refactor(db): migrate AI interaction history

Move append-only AI results into an additive provider-aware migration. Preserve generated content, usage counters, indexes, and application cascade semantics.
2026-08-30 18:48:42 +02:00
parent bc28893b6f
commit ae57d1afde
9 changed files with 148 additions and 54 deletions
@@ -656,6 +656,53 @@ public sealed class MigrationChainTests
        Assert.Empty(await db.Database.GetPendingMigrationsAsync());
    }

+    [Fact]
+    public async Task Ai_interaction_adoption_preserves_history_usage_and_cascade()
+    {
+        await using var connection = new SqliteConnection("Data Source=:memory:");
+        await connection.OpenAsync();
+        await using var db = Context(connection);
+        var migrator = db.GetService<IMigrator>();
+        await migrator.MigrateAsync("20260830128000_AdoptCvVariantSchema");
+        await ExecuteAsync(connection, """
+            INSERT INTO Companies (Name) VALUES ('Fixture company');
+            INSERT INTO JobApplications
+                (CompanyId, JobTitle, DateApplied, SavedAt, Status, ResponseReceived, OwnerUserId,
+                 HasResume, HasCoverLetter, HasPortfolio, HasOtherAttachment, IsDeleted)
+            VALUES
+                (1, 'Fixture role', '2026-08-01T09:00:00', '2026-07-20T09:00:00',
+                 'Applied', 0, 'owner-fixture', 0, 0, 0, 0, 0);
+            INSERT INTO AiInteractions
+                (OwnerUserId, JobApplicationId, Module, Mode, Title, Provider, ResultJson,
+                 InputCharacterCount, OutputCharacterCount, EstimatedTokenCount, CreatedAtUtc)
+            VALUES
+                ('owner-fixture', 1, 'cover-letter', 'professional', 'Cover letter draft',
+                 'fixture-provider', '{"text":"preserve me"}', 1200, 640, 460,
+                 '2026-08-30T09:00:00+00:00');
+            """);
+
+        await migrator.MigrateAsync();
+        Assert.Equal("{\"text\":\"preserve me\"}", await ScalarAsync<string>(connection,
+            "SELECT ResultJson FROM AiInteractions WHERE Id = 1;"));
+        Assert.Equal(460L, await ScalarAsync<long>(connection,
+            "SELECT EstimatedTokenCount FROM AiInteractions WHERE Id = 1;"));
+
+        await migrator.MigrateAsync("20260830128000_AdoptCvVariantSchema");
+        Assert.Equal("professional", await ScalarAsync<string>(connection,
+            "SELECT Mode FROM AiInteractions WHERE Id = 1;"));
+        await migrator.MigrateAsync();
+        Assert.Equal(2L, await ScalarAsync<long>(connection, """
+            SELECT COUNT(*) FROM sqlite_master
+            WHERE type = 'index' AND name IN (
+                'IX_AiInteractions_JobApplicationId',
+                'IX_AiInteractions_Owner_Job_Module_Created');
+            """));
+
+        await ExecuteAsync(connection, "DELETE FROM JobApplications WHERE Id = 1;");
+        Assert.Equal(0L, await ScalarAsync<long>(connection, "SELECT COUNT(*) FROM AiInteractions;"));
+        Assert.Empty(await db.Database.GetPendingMigrationsAsync());
+    }
+
    private static JobTrackerContext Context(SqliteConnection connection)
    {
        var currentUser = new Mock<ICurrentUserService>();
@@ -0,0 +1,76 @@
+using System;
+using JobTrackerApi.Data;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace JobTrackerApi.Migrations;
+
+/// <summary>
+/// Establishes explicit migration ownership for append-only AI interaction history while retaining
+/// rows provisioned by the historical compatibility bootstrap or startup reconciler.
+/// </summary>
+[DbContext(typeof(JobTrackerContext))]
+[Migration("20260830129000_AdoptAiInteractionSchema")]
+public sealed class AdoptAiInteractionSchema : Migration
+{
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        if (ActiveProvider.Contains("MySql", StringComparison.OrdinalIgnoreCase))
+        {
+            migrationBuilder.Sql("""
+                CREATE TABLE IF NOT EXISTS `AiInteractions` (
+                    `Id` int NOT NULL AUTO_INCREMENT,
+                    `OwnerUserId` varchar(255) NOT NULL,
+                    `JobApplicationId` int NOT NULL,
+                    `Module` varchar(64) NOT NULL,
+                    `Mode` varchar(64) NULL,
+                    `Title` varchar(255) NOT NULL,
+                    `Provider` varchar(100) NOT NULL,
+                    `ResultJson` longtext NOT NULL,
+                    `InputCharacterCount` int NOT NULL DEFAULT 0,
+                    `OutputCharacterCount` int NOT NULL DEFAULT 0,
+                    `EstimatedTokenCount` int NOT NULL DEFAULT 0,
+                    `CreatedAtUtc` datetime(6) NOT NULL,
+                    PRIMARY KEY (`Id`),
+                    CONSTRAINT `FK_AiInteractions_JobApplications_JobApplicationId`
+                        FOREIGN KEY (`JobApplicationId`) REFERENCES `JobApplications` (`Id`) ON DELETE CASCADE
+                ) CHARACTER SET=utf8mb4;
+                CREATE INDEX IF NOT EXISTS `IX_AiInteractions_JobApplicationId`
+                    ON `AiInteractions` (`JobApplicationId`);
+                CREATE INDEX IF NOT EXISTS `IX_AiInteractions_Owner_Job_Module_Created`
+                    ON `AiInteractions` (`OwnerUserId`, `JobApplicationId`, `Module`, `CreatedAtUtc`);
+                """);
+            return;
+        }
+
+        migrationBuilder.Sql("""
+            CREATE TABLE IF NOT EXISTS "AiInteractions" (
+                "Id" INTEGER NOT NULL CONSTRAINT "PK_AiInteractions" PRIMARY KEY AUTOINCREMENT,
+                "OwnerUserId" TEXT NOT NULL,
+                "JobApplicationId" INTEGER NOT NULL,
+                "Module" TEXT NOT NULL,
+                "Mode" TEXT NULL,
+                "Title" TEXT NOT NULL,
+                "Provider" TEXT NOT NULL,
+                "ResultJson" TEXT NOT NULL,
+                "InputCharacterCount" INTEGER NOT NULL DEFAULT 0,
+                "OutputCharacterCount" INTEGER NOT NULL DEFAULT 0,
+                "EstimatedTokenCount" INTEGER NOT NULL DEFAULT 0,
+                "CreatedAtUtc" TEXT NOT NULL,
+                CONSTRAINT "FK_AiInteractions_JobApplications_JobApplicationId"
+                    FOREIGN KEY ("JobApplicationId") REFERENCES "JobApplications" ("Id") ON DELETE CASCADE
+            );
+            CREATE INDEX IF NOT EXISTS "IX_AiInteractions_JobApplicationId"
+                ON "AiInteractions" ("JobApplicationId");
+            CREATE INDEX IF NOT EXISTS "IX_AiInteractions_Owner_Job_Module_Created"
+                ON "AiInteractions" ("OwnerUserId", "JobApplicationId", "Module", "CreatedAtUtc");
+            """);
+    }
+
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        // Preserve append-only AI history that may pre-date explicit migration ownership.
+    }
+}
@@ -705,31 +705,11 @@ public static class StartupInitializationExtensions
                    Exec(c, """CREATE INDEX IF NOT EXISTS "IX_CareerLanguages_OwnerUserId_CareerProfileId_SortOrder" ON "CareerLanguages" ("OwnerUserId", "CareerProfileId", "SortOrder");""");
                }

