Windows: no console, app icons, Calc tiles paint, theme switch no edit

Release apps use the GUI subsystem; workers, Git and cmd start with
CREATE_NO_WINDOW. Each exe embeds its icon as resource 1, which gpui
also loads for the window. Patch 0044: Win32 devices take no client
buffer, so tiles and slide layers paint at full size, then copy.
ely.xcd gives both schemes one notes colour: Calc rewrote the comment
style on each switch and left an undo step. lo-patches.sh keeps LF.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

crates/ely-platform/src/git.rs

@@ -45,7 +45,7 @@ pub fn parse_version(text: &str) -> Option<(u32, u32)> {
 
 /// What `git --version` says, once it succeeds.
 pub fn version_of(path: &Path) -> io::Result<(String, (u32, u32))> {
-    let output = Command::new(path).arg("--version").output()?;
+    let output = ely_ipc::windowless(&mut Command::new(path)).arg("--version").output()?;
     if !output.status.success() {
         let said = String::from_utf8_lossy(&output.stderr).trim().to_string();
         return Err(io::Error::other(format!("{} --version failed ({}): {said}", path.display(), output.status)));
@@ -83,7 +83,7 @@ fn own(dir: &Path) -> PathBuf {
 /// Git at `git` in `dir`, as Ely runs it.
 pub fn command(git: &Path, dir: &Path, args: &[&str]) -> Command {
     let mut command = Command::new(git);
-    command
+    ely_ipc::windowless(&mut command)
         .args(args)
         .current_dir(dir)
         // Reads never take the index lock from an outside Git.