fix: state standalone versions from their code

Each standalone profile records where its version is read: the source
at its pin (clk 2026-07-23-136-g9020107, shadps4 0.20.1 WIP, eden
v0.2.0-401-g26a03d2), the APK, binary or archive read (kind package),
or, where no reading can be made, kind unverified with the reason: a
host the tools cannot read, a forge gone or not answering, no build
recorded as read, a pin on another branch. Those keep their value,
unconfirmed.

emulators/ghostship.yml

@@ -6,6 +6,10 @@ upstream: "https://github.com/HarbourMasters/Ghostship"
 source_commit: "deb091c29caff57dd986398087b058f16b11911e"
 profiled_date: "2026-10-20"
 core_version: "3.0.0"
+version_basis:
+  kind: tag
+  tag: "3.0.0"
+  distance: 0
 display_name: "Super Mario 64 (Ghostship)"
 cores: [ghostship]
 systems: [ghostship]