v0.1.3 — DeFlock via Overpass + per-source health UI

The cdn.deflock.me CDN is gated behind Cloudflare bot mitigation that
mobile HTTP clients can't pass. The live deflock-app Flutter client
abandoned that path; it POSTs Overpass-QL queries directly to
overpass.deflock.org (with overpass-api.de as a fallback). Verified by
hitting the same endpoint from curl — 22 ALPRs returned for the
Springfield VA bbox, matching the user's screenshot of the working app.

DeflockClient rewrite:
  - POST [out:json][timeout:25];(node[surveillance][type=ALPR](bbox););out body;
  - 5 km half-width bbox around the user
  - 24h on-disk cache keyed by 0.05° grid cell (revisits don't refetch)
  - Returns sealed FetchResult: Success(points) | Failed(reason)

DeflockScanner update:
  - Replaces 20° tile concept with distance-based refetch (1.5 km threshold)
  - Records SourceHealth on each fetch outcome

Waze: reCAPTCHA gating confirmed. WazeClient.fetchPoliceNear now returns
sealed FetchResult; WazeScanner records SourceHealth.FAILED with
"Upstream blocked (HTTP 403)" so the user sees why no Waze data is
flowing instead of silent zeros.

New fusion/SourceHealth.kt — per-source MutableStateFlow registry,
record(source, ok, message) + reset() called on service start/stop.

UI: SourceRow in the bottom-sheet drill-down now shows the health
message in orange when status = FAILED instead of "no detections".

versionCode 3 → 4, versionName 0.1.2 → 0.1.3.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/src/main/kotlin/org/soulstone/overwatch/ui/MainScreen.kt

@@ -33,6 +33,7 @@ import androidx.compose.material3.ModalBottomSheet
 import androidx.compose.material3.Text
 import androidx.compose.material3.rememberModalBottomSheetState
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
@@ -50,6 +51,7 @@ import androidx.compose.ui.unit.sp
 import kotlinx.coroutines.launch
 import org.soulstone.overwatch.fusion.DetectionEvent
 import org.soulstone.overwatch.fusion.DetectionSource
+import org.soulstone.overwatch.fusion.SourceHealth
 import org.soulstone.overwatch.fusion.ThreatLevel
 import org.soulstone.overwatch.ui.theme.ThreatColors
 
@@ -272,6 +274,9 @@ private fun SourcesPanel(events: List<DetectionEvent>) {
 
 @Composable
 private fun SourceRow(source: DetectionSource, events: List<DetectionEvent>) {
+    val health by SourceHealth.flowFor(source).collectAsState()
+    val unreachable = health.status == SourceHealth.Status.FAILED
+
     Card(
         modifier = Modifier.fillMaxWidth(),
         colors = CardDefaults.cardColors(
@@ -294,6 +299,7 @@ private fun SourceRow(source: DetectionSource, events: List<DetectionEvent>) {
                 )
                 val maxScore = events.maxOfOrNull { it.score } ?: 0
                 val statusColor = when {
+                    unreachable -> MaterialTheme.colorScheme.onSurfaceVariant
                     maxScore >= ThreatLevel.RED.minScore -> ThreatColors.Red
                     maxScore >= ThreatLevel.ORANGE.minScore -> ThreatColors.Orange
                     maxScore >= ThreatLevel.YELLOW.minScore -> ThreatColors.Yellow
@@ -306,7 +312,15 @@ private fun SourceRow(source: DetectionSource, events: List<DetectionEvent>) {
                         .background(statusColor)
                 )
             }
-            if (events.isEmpty()) {
+            if (unreachable) {
+                Spacer(Modifier.height(4.dp))
+                Text(
+                    text = health.message ?: "Source unavailable",
+                    color = ThreatColors.Orange,
+                    fontSize = 11.sp,
+                    fontFamily = FontFamily.Monospace
+                )
+            } else if (events.isEmpty()) {
                 Spacer(Modifier.height(4.dp))
                 Text(
                     text = "no detections",