fix(chat): Improve command parsing to handle paths starting with slash (#945)

Fixes an issue where pasting error messages or file paths that start
with a slash (/) would be incorrectly interpreted as commands. This
change improves the command parser to better distinguish between actual
commands and text that happens to start with a slash character.

Closes #894

Author: kkashilk

crates/q_cli/src/cli/chat/command.rs

@@ -313,7 +313,11 @@ impl Command {
                         },
                     }
                 },
-                _ => return Err(format!("Unknown command: {}", input)),
+                _ => {
+                    return Ok(Self::Ask {
+                        prompt: input.to_string(),
+                    });
+                },
             });
         }