Add card::get_assumed_property #836

Job	Run time
Linux-musl (travis-core-linux-musl)	1m 21s
Linux-gcc-14	3m 18s
Android (21.4.7075529)	3m 9s
Mac-os	1m 18s
Linux-musl (travis-core-linux-musl-apicheck)	1m 22s
Android (16.1.4479499)	4m 41s
Linux-musl (travis-core-linux-musl-aarch64)	1m 25s
Android (26.1.10909125)	2m 14s
Mac-os-aarch64	42s
Mac-os-aarch64-cctools	2m 6s
Windows-mingw (win32)	1m 38s
Mac-os-cctools	2m 4s
Windows-mingw (x64)	1m 43s
Windows-visual-studio (Win32)	1m 55s
Windows-visual-studio (x64)	1m 57s
Windows-visual-studio (ARM)	2m 4s
Windows-visual-studio (ARM64)	2m 8s
Mac-os-universal	12s
Mac-os-universal-cctools	6s
Notify-success	2s
	35m 25s

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