fix(ci): bound stalled Apple probes and record verified native APK

Mac Node bootstrap and checkout now pass, but Apple-tool preflight stalled after Xcode version output for twenty minutes. Add per-command deadlines and diagnostics without changing licenses/host settings; fourteen preflight/probe regressions pass. Record successful Android build/upload, downloaded APK signature/version and emulator install/launch, and unchanged missing-KVM matrix failures. No Apple app success is claimed.

scripts/check-apple-tools.py

@@ -0,0 +1,37 @@
+#!/usr/bin/env python3
+"""Bounded Apple toolchain probes; never install components or change the host."""
+import subprocess
+import sys
+
+
+def probe(command, timeout=60):
+    label = " ".join(command)
+    print(f"Runner prerequisite: checking {label} (timeout {timeout}s)", flush=True)
+    try:
+        result = subprocess.run(command, capture_output=True, text=True, timeout=timeout, check=False)
+    except subprocess.TimeoutExpired as error:
+        raise RuntimeError(
+            f"{label} did not return within {timeout}s. Check selected Xcode, first-launch components "
+            "and CoreSimulator in the runner user's interactive login session; run this command there. "
+            "CI has not accepted licenses or changed host settings."
+        ) from error
+    except OSError as error:
+        raise RuntimeError(f"Cannot start {label}: {error}") from error
+    if result.returncode:
+        raise RuntimeError(f"{label} exited {result.returncode}: {(result.stderr or result.stdout).strip()}")
+    return result.stdout
+
+
+def main():
+    try:
+        print(probe(["xcodebuild", "-version"]).strip(), flush=True)
+        probe(["xcrun", "--find", "swift"])
+        probe(["xcrun", "simctl", "list", "devices", "available"])
+    except RuntimeError as error:
+        print(f"Runner prerequisite: {error}", file=sys.stderr)
+        return 1
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())