[management] Store connected proxies in DB (#5472)

Co-authored-by: mlsmaycon <mlsmaycon@gmail.com>

management/internals/modules/reverseproxy/proxy/manager.go

@@ -0,0 +1,36 @@
+package proxy
+
+//go:generate go run github.com/golang/mock/mockgen -package proxy -destination=manager_mock.go -source=./manager.go -build_flags=-mod=mod
+
+import (
+	"context"
+	"time"
+
+	"github.com/netbirdio/netbird/shared/management/proto"
+)
+
+// Manager defines the interface for proxy operations
+type Manager interface {
+	Connect(ctx context.Context, proxyID, clusterAddress, ipAddress string) error
+	Disconnect(ctx context.Context, proxyID string) error
+	Heartbeat(ctx context.Context, proxyID string) error
+	GetActiveClusterAddresses(ctx context.Context) ([]string, error)
+	CleanupStale(ctx context.Context, inactivityDuration time.Duration) error
+}
+
+// OIDCValidationConfig contains the OIDC configuration needed for token validation.
+type OIDCValidationConfig struct {
+	Issuer             string
+	Audiences          []string
+	KeysLocation       string
+	MaxTokenAgeSeconds int64
+}
+
+// Controller is responsible for managing proxy clusters and routing service updates.
+type Controller interface {
+	SendServiceUpdateToCluster(ctx context.Context, accountID string, update *proto.ProxyMapping, clusterAddr string)
+	GetOIDCValidationConfig() OIDCValidationConfig
+	RegisterProxyToCluster(ctx context.Context, clusterAddr, proxyID string) error
+	UnregisterProxyFromCluster(ctx context.Context, clusterAddr, proxyID string) error
+	GetProxiesForCluster(clusterAddr string) []string
+}