feat(ui): module-detail bottom sheet on tap

Tapping a module card on the Modules page slides up a detail
sheet showing the full manifest data: directory path
(monospaced + selectable), every capability with version, and
every declared permission with a semantic icon (net = globe,
fs.read = folder, fs.write = edit, env = terminal, hub =
shield).

Empty permission list shows "(none — pure-computation module)"
explicitly — the operator should see *why* a module needed
zero perms, not be left guessing.

Backed by HubAdmin.ModuleInfo. New widget FaiModuleSheet with a
small drag-handle, FutureBuilder for the load state, error
surfacing if the RPC fails.

Bumps fai_studio 0.5.0 -> 0.6.0.

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

lib/data/hub.dart

@@ -76,6 +76,20 @@ class HubService {
       ..sort((a, b) => a.name.compareTo(b.name));
   }
 
+  /// Fully-detailed manifest for one installed module.
+  Future<ModuleDetail> moduleInfo(String name) async {
+    final r = await _client.moduleInfo(name);
+    return ModuleDetail(
+      name: r.name,
+      version: r.version,
+      capabilities: r.provides
+          .map((c) => '${c.namespace}.${c.name}@${c.versionReq}')
+          .toList(),
+      permissions: r.permissions,
+      directory: r.directory,
+    );
+  }
+
   Future<List<AuditEvent>> recentEvents({
     int limit = 50,
     List<String> types = const [],
@@ -216,6 +230,22 @@ class ModuleSummary {
   });
 }
 
+class ModuleDetail {
+  final String name;
+  final String version;
+  final List<String> capabilities;
+  final List<String> permissions;
+  final String directory;
+
+  const ModuleDetail({
+    required this.name,
+    required this.version,
+    required this.capabilities,
+    required this.permissions,
+    required this.directory,
+  });
+}
+
 class AuditEvent {
   final String eventId;
   final DateTime timestamp;