feat: editor project chip wiring (multi-project stage 2 host side)

FlowsPage passes the active workspace to the editor and switches the
workspace when the operator accepts a file-wins mismatch. Rebuilds the
chip live on workspace change. Editor package bumped to 0.22.0.

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

CHANGELOG.md

@@ -5,6 +5,22 @@ version + `kStudioVersion` in `lib/main.dart` stay in lockstep.
 
 ## Unreleased
 
+### Added (multi-project, stages ① + ②)
+
+- **Workspace switcher.** The Audit and Approvals AppBars carry a
+  workspace control listing the hub's project registry (colour dot per
+  project, a shield for `protected`, an honesty tooltip). "All projects"
+  stays reachable — a filter, not a jail. The selection is persisted and
+  shared across pages; it re-scopes the audit list AND live stream
+  hub-side, scopes approvals (pending + history), and drives the sidebar
+  approval badge. Runs launched from the editor are stamped with the
+  active workspace — unless the flow file declares its own `project:`,
+  in which case the file wins (CLI semantics).
+- **Editor project chip + file-wins guard.** A flow file's own
+  `project:` shows as a chip; on mismatch with the active workspace an
+  amber pill offers a one-click switch (the file still wins for the run).
+  Backed by editor package 0.22.0.
+
 ### Fixed (usertest 2026-07-10 findings)
 
 - **Approval prompts localize.** An approval whose flow step gave no

lib/pages/flows.dart

@@ -16,6 +16,7 @@ import 'package:flutter/material.dart';
 import '../data/error_presentation.dart';
 import '../data/flow_run_driver.dart';
 import '../data/hub.dart';
+import '../data/workspace.dart';
 import '../l10n/app_localizations.dart';
 
 class FlowsPage extends StatefulWidget {
@@ -149,20 +150,30 @@ class _FlowsPageState extends State<FlowsPage> {
     final editorLocale = locale.languageCode == 'de'
         ? FlowEditorLocale.de
         : FlowEditorLocale.en;
-    return FutureBuilder<List<String>>(
-      future: _capabilities,
-      builder: (context, snap) {
-        final caps = snap.data ?? const <String>[];
-        return FlowEditorPage(
-          initialFlowName: widget.initialFlowName,
-          locale: editorLocale,
-          runDriver: _driver,
-          availableCapabilities: caps,
-          storeCapabilities: _storeCaps,
-          onInstallCapability: _onInstallCapability,
-          onAddModuleSource: _onAddModuleSource,
-        );
-      },
+    // Rebuild the editor's project chip when the workspace changes,
+    // so a mismatch banner appears/clears live.
+    return ListenableBuilder(
+      listenable: Workspace.instance,
+      builder: (context, _) => FutureBuilder<List<String>>(
+        future: _capabilities,
+        builder: (context, snap) {
+          final caps = snap.data ?? const <String>[];
+          return FlowEditorPage(
+            initialFlowName: widget.initialFlowName,
+            locale: editorLocale,
+            runDriver: _driver,
+            availableCapabilities: caps,
+            storeCapabilities: _storeCaps,
+            onInstallCapability: _onInstallCapability,
+            onAddModuleSource: _onAddModuleSource,
+            activeProject: Workspace.instance.activeSlug,
+            // The file wins for the run; accepting the switch only
+            // aligns the workspace view to the file's project.
+            onSwitchToFileProject: (slug) =>
+                Workspace.instance.setActive(slug),
+          );
+        },
+      ),
     );
   }
 }

pubspec.lock

@@ -46,7 +46,7 @@ packages:
       path: "../fai_chain_studio_flow_editor"
       relative: true
     source: path
-    version: "0.21.2"
+    version: "0.22.0"
   characters:
     dependency: transitive
     description: