fix(flow-debugger): method pane takes structured parameters via ParameterValueForm + raw-JSON escape hatch (#37)

The Run-inbound-API-method pane rendered one text box per top-level schema
field and coerced the text on the page; an array/object field went through
JsonNode.Parse and, on failure, was SENT AS A STRING, while an empty box was
silently dropped. A required array-of-object parameter (MesMoveOut WorkOrders)
could not be entered at all — QA runs reached the site with "WorkOrders":[].

- The method pane now renders the same shared ParameterValueForm the script
  pane uses (typed inputs, nested groups, add/remove list item editors,
  $ref:lib: resolution, inline validation), keyed on the method id so a change
  of method remounts it. The page keeps ONE value tree and BuildParameters()
  serializes it as-is; the flat _inputs / Coerce() / SetInput path is deleted.
- Form | Raw JSON toggle: raw mode is a Monaco json editor for the whole
  request body, given the method's root schema for completion, parsed and
  schema-validated (InboundApiSchema.Validate) on every edit with the error
  inline. Entering raw mode seeds the editor from the tree; leaving it
  re-mounts the form over the last valid tree.
- Run is disabled while the form or the raw document is invalid (a required
  field left empty disables Run before the first keystroke).
- localStorage per-method entry stores the value tree; on restore it is
  validated against the schema and dropped if invalid, which also retires the
  pre-#37 flat string-per-field entries.
- ParameterValueForm.ToJsonSchema / JsonElementToObject made internal static
  for page reuse.
- Tests: 7 new bUnit tests (WorkOrders array-of-object round-trip to the
  RunMethodAsync payload, required list-item gating, invalid raw JSON blocks
  Run + shows parse/schema/non-object errors, valid raw JSON sent verbatim and
  survives the switch back to the form, method switch resets, persisted tree
  restored, legacy flat entry dropped); existing method-pane tests moved to
  the form's #param-<field> ids and fill the required field before Run.
  Playwright smoke selector moved to #param-Text.
- Docs: design doc, Component-CentralUI.md entry-points bullet, CLAUDE.md.

CentralUI.Tests 1425/1425 green; Playwright project builds.

Claude-Session: https://claude.ai/code/session_01XPsuy2ZZ5Gbyfpt8PrK5BV

tests/ZB.MOM.WW.ScadaBridge.CentralUI.PlaywrightTests/Deployment/FlowDebuggerTests.cs

@@ -47,9 +47,10 @@ public class FlowDebuggerTests : IClassFixture<FlowDebuggerFixture>
         await SelectMethodAsync(page);
 
         // The prediction (a Roslyn walk + the route-target resolve) finished: the state chip flips
-        // to Predicted and the typed input form for the method's parameter appears.
+        // to Predicted and the method's ParameterValueForm (#37: the same typed form the script
+        // pane uses, inputs addressed by field id) appears.
         await Assertions.Expect(page.Locator("[data-test='flow-state']")).ToHaveTextAsync("Predicted", new() { Timeout = 15_000 });
-        var input = page.Locator("input[data-test='flow-input-Text']");
+        var input = page.Locator("#param-Text");
         await Assertions.Expect(input).ToBeVisibleAsync();
 
         // @bind commits on change (blur), so commit the value as its own circuit message before Run.