feat: add internationalization support and new command-line tools

- Add locale support with English and Chinese translations
- Introduce new jv and jvv command-line tools
- Replace jvc.rs with improved command structure
- Add utility modules for language selection and markdown coloring
- Update configuration and dependencies

1 files changed, 14 insertions, 0 deletions

diff --git a/src/utils/lang_selector.rs b/src/utils/lang_selector.rs
new file mode 100644
index 0000000..c3603ea
--- /dev/null
+++ b/src/utils/lang_selector.rs
@@ -0,0 +1,14 @@
+pub fn current_locales() -> String {
+    if let Ok(lang) = std::env::var("APP_LANG") {
+        return lang;
+    }
+
+    if let Ok(lang) = std::env::var("LANG") {
+        if let Some(base_lang) = lang.split('.').next() {
+            return base_lang.replace('_', "-");
+        }
+        return lang;
+    }
+
+    "en".to_string()
+}