Initial commit: Luminary AI Gateway

OpenAI-compatible AI gateway with Vue admin UI, multi-provider egress,
ingress key governance, monitoring, and security controls.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/prediction/hub.go

@@ -0,0 +1,57 @@
+package prediction
+
+import (
+	"sync"
+)
+
+type Event struct {
+	Status  string         `json:"status"`
+	Logs    string         `json:"logs,omitempty"`
+	Metrics map[string]any `json:"metrics,omitempty"`
+	Output  any            `json:"output,omitempty"`
+	Error   string         `json:"error,omitempty"`
+	Done    bool           `json:"-"`
+}
+
+type Hub struct {
+	mu   sync.RWMutex
+	subs map[string]map[chan Event]struct{}
+}
+
+func NewHub() *Hub {
+	return &Hub{subs: make(map[string]map[chan Event]struct{})}
+}
+
+func (h *Hub) Subscribe(predictionID string) chan Event {
+	ch := make(chan Event, 16)
+	h.mu.Lock()
+	if h.subs[predictionID] == nil {
+		h.subs[predictionID] = make(map[chan Event]struct{})
+	}
+	h.subs[predictionID][ch] = struct{}{}
+	h.mu.Unlock()
+	return ch
+}
+
+func (h *Hub) Unsubscribe(predictionID string, ch chan Event) {
+	h.mu.Lock()
+	if m := h.subs[predictionID]; m != nil {
+		delete(m, ch)
+		if len(m) == 0 {
+			delete(h.subs, predictionID)
+		}
+	}
+	h.mu.Unlock()
+	close(ch)
+}
+
+func (h *Hub) Publish(predictionID string, ev Event) {
+	h.mu.RLock()
+	defer h.mu.RUnlock()
+	for ch := range h.subs[predictionID] {
+		select {
+		case ch <- ev:
+		default:
+		}
+	}
+}