fix(desktop): source shell rc before launching CLI (#332)

Fixes #326

## Summary
- source the user's bash or zsh rc before launching the bundled CLI from
Tauri
- use `-l -i -c` for zsh so shell-managed Node runtimes are available in
launcher-started sessions
- fixes the reproduced Linux launcher case where the app exits with `CLI
exited early: exit status: 127` while terminal launches work

## Validation
- reproduced the failure with the released Tauri `v0.14.0` Linux binary
- verified the patched binary succeeds under the same launcher-like
environment
- ran `cargo build` on the dev-based PR branch

packages/tauri-app/src-tauri/src/cli_manager.rs

@@ -1288,8 +1288,11 @@ fn build_shell_args(shell: &str, command: &str) -> Vec<String> {
         .unwrap_or("")
         .to_lowercase();
 
-    let _ = shell_name;
-    vec!["-l".into(), "-c".into(), command.into()]
+    if shell_name.contains("zsh") || shell_name.contains("bash") {
+        vec!["-i".into(), "-l".into(), "-c".into(), command.into()]
+    } else {
+        vec!["-l".into(), "-c".into(), command.into()]
+    }
 }
 
 fn first_existing(paths: Vec<Option<PathBuf>>) -> Option<String> {