fix(input): return a bool|string|string[]|null enum from get_option

`InputInterface::get_option` returned `PhpMixed`, so the negation branch
of `Input::get_option` reproduced PHP's `return !$value;` as
`!value.as_bool().unwrap_or(false)`, which inverts the result for a
string value instead of leaving it `false`. It now returns
`InputOptionValue`, whose `to_bool` is PHP's truthiness cast.

The narrowing also removes the `Vec<PhpMixed>` element handling the
commands carried for array options: `as_array` hands back `&[String]`,
so the `filter_map(|v| v.as_string())` chains at eight call sites
collapse. Its other accessors keep `PhpMixed`'s names and meanings
(`is_null`, `as_bool`, `as_string`, `to_bool`), and
`From<InputOptionValue> for PhpMixed` covers the callers that feed the
value back into an `IndexMap<String, PhpMixed>` or a `PhpMixed`
parameter.

`Input` keeps its parsed options and `InputOption` its defaults as
`PhpMixed`, so `Input::get_option` is where the narrowing happens and
where a value outside the domain panics.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

1 files changed, 3 insertions, 7 deletions

diff --git a/crates/shirabe/src/command/reinstall_command.rs b/crates/shirabe/src/command/reinstall_command.rs
index 010d2b5d..43978191 100644
--- a/crates/shirabe/src/command/reinstall_command.rs
+++ b/crates/shirabe/src/command/reinstall_command.rs
@@ -91,7 +91,7 @@ impl Command for ReinstallCommand {
         let mut package_names_to_reinstall: Vec<String> = vec![];
 
         let type_option = input.borrow().get_option("type")?;
-        let type_count = type_option.as_list().map_or(0, |l| l.len());
+        let type_count = type_option.as_array().map_or(0, <[String]>::len);
         let packages_arg = input.borrow().get_argument("packages")?;
         let packages_count = packages_arg.as_list().map_or(0, |l| l.len());
 
@@ -104,12 +104,8 @@ impl Command for ReinstallCommand {
                 .into());
             }
             let filter_types: Vec<String> = type_option
-                .as_list()
-                .map(|l| {
-                    l.iter()
-                        .filter_map(|v| v.as_string().map(|s| s.to_string()))
-                        .collect()
-                })
+                .as_array()
+                .map(<[String]>::to_vec)
                 .unwrap_or_default();
             for package in local_repo.get_canonical_packages()? {
                 if filter_types.contains(&package.get_type()) {