-                // Phase 5 AI Workspace: append-only AI interaction history per job application.
-                static void EnsureAiInteractionsTable(DbConnection c)
+                static void ReconcileAiInteractionUsageColumns(DbConnection c)
                {
-                    Exec(c, """
-        CREATE TABLE IF NOT EXISTS "AiInteractions" (
-            "Id" INTEGER NOT NULL CONSTRAINT "PK_AiInteractions" PRIMARY KEY AUTOINCREMENT,
-            "OwnerUserId" TEXT NOT NULL,
-            "JobApplicationId" INTEGER NOT NULL,
-            "Module" TEXT NOT NULL,
-            "Mode" TEXT NULL,
-            "Title" TEXT NOT NULL,
-            "Provider" TEXT NOT NULL,
-            "ResultJson" TEXT NOT NULL,
-            "InputCharacterCount" INTEGER NOT NULL DEFAULT 0,
-            "OutputCharacterCount" INTEGER NOT NULL DEFAULT 0,
-            "EstimatedTokenCount" INTEGER NOT NULL DEFAULT 0,
-            "CreatedAtUtc" TEXT NOT NULL,
-            CONSTRAINT "FK_AiInteractions_JobApplications_JobApplicationId" FOREIGN KEY ("JobApplicationId") REFERENCES "JobApplications" ("Id") ON DELETE CASCADE
-        );
-        """);
                    EnsureColumn(c, "AiInteractions", "InputCharacterCount", "ALTER TABLE AiInteractions ADD COLUMN InputCharacterCount INTEGER NOT NULL DEFAULT 0;");
                    EnsureColumn(c, "AiInteractions", "OutputCharacterCount", "ALTER TABLE AiInteractions ADD COLUMN OutputCharacterCount INTEGER NOT NULL DEFAULT 0;");
                    EnsureColumn(c, "AiInteractions", "EstimatedTokenCount", "ALTER TABLE AiInteractions ADD COLUMN EstimatedTokenCount INTEGER NOT NULL DEFAULT 0;");
-                    Exec(c, """CREATE INDEX IF NOT EXISTS "IX_AiInteractions_JobApplicationId" ON "AiInteractions" ("JobApplicationId");""");
-                    Exec(c, """CREATE INDEX IF NOT EXISTS "IX_AiInteractions_Owner_Job_Module_Created" ON "AiInteractions" ("OwnerUserId", "JobApplicationId", "Module", "CreatedAtUtc");""");
                }

