fix(hook): build version.dll as its own workspace root

openfut-hook is a Windows version.dll proxy injected into the FIFA client, but
as a member of the parent OpenFUT workspace its [profile.release] was silently
ignored (cargo only honors profiles at the workspace root, and forbids per-package
`panic` overrides). The shipped DLL was therefore built opt-level=3 /
strip=debuginfo / panic=UNWIND -- and unwinding a Rust panic across the
DllMain/FFI boundary into the game process is UB.

Add an empty [workspace] table so the crate is its own root and its release
profile (panic=abort, strip=symbols, opt-level=s) applies. Paired with the
parent workspace `exclude`. Also lands the artifact in openfut-hook/target/
(matching the launcher config.rs default hook_dll_path) instead of the parent
target/. Cross-build verified: panic=abort now emitted; DLL 1200126 -> 861696 B.

openfut-hook/Cargo.toml

@@ -1,3 +1,9 @@
+# Standalone workspace root: this Windows-only version.dll proxy is deliberately
+# NOT a member of the OpenFUT workspace (see that root's `exclude`) so its own
+# [profile.release] below actually applies. An empty [workspace] table stops Cargo
+# from walking up and re-attaching this crate to the parent workspace.
+[workspace]
+
 [package]
 name = "openfut-hook"
 version = "0.1.0"