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/aethersx2.yml

@@ -8,6 +8,11 @@ profiled_date: "2026-08-11"
 source_commit: "1d1f795dfc70e38da67724c7298779260f513889"
 upstream_commit: "f0523f8acb1d3a765ee73b74cffec63093569199"
 core_version: "1.5-3939"
+version_basis:
+  kind: package
+  url: "https://web.archive.org/web/20230320102332/https://www.aethersx2.com/archive/desktop/mac/AetherSX2-v1.5-3939-mac.zip"
+  pattern: 'AetherSX2-v([0-9.]+-[0-9]+)-mac\.zip'
+  artifact: "AetherSX2-v1.5-3939-mac.zip"
 display_name: "Sony - PlayStation 2 (AetherSX2)"
 cores:
   - aethersx2