Feat v0.5.0 realtime dialog (#30)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/sandbox/runner.go

@@ -33,6 +33,7 @@ import (
 
 	starlarkjson "go.starlark.net/lib/json"
 
+	"switchboard-core/events"
 	"switchboard-core/models"
 	"switchboard-core/store"
 )
@@ -62,6 +63,7 @@ type Runner struct {
 	db              *sql.DB              // nil = db module unavailable
 	dbPostgres      bool                 // true = use $N placeholders; false = use ?
 	allowPrivateIPs bool                 // v0.38.5: disable SSRF private IP check
+	bus             *events.Bus          // v0.5.0: event bus for realtime module
 }
 
 // NewRunner creates a runner with the given sandbox and dependencies.
@@ -97,6 +99,11 @@ func (r *Runner) SetPackagesDir(dir string) {
 	r.packagesDir = dir
 }
 
+// SetBus attaches the event bus for the realtime module (v0.5.0).
+func (r *Runner) SetBus(bus *events.Bus) {
+	r.bus = bus
+}
+
 // SetAllowPrivateIPs disables the SSRF check that blocks connections to
 // private/loopback IPs. For self-hosted environments where extensions
 // reach internal services. Controlled by EXT_ALLOW_PRIVATE_IPS env var.
@@ -327,6 +334,11 @@ func (r *Runner) buildModulesWithLibCtx(ctx context.Context, packageID string, m
 			if r.connResolver != nil && rc != nil && rc.UserID != "" {
 				modules["connections"] = BuildConnectionsModule(ctx, r.connResolver, rc.UserID)
 			}
+
+		case models.ExtPermRealtimePublish:
+			if r.bus != nil {
+				modules["realtime"] = BuildRealtimeModule(ctx, r.bus, packageID)
+			}
 		}
 	}