Use native Python command for Linux release verification and refresh rollout status

apps/desktop/src-tauri/build.rs

@@ -14,6 +14,9 @@ fn main() {
     println!("cargo:rerun-if-changed=../../../crates/searchi-extract-worker/src");
     println!("cargo:rerun-if-changed=../../../Cargo.lock");
     println!("cargo:rerun-if-changed=../../../Cargo.toml");
+    for crate_name in ["searchi-core", "searchi-media", "searchi-extract-worker"] {
+        println!("cargo:rerun-if-changed=../../../crates/{crate_name}/Cargo.toml");
+    }
     if std::env::var("PROFILE").as_deref() == Ok("release") {
         let metadata = std::fs::symlink_metadata(&helper).unwrap_or_else(|_| {
             panic!("Missing packaged document helper. Run tools/stage_extraction_worker.py before building a release.")
@@ -29,7 +32,7 @@ fn main() {
         && matches!(target.as_str(), "windows" | "linux")
     {
         let root = std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join("../../..");
-        let status = std::process::Command::new("python")
+        let status = std::process::Command::new(if cfg!(windows) { "python" } else { "python3" })
             .arg(root.join("tools/stage_extraction_worker.py"))
             .args(["--verify-only", "--platform", &target, "--architecture"])
             .arg(std::env::var("CARGO_CFG_TARGET_ARCH").expect("target architecture"))