feat(readarr): trigger Readarr tasks and expose the command on the CLI

The task name is sent as the shared CommandBody, matching the Radarr, Sonarr, and Lidarr implementations. The response is returned verbatim and no app state is mutated.

src/cli/readarr/mod.rs

@@ -7,6 +7,8 @@ use list_command_handler::{ReadarrListCommand, ReadarrListCommandHandler};
 use tokio::sync::Mutex;
 
 use super::{CliCommandHandler, Command};
+use crate::models::readarr_models::ReadarrTaskName;
+use crate::network::readarr_network::ReadarrEvent;
 use crate::{app::App, network::NetworkTrait};
 
 mod get_command_handler;
@@ -28,6 +30,16 @@ pub enum ReadarrCommand {
     about = "Commands to list attributes from your Readarr instance"
   )]
   List(ReadarrListCommand),
+  #[command(about = "Start the specified Readarr task")]
+  StartTask {
+    #[arg(
+      long,
+      help = "The name of the task to trigger",
+      value_enum,
+      required = true
+    )]
+    task_name: ReadarrTaskName,
+  },
 }
 
 impl From<ReadarrCommand> for Command {
@@ -67,6 +79,13 @@ impl<'a, 'b> CliCommandHandler<'a, 'b, ReadarrCommand> for ReadarrCliHandler<'a,
           .handle()
           .await?
       }
+      ReadarrCommand::StartTask { task_name } => {
+        let resp = self
+          .network
+          .handle_network_event(ReadarrEvent::StartTask(task_name).into())
+          .await?;
+        serde_json::to_string_pretty(&resp)?
+      }
     };
 
     Ok(result)