Ψ-W2-T1 remediation: scrim the card name over the waveform, hedge two SDK claims, fix a UTF-8-truncation empty-label bug, file the legibility DAW deferral

src/core/capture/capture_name.cpp

@@ -56,6 +56,10 @@ CaptureName composeCaptureName(const CaptureNameInputs& in) {
     if (base.empty()) base = trimmed(in.fallback);
     if (base.empty()) base = "capture";
     base = truncateUtf8(base, kMaxSourceNameBytes);
+    // truncateUtf8 backs off over continuation bytes, so a name whose first kMaxSourceNameBytes
+    // bytes are ALL continuation bytes (0x80-0xBF) backs off to nothing — re-apply the "never an
+    // empty label" fallback after truncation, not just before it.
+    if (base.empty()) base = "capture";
 
     CaptureName out;
     out.label    = base;