feat(swarm): add swarm self-improvement loop infrastructure

Adds complete k8s manifests, ArgoCD app, and Terraform namespace
resources for the Neuron swarm self-improvement loop system.

Each variant (alpha, beta, gamma) gets its own isolated namespace,
PVC, MCP/REST deployments, ExternalSecrets from Vault, RBAC for CI,
and a SQLite clone Job template for session startup.

servers/legion/neuron-technologies.tf

@@ -50,3 +50,43 @@ resource "kubernetes_namespace" "neuron_tim" {
     }
   }
 }
+
+# Swarm variant namespaces — isolated execution environments for swarm self-improvement loops
+resource "kubernetes_namespace" "swarm_alpha" {
+  metadata {
+    name = "swarm-alpha"
+    labels = {
+      managed-by  = "terraform"
+      tier        = "swarm"
+      environment = "swarm"
+      app         = "neuron-technologies"
+      variant     = "alpha"
+    }
+  }
+}
+
+resource "kubernetes_namespace" "swarm_beta" {
+  metadata {
+    name = "swarm-beta"
+    labels = {
+      managed-by  = "terraform"
+      tier        = "swarm"
+      environment = "swarm"
+      app         = "neuron-technologies"
+      variant     = "beta"
+    }
+  }
+}
+
+resource "kubernetes_namespace" "swarm_gamma" {
+  metadata {
+    name = "swarm-gamma"
+    labels = {
+      managed-by  = "terraform"
+      tier        = "swarm"
+      environment = "swarm"
+      app         = "neuron-technologies"
+      variant     = "gamma"
+    }
+  }
+}