refactor(db): adopt email settings migration

JobTrackerApi/Services/StartupInitializationExtensions.cs

@@ -1469,25 +1469,6 @@ public static class StartupInitializationExtensions
                         cmd.ExecuteNonQuery();
                     }
 
-                    if (!HasMySqlTable(conn, "SystemEmailSettings"))
-                    {
-                        using var cmd = conn.CreateCommand();
-                        cmd.CommandText = @"CREATE TABLE IF NOT EXISTS `SystemEmailSettings` (
-        `Id` int NOT NULL,
-        `Enabled` tinyint(1) NULL,
-        `SmtpHost` longtext NULL,
-        `SmtpPort` int NULL,
-        `SmtpUser` longtext NULL,
-        `SmtpPassword` longtext NULL,
-        `From` longtext NULL,
-        `FromName` longtext NULL,
-        `SmtpEnableSsl` tinyint(1) NULL,
-        `SmtpTimeoutMs` int NULL,
-        PRIMARY KEY (`Id`)
-        );";
-                        cmd.ExecuteNonQuery();
-                    }
-
                     if (!HasMySqlTable(conn, "CvUploadArtifacts"))
                     {
                         using var cmd = conn.CreateCommand();

JobTrackerApi/Services/StartupSchemaOwnership.cs

@@ -0,0 +1,71 @@
+namespace JobTrackerApi.Services;
+
+/// <summary>
+/// Records the current table-creation owner while the legacy startup reconciler is retired in
+/// migration-backed increments. This is a governance boundary, not a second schema definition.
+/// A table must appear in exactly one creation set.
+/// </summary>
+internal static class StartupSchemaOwnership
+{
+    internal static readonly IReadOnlySet<string> MigrationOwnedTables = new HashSet<string>(StringComparer.Ordinal)
+    {
+        "AccountDeletionFiles",
+        "AccountDeletionRequests",
+        "AiUsageRecords",
+        "Attachments",
+        "Companies",
+        "Correspondences",
+        "EmailDrafts",
+        "EmailSendAttempts",
+        "JobApplications",
+        "JobEvents",
+        "Jobs",
+        "RuleSettings",
+        "SystemEmailSettings",
+        "UserNotifications",
+        "UserOperations",
+    };
+
+    internal static readonly IReadOnlySet<string> ReconcilerOwnedTables = new HashSet<string>(StringComparer.Ordinal)
+    {
+        "AiInteractions",
+        "AiWorkspaceNotes",
+        "ApplicationChecklistItems",
+        "AspNetRoleClaims",
+        "AspNetRoles",
+        "AspNetUserClaims",
+        "AspNetUserLogins",
+        "AspNetUserRoles",
+        "AspNetUsers",
+        "AspNetUserTokens",
+        "CareerCertifications",
+        "CareerEducations",
+        "CareerExperiences",
+        "CareerLanguages",
+        "CareerProfiles",
+        "CareerProfileVersions",
+        "CareerProjects",
+        "CareerSkills",
+        "CoverLetterVersions",
+        "CvExtractionRuns",
+        "CvUploadArtifacts",
+        "CvVariants",
+        "CvVariantVersions",
+        "GmailConnections",
+        "GmailReviewDecisions",
+        "ImapConnections",
+        "InterviewPrepItems",
+        "InterviewPrepNotes",
+        "MicrosoftGraphConnections",
+        "TailoredCvDrafts",
+        "TrustedDevices",
+        "TwoFactorRecoveryCodes",
+        "UserRuleSettings",
+        "UserSessions",
+    };
+
+    // Historical migrations contain guarded compatibility bootstraps for these tables so direct
+    // EF tooling can traverse the chain. Their current creation owner remains the reconciler.
+    internal static readonly IReadOnlySet<string> MigrationCompatibilityBootstrapTables =
+        new HashSet<string>(StringComparer.Ordinal) { "AiInteractions", "AspNetUsers" };
+}