fix(status): source column reflects real traffic + theme-aware tray menu

- api/status sources now carry recent_ok/recent_err (last 300s real gateway
  requests via Stats.SourceRecent) so a source actually serving traffic is
  never shown as down just because probe /models got rate-limited
- WebUI source status column repaints every 5s (no more frozen-at-first-
  render) with a manual refresh button; shows success rate + probe + cooldown
- tray menu status rows were enabled:false (GTK fixed light-grey, invisible
  on light themes) — now enabled with no-op click and nativeTheme listener
  rebuilds the menu on dark/light switches
- ignore local ops scripts (scripts/, machine-specific)

internal/gateway/stats.go

@@ -26,7 +26,7 @@ type Req struct {
 	Compl int64 `json:"completion_tokens"`
 	// LatMs total handling time ms
 	LatMs int64 `json:"latency_ms"`
-	OK    bool   `json:"ok"`
+	OK    bool  `json:"ok"`
 	// Status http status code
 	Status int `json:"status"`
 	// Err short error message
@@ -445,6 +445,33 @@ func (s *Stats) AuditRecords(from, to int64, key string) []Req {
 	return out
 }
 
+// SourceRecent counts real gateway requests per source within the last
+// window (unix seconds). It reads only the in-memory ring, so it is cheap and
+// reflects live traffic — used by /api/status so the source status column is
+// driven by what actually happens, not just a probe.
+func (s *Stats) SourceRecent(windowSec int64) map[string][2]int64 {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	cut := time.Now().Unix() - windowSec
+	out := map[string][2]int64{}
+	for _, r := range s.recs {
+		if r.Time/1000 < cut {
+			continue
+		}
+		if r.Source == "" {
+			continue
+		}
+		v := out[r.Source]
+		if r.OK {
+			v[0]++
+		} else {
+			v[1]++
+		}
+		out[r.Source] = v
+	}
+	return out
+}
+
 // Snapshot returns the whole dashboard payload; when key != "" the records
 // and aggregate views are restricted to that gateway key.
 func (s *Stats) Snapshot(limit int, key string) map[string]interface{} {
@@ -506,4 +533,4 @@ func (s *Stats) Snapshot(limit int, key string) map[string]interface{} {
 		"by_status": bs,
 		"records":   append([]Req(nil), recs...),
 	}
-}
+}