refactor: apply zero-unwrap policy and optimize locks in store.rs and handlers

linux-nvim/build.rs

@@ -15,10 +15,6 @@ fn main() {
         .and_then(|out| String::from_utf8(out.stdout).ok())
         .unwrap_or_else(|| "unknown".to_string());
 
-    let version = format!(
-        "{} ({})",
-        git_date.trim(),
-        git_hash.trim()
-    );
+    let version = format!("{} ({})", git_date.trim(), git_hash.trim());
     println!("cargo:rustc-env=APP_VERSION={}", version);
 }

linux-nvim/tests/integration_test.rs

@@ -1,3 +1,5 @@
+#![cfg(unix)]
+
 use serde_json::{json, Value};
 use std::io::{BufRead, BufReader, Read, Write};
 use std::process::{Command, Stdio};