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

hive-c0re/src/lifecycle/host_config.rs

@@ -106,11 +106,10 @@ fn config_bind_source(name: &str) -> PathBuf {
 ///   hive-c0re still reads it directly on the host (`stats::hive_stats`),
 ///   which needs no bind mount into the parent.
 ///
-/// ⚠️ The seeding done at `InitConfig` approval is **not** affected by the
-/// `config` flag and must not be read as a reason to widen it: that runs
-/// as hive-c0re against the host path (see `actions.rs`, which seeds the
-/// repo and wires its forge remote inline), and `read_only` on a bind
-/// constrains writers *inside* the container only.
+/// ⚠️ The config-repo seeding hive-c0re does at spawn is **not** affected by
+/// the `config` flag and must not be read as a reason to widen it: that runs
+/// as hive-c0re against the host path (see `lifecycle::setup_proposed`), and
+/// `read_only` on a bind constrains writers *inside* the container only.
 fn bind_child_agent_dirs(child: &str, binds: &mut Vec<BindMount>) {
     let Ok(child) = hive_types::Ident::parse(child) else {
         tracing::warn!(%child, "skipping child bind: invalid agent name");