feat(core): add built-in system provider

crates/owlry-core/src/providers/mod.rs

@@ -2,6 +2,7 @@
 mod application;
 mod command;
 pub(crate) mod calculator;
+pub(crate) mod system;
 
 // Native plugin bridge
 pub mod native_provider;

crates/owlry-core/src/providers/system.rs

@@ -0,0 +1,148 @@
+use super::{LaunchItem, Provider, ProviderType};
+
+/// Built-in system provider. Returns a fixed set of power and session management actions.
+///
+/// This is a static provider — items are populated in `new()` and `refresh()` is a no-op.
+pub(crate) struct SystemProvider {
+    items: Vec<LaunchItem>,
+}
+
+impl SystemProvider {
+    pub fn new() -> Self {
+        let commands: &[(&str, &str, &str, &str, &str)] = &[
+            (
+                "shutdown",
+                "Shutdown",
+                "Power off the system",
+                "system-shutdown",
+                "systemctl poweroff",
+            ),
+            (
+                "reboot",
+                "Reboot",
+                "Restart the system",
+                "system-reboot",
+                "systemctl reboot",
+            ),
+            (
+                "reboot-bios",
+                "Reboot to BIOS",
+                "Restart into UEFI/BIOS setup",
+                "system-reboot",
+                "systemctl reboot --firmware-setup",
+            ),
+            (
+                "suspend",
+                "Suspend",
+                "Suspend to RAM",
+                "system-suspend",
+                "systemctl suspend",
+            ),
+            (
+                "hibernate",
+                "Hibernate",
+                "Suspend to disk",
+                "system-suspend-hibernate",
+                "systemctl hibernate",
+            ),
+            (
+                "lock",
+                "Lock Screen",
+                "Lock the session",
+                "system-lock-screen",
+                "loginctl lock-session",
+            ),
+            (
+                "logout",
+                "Log Out",
+                "End the current session",
+                "system-log-out",
+                "loginctl terminate-session self",
+            ),
+        ];
+
+        let items = commands
+            .iter()
+            .map(|(action_id, name, description, icon, command)| LaunchItem {
+                id: format!("sys:{}", action_id),
+                name: name.to_string(),
+                description: Some(description.to_string()),
+                icon: Some(icon.to_string()),
+                provider: ProviderType::Plugin("sys".into()),
+                command: command.to_string(),
+                terminal: false,
+                tags: vec!["system".into()],
+            })
+            .collect();
+
+        Self { items }
+    }
+}
+
+impl Provider for SystemProvider {
+    fn name(&self) -> &str {
+        "System"
+    }
+
+    fn provider_type(&self) -> ProviderType {
+        ProviderType::Plugin("sys".into())
+    }
+
+    fn refresh(&mut self) {
+        // Static provider — no-op
+    }
+
+    fn items(&self) -> &[LaunchItem] {
+        &self.items
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn has_seven_actions() {
+        let provider = SystemProvider::new();
+        assert_eq!(provider.items().len(), 7);
+    }
+
+    #[test]
+    fn contains_expected_action_names() {
+        let provider = SystemProvider::new();
+        let names: Vec<&str> = provider.items().iter().map(|i| i.name.as_str()).collect();
+        assert!(names.contains(&"Shutdown"));
+        assert!(names.contains(&"Reboot"));
+        assert!(names.contains(&"Lock Screen"));
+        assert!(names.contains(&"Log Out"));
+    }
+
+    #[test]
+    fn provider_type_is_sys_plugin() {
+        let provider = SystemProvider::new();
+        assert_eq!(provider.provider_type(), ProviderType::Plugin("sys".into()));
+    }
+
+    #[test]
+    fn shutdown_command_is_correct() {
+        let provider = SystemProvider::new();
+        let shutdown = provider
+            .items()
+            .iter()
+            .find(|i| i.name == "Shutdown")
+            .expect("Shutdown item must exist");
+        assert_eq!(shutdown.command, "systemctl poweroff");
+    }
+
+    #[test]
+    fn all_items_have_system_tag() {
+        let provider = SystemProvider::new();
+        for item in provider.items() {
+            assert!(
+                item.tags.contains(&"system".to_string()),
+                "item '{}' is missing 'system' tag",
+                item.name
+            );
+        }
+    }
+}