                // Phase 5 Milestone 2: the application checklist (workflow guidance over readiness signals).
@@ -803,7 +783,7 @@ public static class StartupInitializationExtensions

                ReconcileGmailConnectionColumns(conn);
                EnsureCareerProfileTables(conn);
-                EnsureAiInteractionsTable(conn);
+                ReconcileAiInteractionUsageColumns(conn);
                EnsureApplicationChecklistTable(conn);
                EnsureCoverLetterVersionsTable(conn);
                EnsureInterviewPrepItemsTable(conn);
@@ -1200,28 +1180,6 @@ public static class StartupInitializationExtensions
                    DropMalformedMySqlTable(conn, "CoverLetterVersions", "CreatedAtUtc", "datetime");
                    DropMalformedMySqlTable(conn, "InterviewPrepItems", "CreatedAtUtc", "datetime");

-                    if (!HasMySqlTable(conn, "AiInteractions") && HasMySqlTable(conn, "JobApplications"))
-                    {
-                        using var cmd = conn.CreateCommand();
-                        cmd.CommandText = @"CREATE TABLE IF NOT EXISTS `AiInteractions` (
-        `Id` int NOT NULL AUTO_INCREMENT,
-        `OwnerUserId` varchar(255) NOT NULL,
-        `JobApplicationId` int NOT NULL,
-        `Module` varchar(64) NOT NULL,
-        `Mode` varchar(64) NULL,
-        `Title` varchar(255) NOT NULL,
-        `Provider` varchar(100) NOT NULL,
-        `ResultJson` longtext NOT NULL,
-        `InputCharacterCount` int NOT NULL DEFAULT 0,
-        `OutputCharacterCount` int NOT NULL DEFAULT 0,
-        `EstimatedTokenCount` int NOT NULL DEFAULT 0,
-        `CreatedAtUtc` datetime(6) NOT NULL,
-        PRIMARY KEY (`Id`),
-        CONSTRAINT `FK_AiInteractions_JobApplications_JobApplicationId` FOREIGN KEY (`JobApplicationId`) REFERENCES `JobApplications` (`Id`) ON DELETE CASCADE
-        );";
-                        cmd.ExecuteNonQuery();
-                    }
-
                    if (!HasMySqlTable(conn, "ApplicationChecklistItems") && HasMySqlTable(conn, "JobApplications"))
                    {
                        using var cmd = conn.CreateCommand();
@@ -13,6 +13,7 @@ internal static class StartupSchemaOwnership
        "AccountDeletionRequests",
        "AiUsageRecords",
        "AiWorkspaceNotes",
+        "AiInteractions",
        "Attachments",
        "Companies",
        "Correspondences",
@@ -43,7 +44,6 @@ internal static class StartupSchemaOwnership

