Move CV matcher repositories from cv-matcher-api to cv-matcher-data

- Move IAiPromptsRepository, EfAiPromptsRepository to cv-matcher-data/Repositories
- Move IMatcherRepository, EfMatcherRepository to cv-matcher-data/Repositories
- Add cv-matcher-api-models ProjectReference to cv-matcher-data.csproj
- Delete cv-matcher-api/Data folder (all data access now in cv-matcher-data)

Pattern: cv-matcher-api (logic) → cv-matcher-data (repositories, EF entities, migrations)
Aligns with rag-api → rag-data consolidation

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

Apis/cv-matcher-data/Repositories/EfAiPromptsRepository.cs

@@ -0,0 +1,24 @@
+using CvMatcher.Data;
+using CvMatcher.Data.Repositories.Contracts;
+using Microsoft.EntityFrameworkCore;
+
+namespace CvMatcher.Data.Repositories;
+
+public sealed class EfAiPromptsRepository : IAiPromptsRepository
+{
+    private readonly CvMatcherDbContext _db;
+
+    public EfAiPromptsRepository(CvMatcherDbContext db)
+    {
+        _db = db;
+    }
+
+    public async Task<string?> GetAsync(string key, string language, CancellationToken ct)
+    {
+        return await _db.AiPrompts
+            .AsNoTracking()
+            .Where(x => x.Key == key && x.Language == language)
+            .Select(x => x.Value)
+            .FirstOrDefaultAsync(ct);
+    }
+}