feat(init): supervise servers+session progs: restart on death, same endpoint, backoff 0/1/5/30s then give up, restarts_clients cascade; release grants/spawn at stop (stale-slot safe); storage death fatal; init output via printer thread (never blocks on log); terminal Ctrl+C via CONTROL-badged copy, latest wins; flaky test server + spawntest restart/backoff check

crates/apps/spawntest/Cargo.toml

@@ -11,4 +11,5 @@ bench = false
 [dependencies]
 types = { workspace = true }
 manifest = { workspace = true }
+flaky = { path = "../flaky" }
 libkos = { workspace = true }