Phase 2 WP-1–13+23: Template Engine CRUD, composition, overrides, locking, collision detection, acyclicity

- WP-23: ITemplateEngineRepository full EF Core implementation
- WP-1: Template CRUD with deletion constraints (instances, children, compositions)
- WP-2–4: Attribute, alarm, script definitions with lock flags and override granularity
- WP-5: Shared script CRUD with syntax validation
- WP-6–7: Composition with recursive nesting and canonical naming
- WP-8–11: Override granularity, locking rules, inheritance/composition scope
- WP-12: Naming collision detection on canonical names (recursive)
- WP-13: Graph acyclicity (inheritance + composition cycles)
Core services: TemplateService, SharedScriptService, TemplateResolver,
LockEnforcer, CollisionDetector, CycleDetector. 358 tests pass.

src/ScadaLink.Commons/Interfaces/Repositories/ITemplateEngineRepository.cs

@@ -1,4 +1,5 @@
 using ScadaLink.Commons.Entities.Instances;
+using ScadaLink.Commons.Entities.Scripts;
 using ScadaLink.Commons.Entities.Templates;
 
 namespace ScadaLink.Commons.Interfaces.Repositories;
@@ -70,5 +71,13 @@ public interface ITemplateEngineRepository
     Task UpdateAreaAsync(Area area, CancellationToken cancellationToken = default);
     Task DeleteAreaAsync(int id, CancellationToken cancellationToken = default);
 
+    // SharedScript
+    Task<SharedScript?> GetSharedScriptByIdAsync(int id, CancellationToken cancellationToken = default);
+    Task<SharedScript?> GetSharedScriptByNameAsync(string name, CancellationToken cancellationToken = default);
+    Task<IReadOnlyList<SharedScript>> GetAllSharedScriptsAsync(CancellationToken cancellationToken = default);
+    Task AddSharedScriptAsync(SharedScript sharedScript, CancellationToken cancellationToken = default);
+    Task UpdateSharedScriptAsync(SharedScript sharedScript, CancellationToken cancellationToken = default);
+    Task DeleteSharedScriptAsync(int id, CancellationToken cancellationToken = default);
+
     Task<int> SaveChangesAsync(CancellationToken cancellationToken = default);
 }