fix(amsat): mark satellites whose reports were crowded out of the global pull

The API caps at 500 records regardless of the hours requested. With 88 catalog
satellites, eight of them more active than 50 reports per 72 hours, quieter
satellites get crowded out. Measured live: the global pull returned 500 reports
covering 36 satellites, while the summary endpoint reported 743 reports across 38
satellites. 26 of 38 satellites had incomplete data, and two (PO-101_[FM] and
TEVEL2-6_[FM]) had zero reports in the global pull despite having reports in the
summary.

The summary endpoint (api/v1/summary.php) returns per-satellite report counts in
one request, so the fix adds one extra call rather than the 88-request
alternative of per-satellite pulls. A satellite whose global pull is incomplete
gets a subdued "68 / 116" marker next to its name, telling the operator the page
knows there is more data it could not fetch. The marker is silent when the
summary is unavailable or the counts match, so the feature degrades gracefully.

The earlier no-data grey (0xFFE8E8E8) already prevented the worst case: slots
crowded out of the global pull were marked as "we never looked" rather than
claiming "nobody reported". The marker now closes the remaining gap: the page
can honestly say "we know there are 116 reports for this satellite but we could
only show you 68 of them".

Also fixed a subagent mutation-testing residue: the coverage floor had been
moved from global (reports.minOfOrNull) to per-satellite (satReports.minOfOrNull)
and left in the tree. One test caught it (coverage is judged from all reports,
not one satellite's), proving the test has teeth.

Adds getAmSatSummary to IRemoteSource and RemoteSource, parseSummary to
AmSatRepository, and summaryCount to SatStatus. All eight test-file
implementations of IRemoteSource were updated for the new method.

feature/status/src/main/java/com/rtbishop/look4sat/feature/status/SatStatusScreen.kt

@@ -251,6 +251,21 @@ private fun StatusRow(status: SatStatus, onClickDay: (SatDay) -> Unit) {
             overflow = TextOverflow.Ellipsis,
             modifier = Modifier.weight(1f).padding(end = 4.dp)
         )
+        // When the global report pull is incomplete, show how many we actually got
+        // versus what the summary endpoint says exists. The summary is a single extra
+        // request, so this is honest without the 88-request cost of per-satellite pulls.
+        if (status.summaryCount > 0) {
+            val actual = status.days.sumOf { day -> day.slots.sumOf { it.count } }
+            if (actual < status.summaryCount) {
+                Text(
+                    text = "$actual / ${status.summaryCount}",
+                    fontSize = 11.sp,
+                    color = Color(0xFF888888),
+                    maxLines = 1,
+                    modifier = Modifier.padding(end = 8.dp)
+                )
+            }
+        }
         status.days.forEach { day ->
             DayCell(
                 day = day,