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/pages/modules.dart

@@ -71,7 +71,17 @@ class _ModulesPageState extends State<ModulesPage> {
             padding: const EdgeInsets.all(FaiSpace.xl),
             itemCount: modules.length,
             separatorBuilder: (_, _) => const SizedBox(height: FaiSpace.md),
-            itemBuilder: (context, i) => _ModuleCard(module: modules[i]),
+            itemBuilder: (context, i) {
+              final m = modules[i];
+              return GestureDetector(
+                onTap: () => FaiModuleSheet.show(context, m.name),
+                behavior: HitTestBehavior.opaque,
+                child: MouseRegion(
+                  cursor: SystemMouseCursors.click,
+                  child: _ModuleCard(module: m),
+                ),
+              );
+            },
           );
         },
       ),