feat(container): wire ProdContainerOrchestrator + BootReconciler into main

Step 6 of the rust-orchestrator migration. Construct the container
orchestrator once in main.rs, call load_manifests + adopt_existing
immediately after Config::load, log the adoption report, and spawn
BootReconciler::run_forever with the 30s default interval. Thread the
orchestrator through Server::new -> ApiHandler::new -> RpcHandler::new
so the reconciler and RPC layer share one instance.

Wire a tokio::sync::Notify through the SIGTERM/SIGINT shutdown path so
the reconciler exits cleanly alongside the server drain. Uses notify_one
so the signal stores a permit if the reconciler is mid reconcile_all
when the signal fires.

Delete the commented-out run_boot_reconciliation block in main.rs that
documented the prior bash-script approach being unsafe on unbundled
installs — the new reconciler is manifest-driven and only touches apps
present in /opt/archipelago/apps, fixing that concern.

cargo check -p archipelago clean (6 pre-existing dead-code warnings on
trait methods not yet exercised until Step 9 hot-swap). Container test
suite 43/44 pass; the one failure (container::image_versions::
test_parse_image_versions) is pre-existing and unrelated.

core/archipelago/src/api/handler/mod.rs

@@ -10,6 +10,7 @@ mod websocket;
 use crate::api::rpc::RpcHandler;
 use crate::blobs::BlobStore;
 use crate::config::Config;
+use crate::container::{ContainerOrchestrator, DevContainerOrchestrator};
 use crate::monitoring::MetricsStore;
 use crate::session::{self, SessionStore};
 use crate::state::StateManager;
@@ -54,6 +55,8 @@ impl ApiHandler {
         config: Config,
         state_manager: Arc<StateManager>,
         metrics_store: Arc<MetricsStore>,
+        orchestrator: Option<Arc<dyn ContainerOrchestrator>>,
+        dev_orchestrator: Option<Arc<DevContainerOrchestrator>>,
     ) -> Result<Self> {
         let session_store = SessionStore::new().await;
         let rpc_handler = Arc::new(
@@ -62,6 +65,8 @@ impl ApiHandler {
                 state_manager.clone(),
                 metrics_store.clone(),
                 session_store.clone(),
+                orchestrator,
+                dev_orchestrator,
             )
             .await?,
         );