    internal static readonly IReadOnlySet<string> ReconcilerOwnedTables = new HashSet<string>(StringComparer.Ordinal)
    {
-        "AiInteractions",
        "ApplicationChecklistItems",
        "AspNetRoleClaims",
        "AspNetRoles",
@@ -67,5 +67,5 @@ internal static class StartupSchemaOwnership
    // 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" };
+        new HashSet<string>(StringComparer.Ordinal) { "AspNetUsers" };
 }
@@ -558,7 +558,7 @@ SEC-008 implements the same durable state machine with `<final>.uploading` and `

 ### P3-1 — Reduce dual schema ownership incrementally

-**Status (2026-08-30): in progress.** All 49 model tables now have an executable, disjoint creation-owner classification. Sixteen formerly reconciler-created tables—including authentication support, email-provider connections, CV extraction persistence, tailored CV drafts, job-workspace AI notes, and CV variant history—have moved through additive provider-aware migrations with legacy-row preservation, downgrade/retry safety, startup-DDL removal, fresh SQLite runtime proof and generated MariaDB SQL. The Gmail decision migration also closes its missing MariaDB creation path. Nineteen startup-created tables remain; see `docs/verification/jt-019-schema-ownership.md` and V-194–V-202.
+**Status (2026-08-30): in progress.** All 49 model tables now have an executable, disjoint creation-owner classification. Seventeen formerly reconciler-created tables—including authentication support, email-provider connections, CV extraction persistence, tailored CV drafts, job-workspace AI notes, CV variant history, and append-only AI interactions—have moved through additive provider-aware migrations with legacy-row preservation, downgrade/retry safety, startup-DDL removal, fresh SQLite runtime proof and generated MariaDB SQL. The Gmail decision migration also closes its missing MariaDB creation path. Eighteen startup-created tables remain; see `docs/verification/jt-019-schema-ownership.md` and V-194–V-203.

 - **Findings/scope:** JT-019; inventory reconciler operations and move stable schema ownership to EF migrations in small steps.
 - **Dependencies:** provider upgrade fixtures and P2-2 restore safety.
@@ -234,3 +234,4 @@ Output was reduced to filenames and commit counts. The token artifact appears un
 | V-200 | Ownership/migration chain; populated adoption/downgrade/retry; FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move job-specific tailored CV drafts to migration ownership without losing generated or edited content | PASS — focused ownership/migration 12/12; summary, custom-section and context data survive adoption, downgrade and re-upgrade; both indexes exist; deleting the parent application cascades to the draft; generated MariaDB SQL is provider-safe; startup no longer creates the table; full backend 728/728 | MariaDB SQL generated only; no provider account or production migration. Guarded MariaDB index/auto-increment repairs remain temporarily. Twenty-three reconciler-owned tables remain | JT-019 tailored CV transfer complete; career-profile aggregate remains a dependency-aware future batch |
 | V-201 | Ownership/migration chain; populated adoption/downgrade/retry; FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move persisted interview-preparation and irregular AI workspace notes to migration ownership without losing reviewed outputs | PASS — focused ownership/migration 13/13; interview summary and candidate-fit JSON survive adoption, downgrade and re-upgrade; both uniqueness indexes exist; deleting the parent application cascades through both tables; generated MariaDB SQL is provider-safe; startup creates neither table; full backend 729/729 | MariaDB SQL generated only; no provider account or production migration. Guarded MariaDB index/auto-increment repairs remain temporarily. Twenty-one reconciler-owned tables remain | JT-019 job-workspace note transfer complete; CV variants and career-profile aggregates remain dependency-aware batches |
 | V-202 | Ownership/migration chain; populated adoption/downgrade/retry; relationship/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move saved CV variants and append-only revision history to migration ownership without losing user documents | PASS — focused ownership/migration 14/14; public slug, settings and two revisions survive adoption, downgrade and re-upgrade; four indexes exist; deleting the job nulls only the CV link and deleting the CV cascades through revisions; generated MariaDB SQL is provider-safe; startup creates neither table; full backend 730/730 | MariaDB SQL generated only; no provider account or production migration. Guarded malformed-empty/index/auto-increment repair remains temporarily. Nineteen reconciler-owned tables remain | JT-019 CV variant aggregate transfer complete; career-profile aggregate and remaining feature tables continue incrementally |
+| V-203 | Ownership/migration chain; populated adoption/downgrade/retry; usage/FK/index assertions; MariaDB script; full backend | Repository root / disposable local SQLite | Move append-only AI interaction history to explicit migration ownership without losing generated results or usage data | PASS — focused ownership/migration 15/15; result JSON, mode, provider and usage counters survive adoption, downgrade and re-upgrade; both indexes exist; deleting the parent application cascades through history; generated MariaDB SQL is provider-safe; startup no longer creates the table; full backend 731/731 | MariaDB SQL generated only; no provider account or production migration. Historical compatibility bootstrap and guarded counter/shape/index repairs remain. Eighteen reconciler-owned tables remain | JT-019 AI interaction transfer complete; checklist/document/preparation tables continue incrementally |
@@ -66,7 +66,8 @@ already-correct database. Two consequences worth knowing:

