feat: alive UI wave, galaxy presence, spread and fleet enhancements

Dashboard ambient layer, comrade presence, Mission Deck and War Room, Emberwake supply chain, spread/docs publishing, fleet policy and modules API, CI docker mining, and refreshed USB pack.

server/internal/api/module_handler.go

@@ -0,0 +1,39 @@
+package api
+
+import (
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+)
+
+type ModuleHandler struct {
+	store *ModuleStore
+}
+
+func NewModuleHandler(store *ModuleStore) *ModuleHandler {
+	return &ModuleHandler{store: store}
+}
+
+// GetAgentModule serves signed module JSON to forged agents (X-Fleet-Secret).
+func (h *ModuleHandler) GetAgentModule(w http.ResponseWriter, r *http.Request) {
+	name := chi.URLParam(r, "name")
+	m, err := h.store.Get(name)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusNotFound)
+		return
+	}
+	writeJSON(w, m)
+}
+
+// ListModules lists available packs for the dashboard.
+func (h *ModuleHandler) ListModules(w http.ResponseWriter, r *http.Request) {
+	mods, err := h.store.List()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	if mods == nil {
+		mods = []ModuleManifest{}
+	}
+	writeJSON(w, mods)
+}