refactor(launcher): retire FIFA 23; keep the hook game-generic by feature

FIFA 23 is not in development and was never a valid template for FIFA 17
(different game, different in-memory layout). Remove it as a build target and
as scaffolding, while preserving the per-game feature architecture so future
games plug in as new modules — never by copying retired reverse-engineering.

Hook (openfut-hook):
- Delete install_hooks_fifa23 and every FIFA23-only module: config, hooks,
  transport_watch, ssl_patch, origin_spy, tls_bypass, dial_notification, probe
  (+ probe feature), recv_hook (+ capture_baseline feature), plus the orphan
  FIFA23 LSX/Origin files lsx.rs and ea_stub.rs. ~3.6k lines; git + Vault retain
  the research.
- lib.rs is now game-generic: a per-game feature selects that game's module and
  install_hooks dispatches to it. No game feature => compile_error!("select a
  game, e.g. --features fifa17"). --features fifa17 remains the build invariant.
- Drop the crate-wide  blanket (it existed only
  to hide the compiled-but-unused FIFA23 modules). Replace with narrow, justified
  #[allow(dead_code)] on the three FIFA17 SBC RE-scaffolding items it was masking,
  so the candidate stays behavior-identical.
- connect_hook: the redirect is now always the config-driven path (openfut-common
  target from openfut.cfg); the hardcoded-loopback rewrite and its dead consts are
  gone. Removed the FIFA23-era transport_watch diagnostics from the shared
  connect/WSAConnect/ConnectEx detours. Deleted unused iat::patch_iat_in.

Launcher:
- fifa_game_dir no longer defaults to a hardcoded '.../FIFA 23' Steam path; it is
  empty by default, matching the launcher's own rule that it never invents a path
  to somebody's game install (like openfut_server_host and game_profile).
- Generalise the remaining 'FIFA 23' doc literals in config.rs / setup.rs.

Proof: fifa17 clippy -D warnings clean; no-game build fails with the documented
compile_error; launcher 75 tests pass unchanged; launcher + hook cross-build
x86_64-pc-windows-gnu; cargo fmt --check clean; zero FIFA23 symbols/literals
remain. FIFA17 armed-module set unchanged (redirect + SBC/store/season).

openfut-hook/Cargo.toml

@@ -13,17 +13,10 @@ edition = "2021"
 crate-type = ["cdylib"]
 
 [features]
-# Build with `--features capture_baseline` to DISABLE the LSX 3216→3217 redirect,
-# so FIFA's LSX goes to anadius's in-process server (for capturing anadius's real
-# responses). Default build keeps the redirect (LSX → our bridge).
-capture_baseline = []
-# Build with `--features probe` to install passive logging detours on FIFA's
-# in-process online-flow functions (GoOnline, GetInternetConnectedState, event
-# deserializers). Writes PROBE lines to C:\openfut_hook.log for RE. See probe.rs.
-probe = []
-# Build with `--features fifa17` for the FIFA 17 injection path. DllMain runs ONLY
-# the minimal FIFA-17-safe logic in fifa17.rs (prove injection, dump module map,
-# patch DirtySDK/ProtoSSL cert-verify) and skips ALL the FIFA-23-specific hooking.
+# Per-game selection: each supported game is a feature enabling its module. Exactly
+# one MUST be set (the crate emits a compile_error otherwise). Build the deployed
+# artifact with `--features fifa17`. Add a future game as a new feature here plus a
+# `mod <game>;` + dispatch arm in lib.rs — never by copying a retired game's code.
 fifa17 = []
 
 [dependencies]