 Created by EF migrations, never by the reconciler:

-`AccountDeletionFiles`, `AccountDeletionRequests`, `AiUsageRecords`, `AiWorkspaceNotes`, `Attachments`, `Companies`,
+`AccountDeletionFiles`, `AccountDeletionRequests`, `AiInteractions`, `AiUsageRecords`, `AiWorkspaceNotes`,
+`Attachments`, `Companies`,
 `Correspondences`, `CvExtractionRuns`, `CvUploadArtifacts`, `CvVariants`, `CvVariantVersions`,
 `EmailDrafts`, `EmailSendAttempts`, `GmailConnections`,
 `GmailReviewDecisions`, `ImapConnections`, `InterviewPrepNotes`, `JobApplications`, `JobEvents`, `Jobs`,
@@ -110,6 +111,10 @@ The CV builder aggregate (`CvVariants` and `CvVariantVersions`) moved in
 `20260830128000_AdoptCvVariantSchema`. Public slugs remain unique, deleting a linked application
 sets the CV link to null, and deleting a CV cascades through its append-only revision history.

+`AiInteractions` moved in `20260830129000_AdoptAiInteractionSchema`. The older cross-feature usage
+migration retains its compatibility bootstrap for historical chain traversal, but startup no longer
+creates the table; only additive counter and guarded MariaDB shape/index repairs remain.
+
 The reconciler may **repair** these (add a missing column, add an index, fix a non-`AUTO_INCREMENT`
 primary key) and may seed the default `RuleSettings` row — but it must never `CREATE TABLE` them.
 It used to create `RuleSettings`, which is precisely why a clean install failed with
@@ -121,12 +126,14 @@ Created by `StartupInitializationExtensions`, with a **no-op migration** holding

 `CareerProfiles`, `CareerProfileVersions`, the six CareerProfile children (`CareerExperiences`,
 `CareerEducations`, `CareerSkills`, `CareerProjects`, `CareerCertifications`, `CareerLanguages`),
-`AiInteractions`, `ApplicationChecklistItems`, `CoverLetterVersions`, and `InterviewPrepItems`.
+`ApplicationChecklistItems`, `CoverLetterVersions`, and `InterviewPrepItems`.

 The seven ASP.NET Identity tables are also currently reconciler-owned, despite older wording that
 called them migration-owned: `AspNetRoles`, `AspNetUsers`, `AspNetRoleClaims`, `AspNetUserClaims`,
 `AspNetUserLogins`, `AspNetUserRoles`, and `AspNetUserTokens`. Guarded migration bootstraps for
-`AspNetUsers` and `AiInteractions` support standalone traversal but do not yet transfer ownership.
+`AspNetUsers` supports standalone traversal but does not yet transfer ownership. The historical
+`AiInteractions` bootstrap remains in the migration chain, but its current owner is the later
+provider-aware adoption migration.

