backend phase 2: identity — phone-OTP auth, sessions & roles (REST)

- six REST endpoints (auth/request_otp, verify_otp, refresh, logout, me,
  me/select_role) wrapping the existing JWE/TOTP/RBAC engine
- usr.UserSessions with refresh-token rotation + stolen-token (replay)
  detection → revoke-all + 401; logout rotates the security stamp
- users extended: gender, national_id (enc, NULL until KYC),
  shahkar_verified_at (auto-reset on phone change), phone_hash UNIQUE,
  is_active, deleted_at + soft-delete filter; phone/email/national_id
  encrypted at rest via IFieldEncryptor value converter
- user_roles grant/revoke audit trail + global revoked filter; 7 roles
  seeded; admin sub-roles never self-assignable (403)
- ISmsSender seam (mock logs the OTP code) replaces the TODO log lines
- OperationResult/BaseController learned enveloped 401/403
- auth knobs as platform_configs rows (resend/attempts/session TTL)
- migration IdentitySessionsAndUserExtensions applied to the dev DB
- 24 new tests incl. Baya.Test.Api (WebApplicationFactory over SQLite);
  47 total green, zero new build warnings; swagger snapshot + contract
  (identity-auth.md), handoff, report, mocks-registry updated

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/src/API/Baya.Web.Api/Program.cs

@@ -94,8 +94,13 @@ builder.Services.ConfigureGrpcPluginServices();
 var app = builder.Build();
 
 
-await app.ApplyMigrationsAsync();
-await app.SeedDefaultUsersAsync();
+// Integration tests (WebApplicationFactory, env "Testing") run on in-memory SQLite — the SQL Server
+// migrations can't apply there; the test factory does EnsureCreated + seeding itself.
+if (!app.Environment.IsEnvironment("Testing"))
+{
+    await app.ApplyMigrationsAsync();
+    await app.SeedDefaultUsersAsync();
+}
 
 if (app.Environment.IsDevelopment())
 {
@@ -121,5 +126,8 @@ app.ConfigureGrpcPipeline();
 
 await app.RunAsync();
 
+/// <summary>Exposes the entry point to <c>WebApplicationFactory&lt;Program&gt;</c>-based integration tests.</summary>
+public partial class Program;
+