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/singe2.yml

@@ -5,6 +5,11 @@ source: "https://singeengine.com"
 upstream: "https://singeengine.com"
 profiled_date: "2026-10-20"
 core_version: "2.10"
+version_basis:
+  kind: package
+  url: "https://singeengine.com"
+  pattern: 'Singe-v(\d+\.\d+)-Windows'
+  artifact: "Singe-v2.10-Windows-x86_64.exe"
 display_name: "Laserdisc (Singe 2)"
 mode: standalone
 cores: