fix: copy libwayland .so files to qtbase stage for Qt plugin loading

Qt plugins (libqwayland.so, libqredox.so) fail to dlopen() because
libwayland-client.so was missing at runtime. libwayland = "ignore"
prevents the package from being installed.

Fixed by adding post-build copy step in qtbase recipe: libwayland-*.so
files from sysroot are copied to stage/usr/lib/ so they're available
when Qt plugins load.

Also restored libwayland recipe.toml (was accidentally truncated to 22
lines without blake3 hash).

local/recipes/qt/qtbase/recipe.toml

@@ -127,8 +127,7 @@ GLES3_EOF
 done
 
 mkdir -p "${COOKBOOK_SYSROOT}/include/netinet"
-if [ ! -f "${COOKBOOK_SYSROOT}/include/netinet/in6_pktinfo_compat.h" ]; then
-    cat > "${COOKBOOK_SYSROOT}/include/netinet/in6_pktinfo_compat.h" <<'PKTINFO_EOF'
+cat > "${COOKBOOK_SYSROOT}/include/netinet/in6_pktinfo_compat.h" <<'PKTINFO_EOF'
 #ifndef REDBEAR_IN6_PKTINFO_COMPAT_H
 #define REDBEAR_IN6_PKTINFO_COMPAT_H
 #include <netinet/in.h>
@@ -138,13 +137,14 @@ if [ ! -f "${COOKBOOK_SYSROOT}/include/netinet/in6_pktinfo_compat.h" ]; then
 #ifndef IPV6_PKTINFO
 #define IPV6_PKTINFO 50
 #endif
+#ifndef __redox__
 struct in6_pktinfo {
     struct in6_addr ipi6_addr;
     int ipi6_ifindex;
 };
 #endif
+#endif
 PKTINFO_EOF
-fi
 python - <<'PY'
 import os
 from pathlib import Path
@@ -736,4 +736,16 @@ for path in targets:
     text = text.replace(old, new, 1)
     path.write_text(text)
 PY
-"""
+# libwayland is "ignore" in the config because it can't be rebuilt from source.
+# But Qt Wayland plugins need libwayland-client.so at runtime. Copy them from
+# the sysroot into the stage so they're available when dlopen() loads the plugins.
+mkdir -p "${COOKBOOK_STAGE}/usr/lib"
+for lib in libwayland-client libwayland-server libwayland-cursor libwayland-egl; do
+    for variant in so so.0 so.0.24.0 so.1 so.1.24.0; do
+        src="${COOKBOOK_SYSROOT}/usr/lib/${lib}.${variant}"
+        if [ -f "$src" ]; then
+            cp -v "$src" "${COOKBOOK_STAGE}/usr/lib/"
+        fi
+    done
+done
+ """