refactor(hive-c0re): drop the request_init_config tool and InitConfig approval

swarm-controller's `InitAgentConfigRepo` node already covers config-repo
creation, so this deletes a duplicate rather than a capability; old
`init_config` rows are skipped by `collect_lenient` with no migration, by
operator decision.

Refs #4398

frontend/packages/dashboard/src/tabs.js

@@ -81,12 +81,7 @@ window.marked = marked;
     for (const a of approvals) {
       if (seenApprovals.has(a.id)) continue;
       seenApprovals.add(a.id);
-      const verb =
-        a.kind === "spawn"
-          ? "spawn approval"
-          : a.kind === "init_config"
-            ? "config-init approval"
-            : "config commit";
+      const verb = a.kind === "spawn" ? "spawn approval" : "config commit";
       NOTIF.show(
         "◆ approval #" + a.id,
         `${verb} for ${a.agent}`,