perf: quick wins for pipeline, jobs, httpapi and web ops

- CDN snapshot: batch merge после parallel fetch, без race на persist
- ListRevisionPrefixes: лёгкая проверка revision вместо GetRevision
- Jobs: timeout/cancel context для pipeline и deploy
- HTTP server timeouts; кэш birdc для GET /peers
- ListModules: batch DoH profiles одним запросом
- Web: tab-scoped load на /operations, debounce job search, меньше over-fetch на dashboard

Co-authored-by: Cursor <[email protected]>

internal/birdfmt/protocols.go

@@ -50,3 +50,48 @@ func CountEstablishedBGPSessions(showProtocolsOutput string) int {
 	}
 	return n
 }
+
+// ParseBGPProtocolStates parses `birdc show protocols all` summary rows into protocol_name -> state.
+func ParseBGPProtocolStates(output string) map[string]string {
+	out := make(map[string]string)
+	for _, raw := range strings.Split(output, "\n") {
+		line := strings.TrimSpace(raw)
+		if line == "" {
+			continue
+		}
+		low := strings.ToLower(line)
+		if strings.HasPrefix(low, "bird ") || strings.HasPrefix(low, "name ") || strings.HasPrefix(low, "table ") {
+			continue
+		}
+		fields := strings.Fields(line)
+		if len(fields) < 4 {
+			continue
+		}
+		if !strings.EqualFold(fields[1], "BGP") {
+			continue
+		}
+		state := extractBGPSessionStateLine(line)
+		if state == "" {
+			state = fields[3]
+		}
+		out[fields[0]] = state
+	}
+	return out
+}
+
+func extractBGPSessionStateLine(line string) string {
+	known := []string{
+		"Established",
+		"Idle",
+		"Connect",
+		"Active",
+		"OpenSent",
+		"OpenConfirm",
+	}
+	for _, st := range known {
+		if strings.Contains(line, st) {
+			return st
+		}
+	}
+	return ""
+}