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/srb2.yml

@@ -6,6 +6,10 @@ upstream: "https://git.do.srb2.org/STJr/SRB2"
 profiled_date: "2026-10-20"
 source_commit: "639b58c6d718452ef343a0bc927d043bed9e40d6"
 core_version: "2.2.15"
+version_basis:
+  kind: file
+  path: "src/version.h"
+  pattern: '#define\s+SRB2VERSION\s+"([^"]+)'
 display_name: "Sonic Robo Blast 2"
 cores: [srb2]
 systems: []