ci: clippy on stable 1.96 and the Windows-only pre-existing failures

Three boolean expressions clippy now wants simplified (pipeline's
normalize_wb, engine's learn_as_shot_wb, per nonminimal_bool), a
descriptor_copy only its #[cfg(unix)] test calls (dead on Windows), and
desktop_entries_give_their_program is unix-gated (Path::is_absolute
decides by the platform, and desktop entries run there). None change
behaviour; all four fail cargo xtask ci on this toolchain from main.

Co-Authored-By: GLM 5.3 Flash <noreply@z.ai>

apps/lightcraft/src/editors.rs

@@ -216,6 +216,8 @@ mod tests {
         assert_eq!(reg_value("ERROR: The system was unable to find the specified registry key or value."), None);
     }
 
+    /// (Unix: `Path::is_absolute` decides by the platform's rules, and desktop entries run there)
+    #[cfg(unix)]
     #[test]
     fn desktop_entries_give_their_program() {
         let appimage = "[Desktop Entry]\nName=PhotoCraft\nExec=\"/home/simon/Apps/photocraft-1.2-linux-x86_64.AppImage\" %F\n";

crates/catalog/src/lock.rs

@@ -135,8 +135,9 @@ impl LibraryLock {
     }
 
     /// Another descriptor on the locked file: what a process spawned by another thread holds
-    /// between fork and exec (a `dup` refers to the same open file description). Tests only.
-    #[cfg(test)]
+    /// between fork and exec (a `dup` refers to the same open file description). Tests only (its
+    /// only test stands in for a fork, which is Unix).
+    #[cfg(all(test, unix))]
     pub(crate) fn descriptor_copy(&self) -> Option<File> {
         self.file.as_ref().and_then(|f| f.try_clone().ok())
     }

crates/engine/src/media.rs

@@ -1391,7 +1391,7 @@ impl crate::Session {
     /// says and what a smart preview renders with. Only for raws edited in Kelvin.
     fn learn_as_shot_wb(&mut self, id: PhotoId, info: &SourceInfo) {
         let Some(p) = self.catalog.photo(id) else { return };
-        if !(info.raw && !info.relative_wb && p.develops_raw() && !p.relative_wb()) {
+        if !info.raw || info.relative_wb || !p.develops_raw() || p.relative_wb() {
             return;
         }
         let read = (info.as_shot_temp, info.as_shot_tint);

crates/pipeline/src/local.rs

@@ -147,7 +147,7 @@ pub fn legacy_to_kelvin(temp: f64, tint: f64, as_shot: (f64, f64)) -> (f64, f64)
 /// edited on a rendered photo or a raw without matrices never pass for Kelvin when pasted onto one that has them.
 pub fn normalize_wb(d: &mut DevelopSettings, info: &SourceInfo) {
     use lightcraft_develop::{WbMode, WbScale};
-    if !(info.raw && !info.relative_wb) {
+    if !info.raw || info.relative_wb {
         d.wb.scale = WbScale::Legacy;
         return;
     }