feat(backend): add communication, tester, admin and middleman modules

Implement step 17 modules: threads/messages, notifications with automation (submission.created, idea.created, grant_call.opened), innovation test feedback, admin panel (submissions, verify, metrics, grant call status), Middleman adaptation and partnerships. Split multi-type files into one type per file and replace object-valued dictionaries with string-valued maps in data contracts (migrations 0006/0007).

backend/Controllers/ConsentsController.cs

@@ -48,7 +48,7 @@ public class ConsentsController : ControllerBase
             userId,
             "consent.grant",
             consent.Id,
-            new Dictionary<string, object?> { ["scope"] = request.Scope },
+            new Dictionary<string, string?> { ["scope"] = request.Scope },
             cancellationToken);
 
         return StatusCode(StatusCodes.Status201Created, consent);
@@ -90,7 +90,7 @@ public class ConsentsController : ControllerBase
             userId,
             "consent.revoke",
             consentId,
-            new Dictionary<string, object?>(),
+            new Dictionary<string, string?>(),
             cancellationToken);
 
         return NoContent();