chore(sdui): re-record plugin-grid's manifest source record after merging main

Claude-Session: https://claude.ai/code/session_016zsTRTJ3SP3dpjEkyLrzWS
Co-authored-by: Claude <noreply@anthropic.com>

Author: claude

scripts/sdui-manifest.sources/plugin-grid.json

@@ -1 +1 @@
-{"package":"ui/packages/plugin-grid","sources":38,"sha256":"d34e7acc9010e7fc875131b416c4a83a2bac115c893c2067d3ccb85fcaf8bcd0","manifestSha256":"1f6e1ccb925a678eaa393f9091dfc7d0285e4e3626e0a5c61a5474687debabb7"}
+{"package":"ui/packages/plugin-grid","sources":38,"sha256":"f6f7b1cbd89a1536a6e33febf4db131b8d526bd7281be460c401dccb8e97876a","manifestSha256":"1f6e1ccb925a678eaa393f9091dfc7d0285e4e3626e0a5c61a5474687debabb7"}