Treat zsh -lc like bash -lc (#5411)

Without proper `zsh -lc` parsing, we lose some things like proper
command parsing, turn diff tracking, safe command checks, and other
things we expect from raw or `bash -lc` commands.

codex-rs/core/src/command_safety/is_dangerous_command.rs

@@ -1,4 +1,4 @@
-use crate::bash::parse_bash_lc_plain_commands;
+use crate::bash::parse_shell_lc_plain_commands;
 
 pub fn command_might_be_dangerous(command: &[String]) -> bool {
     if is_dangerous_to_call_with_exec(command) {
@@ -6,7 +6,7 @@ pub fn command_might_be_dangerous(command: &[String]) -> bool {
     }
 
     // Support `bash -lc "<script>"` where the any part of the script might contain a dangerous command.
-    if let Some(all_commands) = parse_bash_lc_plain_commands(command)
+    if let Some(all_commands) = parse_shell_lc_plain_commands(command)
         && all_commands
             .iter()
             .any(|cmd| is_dangerous_to_call_with_exec(cmd))
@@ -57,6 +57,15 @@ mod tests {
         ])));
     }
 
+    #[test]
+    fn zsh_git_reset_is_dangerous() {
+        assert!(command_might_be_dangerous(&vec_str(&[
+            "zsh",
+            "-lc",
+            "git reset --hard"
+        ])));
+    }
+
     #[test]
     fn git_status_is_not_dangerous() {
         assert!(!command_might_be_dangerous(&vec_str(&["git", "status"])));

codex-rs/core/src/command_safety/is_safe_command.rs

@@ -1,4 +1,4 @@
-use crate::bash::parse_bash_lc_plain_commands;
+use crate::bash::parse_shell_lc_plain_commands;
 
 pub fn is_known_safe_command(command: &[String]) -> bool {
     let command: Vec<String> = command
@@ -29,7 +29,7 @@ pub fn is_known_safe_command(command: &[String]) -> bool {
     // introduce side effects ( "&&", "||", ";", and "|" ). If every
     // individual command in the script is itself a known‑safe command, then
     // the composite expression is considered safe.
-    if let Some(all_commands) = parse_bash_lc_plain_commands(&command)
+    if let Some(all_commands) = parse_shell_lc_plain_commands(&command)
         && !all_commands.is_empty()
         && all_commands
             .iter()
@@ -201,6 +201,11 @@ mod tests {
         ])));
     }
 
+    #[test]
+    fn zsh_lc_safe_command_sequence() {
+        assert!(is_known_safe_command(&vec_str(&["zsh", "-lc", "ls"])));
+    }
+
     #[test]
     fn unknown_or_partial() {
         assert!(!is_safe_to_call_with_exec(&vec_str(&["foo"])));