feat(command): wire suggested values into every command definition

Ports the per-command completion metadata that PHP passes as the
suggestedValues constructor argument, resolving all TODO(cli-completion)
markers:

- CompletionTrait providers on 18 argument/option sites (installed/root/
  available package names, package types, prefer-install)
- static value lists (--format on show/outdated/search/fund/licenses/
  check-platform-reqs, archive's FORMATS, audit --ignore-severity,
  update --bump-after-update, repository's action list)
- command-specific closures: ConfigCommand::suggest_setting_keys,
  ShowCommand::suggest_package_based_on_mode, RepositoryCommand's
  suggest_repo_names/suggest_type_for_add, exec/run-script inline
  closures (downcast from the this argument, as the closures are bound
  to their concrete command in PHP)
- GlobalCommand::complete, delegating completion to the wrapped
  subcommand through CompletionInput::from_string
- a complete() override on every Composer command forwarding to
  base_command_complete (BaseCommand inheritance restoration)

Also fixes CompleteCommand to call merge_application_definition(true) as
PHP's default-argument call does; with false the application-level
"command" argument was missing from the bound definition, shifting every
argument-position detection by one.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1 files changed, 11 insertions, 2 deletions

diff --git a/crates/shirabe/src/command/prohibits_command.rs b/crates/shirabe/src/command/prohibits_command.rs
index 23b693f3..fb37b7e7 100644
--- a/crates/shirabe/src/command/prohibits_command.rs
+++ b/crates/shirabe/src/command/prohibits_command.rs
@@ -1,6 +1,7 @@
 //! ref: composer/src/Composer/Command/ProhibitsCommand.php
 
 use crate::command::BaseDependencyCommand;
+use crate::command::CompletionTrait;
 use crate::command::base_command::base_command_initialize;
 use crate::command::{BaseCommand, BaseCommandData};
 use crate::console::input::InputArgument;
@@ -47,16 +48,16 @@ impl BaseDependencyCommand for ProhibitsCommand {
 
 impl Command for ProhibitsCommand {
     fn configure(&self) -> anyhow::Result<()> {
-        // TODO(cli-completion): suggest_available_package() for `package` argument
         self.set_name("prohibits")?;
         self.set_aliases(vec!["why-not".to_string()])?;
         self.set_description("Shows which packages prevent the given package from being installed");
         self.set_definition(&[
-            InputArgument::new(
+            InputArgument::new5(
                 <Self as BaseDependencyCommand>::ARGUMENT_PACKAGE,
                 Some(InputArgument::REQUIRED),
                 "Package to inspect",
                 None,
+                self.suggest_available_package(99),
             )
             .unwrap()
             .into(),
@@ -120,6 +121,14 @@ impl Command for ProhibitsCommand {
         base_command_initialize(self, input, output)
     }
 
+    fn complete(
+        &self,
+        input: &shirabe_external_packages::symfony::console::completion::completion_input::CompletionInput,
+        suggestions: &mut shirabe_external_packages::symfony::console::completion::completion_suggestions::CompletionSuggestions,
+    ) -> anyhow::Result<()> {
+        crate::command::base_command::base_command_complete(self, input, suggestions)
+    }
+
     shirabe_external_packages::delegate_command_trait_impls_to_inner!(
         base_command_data,
         "Composer\\Command\\ProhibitsCommand"