chore(release): prepare Pebrel 1.9.0 for installation testing

Synchronize product crate versions, local dependency constraints, lockfiles, Windows resources and installer defaults. Add bilingual changes and verified contributor credits before CI packaging.

nebula_split/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nebula-split"
-version = "1.8.2"
+version = "1.9.0"
 license = "GPL-3.0-or-later"
 description = "Shared split-pane rules: layout tree, geometry, divider drag and directional focus"
 publish = false