 `StartupSchemaOwnership` is the executable inventory. Its tests require every EF model table to
 have exactly one creation owner and keep compatibility bootstraps out of the migration-owned set.
@@ -137,7 +144,7 @@ No-op migrations, each with a comment explaining why:
 |---|---|
 | `20260717222917_AddCareerProfileRelationalChildren` | the six CareerProfile children |
 | `20260718074509_AddCvVariants` | historical no-op; ownership transferred by `20260830128000_AdoptCvVariantSchema` |
-| `20260718131138_AddAiInteractions` | `AiInteractions` |
+| `20260718131138_AddAiInteractions` | historical no-op; ownership transferred by `20260830129000_AdoptAiInteractionSchema` |
 | `20260719085904_AddApplicationChecklistItems` | `ApplicationChecklistItems` |
 | `20260719094728_SyncCareerChildKeyLengths` | snapshot sync only |
 | `20260719120954_AddCoverLetterVersions` | `CoverLetterVersions` |
@@ -33,6 +33,8 @@ cohesive table groups. It does not attempt to delete the legacy reconciler whole
  workspace results, retaining reviewed output and both application cascade relationships.
 - Added `20260830128000_AdoptCvVariantSchema` for saved CVs and their append-only revision history,
  retaining public slugs, builder settings, and job-link/version retention semantics.
+- Added `20260830129000_AdoptAiInteractionSchema` to take ownership from both the startup reconciler
+  and historical compatibility bootstrap while retaining append-only results and usage counters.
 - Corrected the ownership runbook: new tables now default to migrations; the reconciler is legacy
  compatibility code to retire one dependency group at a time.

@@ -64,14 +66,16 @@ migration.
  re-upgrade; deleting the parent application still deletes both cached note types.
 - A representative CV and two saved revisions survive adoption, downgrade, and re-upgrade; deleting
  its job clears only the optional link, while deleting the CV cascades through its revisions.
+- A representative AI result, mode, provider, and usage counts survive adoption, downgrade, and
+  re-upgrade; deleting the parent application still cascades through its interaction history.
 - Generated MariaDB SQL contains the provider-correct `SystemEmailSettings` DDL.
- Full backend: 730/730 passed after the CV variant and history transfer.
+- Full backend: 731/731 passed after the AI interaction history transfer.
 - Fresh application startup over a new disposable SQLite database applied
  `20260830120000_AdoptSystemEmailSettingsSchema` and reached the healthy listening state.

 ## Remaining JT-019 work

-Nineteen model tables remain startup-created, including the Identity group and several tables
+Eighteen model tables remain startup-created, including the Identity group and several tables
 with parent dependencies. Transfer them in small dependency-aware migrations with blank, populated,
 retry and MariaDB runtime proof. Column/index repairs must remain until historical upgrade fixtures
 prove each one redundant.
@@ -52,6 +52,7 @@ Updated: 2026-08-30
 - Moved job-specific tailored CV drafts into a provider-aware migration; generated and edited content, indexes, and application cascade semantics are preserved.
 - Moved persisted interview-preparation and AI workspace notes into one provider-aware migration; reviewed outputs, uniqueness, and application cascades are preserved.
 - Moved saved CV variants and append-only revision history into one provider-aware migration; public slugs, settings, indexes, job-link nulling, and history cascades are preserved.
+- Moved append-only AI interaction history into a provider-aware migration; generated results, modes, providers, usage counters, indexes, and application cascades are preserved.

 ### In progress

@@ -82,7 +83,7 @@ Updated: 2026-08-30
 - Focused frontend: 2 suites, 6 tests passed.
 - Full frontend: 64 suites, 272 tests passed.
 - Next production build and TypeScript: passed.
- Full backend: 730/730 tests passed after the CV variant/history JT-019 transfer.
+- Full backend: 731/731 tests passed after the AI interaction history JT-019 transfer.
 - Portable Playwright launcher: resolved the user-local .NET 9 SDK; backend Release build passed with 0 warnings/errors.
 - Playwright: initial full run 9/10 exposed the intentional mobile Settings control change; updated focused rerun passed 1/1. A final complete browser rerun remains in the end-of-batch gate.
 - Focused backend match/intelligence verification: 34/34 passed.