Terminal tool improvements (#29924)

WIP

- On macOS/Linux, run the command in bash instead of the user's shell
- Try to prevent the agent from running commands that expect interaction

Release Notes:

- Agent Beta: Switched to using `bash` (if available) instead of the
user's shell when calling the terminal tool.
- Agent Beta: Prevented the agent from hanging when trying to run
interactive commands.

---------

Co-authored-by: WeetHet <stas.ale66@gmail.com>

crates/eval/src/examples/planets.rs

@@ -38,7 +38,7 @@ impl Example for Planets {
         for tool_use in response.tool_uses() {
             if tool_use.name == OpenTool.name() {
                 open_tool_uses += 1;
-            } else if tool_use.name == TerminalTool.name() {
+            } else if tool_use.name == TerminalTool::NAME {
                 terminal_tool_uses += 1;
             }
         }