feat(myai-data): cleanup migration removes email.* and ai.* templates; update CLAUDE.md

- Add DeleteMigratedTemplates migration: removes all email.* and ai.*
  rows from myAi.Templates (now owned by emailApi.EmailTemplates and
  cvMatcher.AiPrompts respectively)
- CLAUDE.md: add email-api-data to solution layout; add emailApi schema
  to database schemas table; add email-api-data EF CLI migration command;
  note cv-matcher-api no longer runs MyAi migrations

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

CLAUDE.md

@@ -65,16 +65,17 @@ Apis/
   api-models/             DTOs and settings for api only.
   email-api/              Internal SMTP email relay (no public port). All email sending goes here.
   email-api-models/       Refit client + SendEmailRequest + EmailApiSettings (shared by api and cv-search-job).
-  cv-matcher-api/         Internal CV match engine (port 8082). Runs CvMatcher + CvSearch + MyAi DB migrations.
+  cv-matcher-api/         Internal CV match engine (port 8082). Runs CvMatcher + CvSearch DB migrations.
   cv-matcher-api-models/  DTOs shared between api and cv-matcher-api (incl. JobSearchSettings).
   rag-api/                Internal RAG/vector-search service (port 8081).
   rag-api-models/         DTOs shared with rag-api.
   common/                 Cross-service infrastructure primitives (DatabaseSettings, InternalApiSettings, etc.).
   shared-data/            Abstract BaseEntity base class. No DbContext.
-  cv-matcher-data/        CvMatcherDbContext + entities + migrations (schema: cvMatcher).
+  cv-matcher-data/        CvMatcherDbContext + entities + migrations (schema: cvMatcher). Owns AiPrompts table.
   cv-search-data/         CvSearchDbContext + entities + migrations (schema: cvSearch).
+  email-api-data/         EmailApiDbContext + entities + migrations (schema: emailApi). Owns EmailTemplates table.
   rag-data/               RagDbContext + entities + migrations (schema: rag).
-  myai-data/              MyAiDbContext + entities + migrations (schema: myAi).
+  myai-data/              MyAiDbContext + entities + migrations (schema: myAi). Keeps only html.* templates.
 Helpers/
   startup-helpers/        Shared Program.cs bootstrap: Serilog, Swagger, .env loading, Azure Key Vault, middleware.
   common-helpers/         Utility helpers.
@@ -110,12 +111,15 @@ Config lives in `docker-compose/.env`. All env vars use `${VAR:-default}` fallba
 | Schema      | Owner DbContext       | Migrations project    | Startup project       |
 |-------------|----------------------|-----------------------|-----------------------|
 | `cvMatcher` | `CvMatcherDbContext` | `cv-matcher-data`     | `cv-matcher-api`      |
+| `emailApi`  | `EmailApiDbContext`  | `email-api-data`      | `email-api`           |
 | `rag`       | `RagDbContext`       | `rag-data`            | `rag-api`             |
 | `cvSearch`  | `CvSearchDbContext`  | `cv-search-data`      | `cv-matcher-api`      |
 | `myAi`      | `MyAiDbContext`      | `myai-data`           | `api`                 |
 
 Both `cv-matcher-api` and `cv-search-job` register `CvSearchDbContext` and call `db.Database.Migrate()` on startup (idempotent — safe for both to run).
 
+`api` and `cv-search-job` also register `EmailApiDbContext` (read-only — `email-api` is the sole migration owner). They use it to load email templates via `IEmailTemplateService` (10-min cache, singleton).
+
 ## EF Core migrations
 
 ```powershell
@@ -125,6 +129,12 @@ dotnet ef migrations add <MigrationName> `
   --project Apis/cv-matcher-data `
   --startup-project Apis/cv-matcher-api
 
+# email-api-data (schema: emailApi)
+dotnet ef migrations add <MigrationName> `
+  --context EmailApiDbContext `
+  --project Apis/email-api-data `
+  --startup-project Apis/email-api
+
 # rag-data (schema: rag)
 dotnet ef migrations add <MigrationName> `
   --context RagDbContext `