feat(cli): flow-debug run-method|run-value-change|replay

New top-level command group for the Flow Debugger (design 2026-09-05 §7.1). run-method /
run-value-change post the FlowDebugRun* management commands with a 2-minute client wait;
replay posts FlowDebugReplayCommand. A table projection unwraps the FlowDebugRunResult
envelope to one row per step (occurred | kind | lane | target | durationMs | status |
error) using the Commons FlowStepProjector's kind/lane resolution, with a trailing note
row for an incomplete run (error code verbatim, e.g. STANDBY_NODE) or a truncated event
list. --params must be a JSON object (INVALID_PARAMS otherwise). README section added;
command-tree test bumped to 18 groups.

Claude-Session: https://claude.ai/code/session_01GSLkkHKz9JrAtmJjmQK3cP

tests/ZB.MOM.WW.ScadaBridge.CLI.Tests/CommandTreeTests.cs

@@ -41,6 +41,7 @@ public class CommandTreeTests
         ApiMethodCommands.Build(Url, Format, Username, Password),
         BundleCommands.Build(Url, Format, Username, Password),
         CachedCallCommands.Build(Url, Format, Username, Password),
+        FlowDebugCommands.Build(Url, Format, Username, Password),
     };
 
     private static IEnumerable<Command> LeafCommands(Command command)
@@ -61,11 +62,11 @@ public class CommandTreeTests
     {
         var groups = AllCommandGroups().ToList();
         // CLI-022: bump this count whenever a new top-level command group is
-        // registered in Program.cs. Current registered groups (17):
+        // registered in Program.cs. Current registered groups (18):
         //   template, instance, site, deploy, data-connection, external-system,
         //   notification, security, audit-config, audit, health, debug,
-        //   shared-script, db-connection, api-method, bundle, cached-call.
-        Assert.Equal(17, groups.Count);
+        //   shared-script, db-connection, api-method, bundle, cached-call, flow-debug.
+        Assert.Equal(18, groups.Count);
         Assert.All(groups, g => Assert.False(string.IsNullOrWhiteSpace(g.Name)));
     }