Rename EmailApi.Models.* namespace to Email.Models.* in email-api-models

Removes the spurious Api segment to match the pattern used by all other
models projects: CvMatcher.Models.*, Rag.Models.*, PageFetcher.Models.*.

Updated all consumers: email-api, api, cv-search-job.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Apis/api/Program.cs

@@ -5,8 +5,8 @@ using Email.Data;
 using Email.Data.Repositories;
 using Email.Data.Repositories.Contracts;
 using Email.Data.Services;
-using EmailApi.Models.Clients;
-using EmailApi.Models.Settings;
+using Email.Models.Clients;
+using Email.Models.Settings;
 using Microsoft.EntityFrameworkCore;
 using Models.Settings;
 using MyAi.Data;

Apis/api/Services/EmailApiEmailSender.cs

@@ -1,8 +1,8 @@
 using Api.Services.Contracts;
 using CvMatcher.Models.Responses;
 using Email.Data.Services;
-using EmailApi.Models.Clients;
-using EmailApi.Models.Requests;
+using Email.Models.Clients;
+using Email.Models.Requests;
 using Microsoft.Extensions.Options;
 using Models.Requests;
 using Models.Settings;