fix: Windows core build, embedded init, byte-exact paths, version info

Closes the remaining core/lib/termio/GTK rows (final-Z2.md):
- ghostty-core compiles for Windows (Unix-only exec fields and file
  modes gated); checked with cargo check --target x86_64-pc-windows-gnu.
- Embedded init: ensure_locale, SIGPIPE ignored in ghostty_init for
  C/Swift hosts, Apple crash tags; the argv passed to ghostty_init feeds
  ghostty_config_load_cli_args; ghostty_config_load_file accepts
  non-UTF-8 paths.
- OSC 7 pwd, embedded surface cwd/command/env/initial input,
  ghostty_surface_text and GTK file drops keep raw bytes.
- XTVERSION, TERM_PROGRAM_VERSION, the About dialog and crash metadata
  use ghostty_build_info instead of hardcoded versions.

Test Plan:
- cargo test --workspace (3327 passed)
- cargo clippy --workspace --all-targets -- -D warnings

src/main.rs

@@ -20,16 +20,18 @@ fn main() -> ExitCode {
 }
 
 fn real_main() -> ExitCode {
-    // Byte-safe argv (`std::env::args()` panics on non-UTF-8 arguments).
-    let args: Vec<String> = ghostty_os::args::collect_lossy();
+    // Raw argv bytes (Zig `[]const u8`); `std::env::args()` would panic on
+    // non-UTF-8 arguments and a lossy conversion would change them.
+    let args: Vec<std::ffi::OsString> = ghostty_os::args::collect_os();
 
     // We first start by initializing our global state. This sets up
     // process-level state we need to run the terminal. We detect whether a
     // CLI action was requested so logging can be silenced for it.
-    let action_requested = !matches!(ghostty_cli::ghostty::detect(&args), Ok(None));
+    let action_requested = !matches!(ghostty_cli::ghostty::detect_os(&args), Ok(None));
     global::init(InitOptions {
         action: action_requested,
         resources_dir: Some(ghostty_apprt_gtk::flatpak::resources_dir),
+        ..InitOptions::default()
     });
     // Zig `global.init` runs `ensureLocale` before anything locale dependent.
     ghostty_apprt_gtk::class::application::init_locale();
@@ -38,7 +40,7 @@ fn real_main() -> ExitCode {
     // Execute our action if we have one.
     if action_requested {
         ghostty_cli::new_window::set_ipc_handler(new_window_ipc);
-        if let Some(code) = ghostty_cli::run_from_args(&args) {
+        if let Some(code) = ghostty_cli::ghostty::run_from_os_args(&args) {
             return ExitCode::from(code);
         }
     }