0 24px 0 rgb(94 106 210 / 0.25)",
       },
       animation: {
         "fade-in": "fade-in 0.4s ease-out",