feat(studio): per-field ports in flow editor + store-doc scroll fix

Picks up:
- fai_studio_flow_editor 0.9.0: per-field input + output
  ports rendered from ModuleInfo, i18n tooltips, four
  additional canvas patterns ported from jai_client.
- fai_client_sdk 0.18.0: regenerated ModuleField bindings
  for the schema_version 3 / per-field-description proto
  bump in fai/platform.

Wires StudioFlowRunDriver.moduleInfo so the editor can
fetch declared field info per step capability. The hub
maps schema_version 3 manifest fields (inputs/outputs
with description.en/de) through ModuleInfoResponse; this
patch wraps them back into the editor's ModuleSpec /
ModuleField vocabulary so the canvas paints them as
distinct anchors with hover tooltips.

ModuleDetail in hub.dart now carries the same inputs +
outputs lists (with ModuleFieldInfo type + i18n
description map), enabling other Studio surfaces — e.g.
the module-detail sheet — to render bilingual field docs
in a later pass.

Plus: store-doc nested-scroll fix. The module detail
panel's docs section sat inside its own 480px viewport
inside the outer sheet's SingleChildScrollView, producing
the double-scrollbar feel. Setting
physics: NeverScrollableScrollPhysics on the Markdown
widget and dropping the maxHeight lets the docs scroll
as part of the outer sheet — one scrollbar, predictable
mouse-wheel behaviour.

Bumps fai_studio to 0.56.0.

Signed-off-by: flemming-it <stefan.a.flemming@googlemail.com>

pubspec.lock

@@ -119,16 +119,16 @@ packages:
       path: "../fai_client_sdk_dart"
       relative: true
     source: path
-    version: "0.17.1"
+    version: "0.18.0"
   fai_studio_flow_editor:
     dependency: "direct main"
     description:
       path: "."
       ref: main
-      resolved-ref: "1f5601a461097c62140354fb0e9b9bdea598b89c"
+      resolved-ref: b1fe765468d83db97344440fcfd6848a09ec06c2
       url: "https://git.flemming.ai/fai/studio-flow-editor"
     source: git
-    version: "0.8.0"
+    version: "0.9.0"
   fake_async:
     dependency: transitive
     description: