@@ -0,0 +1,15 @@
+---
+'@objectstack/driver-sql': minor
+---
+
+feat(driver-sql): the five remaining `IDataDriver` doors publish their honest types — the contract's own, not `any` (#15267)
+
+**BREAKING** for TypeScript consumers — a published TYPE-surface narrowing, shipped as `minor` under the launch-window convention (the one PR #14434 set for the same class of change on `@objectstack/driver-memory`, and PR #15280 followed for `update()` on this very class). `SqlDriver` carried an EXPLICIT `Promise<any>` on five doors that `IDataDriver` had already declared narrower: `findOne()` (`Record<string, unknown> | null` — it has always answered `results[0] || null`), `create()` (`Record<string, unknown>`), `bulkCreate()` (`Record<string, unknown>[]`), `execute()` (`unknown`) and `explain()` (`unknown`). An explicit `any` satisfies all five structurally, so `tsc` said nothing while the emitted `.d.ts` told every consumer that `findOne()` never returns `null` and that `create()` returns whatever they like. #15280 un-masked `update()` and filed the census of what was left; this is that remainder.
+
+Each door is now declared as the contract declares it. A caller that read fields off `findOne()` through the `any` now narrows the `null` arm first; a caller that leaned on `any` to read undeclared members off `create()` / `bulkCreate()`, or to dereference a raw `execute()` / `explain()` result, now types what it reads. No runtime behaviour changes.
+
+`@objectstack/driver-sqlite-wasm` overrides none of these five and re-declares no member of its own, so it carries no entry: the narrowing reaches its consumers through this package's `.d.ts`. `@objectstack/driver-turso` overrides four of the five and carries its own entry.
+
+Out of scope and deliberately unmoved: `analyzeQuery()` (not an `IDataDriver` member) and `aggregate()` keep their annotations.
+
+<!-- adr-0087: not-required (type-surface-only packages/drivers/driver-sql/src/sql-driver.ts#findOne, packages/drivers/driver-sql/src/sql-driver.ts#create, packages/drivers/driver-sql/src/sql-driver.ts#bulkCreate) Published driver methods' declared returns move off an explicit `any` onto the contract's own shapes. No metadata key is removed, renamed or re-shaped, `packages/spec` is untouched, and nothing exists for `objectstack migrate meta`, `spec-changes.json` or the upgrade guide to rewrite; the obligation is a TypeScript narrowing at the consumer's own call site, delivered by the compiler. The same change to `execute` and `explain` is not named above because their destination is the contract's own `unknown`, which `isErasedType` counts as erased (TSO-U6), so predicate 4 cannot read them as narrowed-from-erased; they carry the identical disposition and the body states them in full. -->
@@ -0,0 +1,13 @@
+---
+'@objectstack/driver-turso': minor
+---
+
+feat(driver-turso): the overridden `IDataDriver` doors publish their honest types, not `any` (#15267)
+
+**BREAKING** for TypeScript consumers — a published TYPE-surface narrowing, shipped as `minor` under the launch-window convention. `TursoDriver` does not merely inherit these doors from `SqlDriver` — it OVERRIDES `findOne()`, `create()`, `bulkCreate()` and `execute()`, and each override was written out with its own explicit `Promise<any>`. So this package's emitted `.d.ts` re-declared four of the five doors as `any` on its own and would NOT have picked up the `@objectstack/driver-sql` narrowing — the same shape PR #15280 had to fix separately for `update()`.
+
+Both branches of every one of the four already answered the contract's type: the local branch forwards to `SqlDriver`'s door (narrowed alongside, #15267) and the remote branch passes `RemoteTransport`'s result — already declared `Record<string, unknown> | null`, `Record<string, unknown>`, `Record<string, unknown>[]` and `unknown` respectively — through the generic `formatRemoteRow` / `formatRemoteRows`. Each override now declares what it has always answered. A caller that read fields off `findOne()` through the `any` now narrows the `null` arm first. No runtime behaviour changes.
+
+`explain()` is not overridden here and reaches these consumers through `@objectstack/driver-sql`. Out of scope and deliberately unmoved: `upsert()`, `aggregate()` and `beginTransaction()` keep their annotations.
+
+<!-- adr-0087: not-required (type-surface-only packages/drivers/driver-turso/src/turso-driver.ts#findOne, packages/drivers/driver-turso/src/turso-driver.ts#create, packages/drivers/driver-turso/src/turso-driver.ts#bulkCreate) Published driver method overrides' declared returns move off an explicit `any` onto the contract's own shapes; no metadata key moves, `packages/spec` is untouched, and the obligation is a TypeScript narrowing at the consumer's own call site, delivered by the compiler. The same change to `execute` is not named above because its destination is the contract's own `unknown`, which `isErasedType` counts as erased (TSO-U6), so predicate 4 cannot read it as narrowed-from-erased; it carries the identical disposition and the body states it in full. -->
@@ -36,7 +36,7 @@
  *    swept underneath them — the card's own end-to-end table, executed.
  */
 
-import { afterAll, afterEach, describe, expect, it } from 'vitest';
+import { afterAll, afterEach, describe, expect, it, assert } from 'vitest';
 import { SqlDriver } from './sql-driver.js';
 import {
   MYSQL_CELL,
@@ -335,6 +335,7 @@ describe('#11389 — the write and filter paths keep reading a Date on the UTC c
           await driver.create('deal', { id: 'd1', close_date: new Date(iso) }, { bypassTenantAudit: true });
 
           const row = await driver.findOne('deal', { where: { id: 'd1' } }, { bypassTenantAudit: true });
+          assert(row !== null, 'findOne answered the not-found arm for a seeded id');
           expect(row.close_date).toBe(expected);
 
           // The filter path takes the same helper, so it has to agree — a
@@ -396,7 +397,9 @@ function declareZoneSweep(cell: DialectCell): void {
         const d = await connect();
         await underProcessZone(tz, async () => {
           const day = await d.findOne(TABLE, { where: { id: 'r1' } }, { bypassTenantAudit: true });
+          assert(day !== null, 'findOne answered the not-found arm for a seeded id');
           const ny = await d.findOne(TABLE, { where: { id: 'r2' } }, { bypassTenantAudit: true });
+          assert(ny !== null, 'findOne answered the not-found arm for a seeded id');
 
           expect(day.close_date, `${cell.label} read the wrong calendar day under TZ=${tz}`).toBe(DAY);
           // A one-day skew here changes the YEAR, which is the most legible
 
@@ -66,7 +66,7 @@
  * milliseconds — what `String(Date)` does — would be visible too.
  */
 
-import { describe, it, expect, beforeAll, afterAll } from 'vitest';
+import { describe, it, expect, beforeAll, afterAll, assert } from 'vitest';
 import type { DriverQuery } from '@objectstack/spec/contracts';
 import { SqlDriver } from './index.js';
 import {
@@ -224,6 +224,7 @@ function measure(cell: DialectCell): void {
 
     it('§A3 findOne(), and the rows update() and create() return, present the same shape', async () => {
       const one = await driver.findOne(TABLE, { where: { id: 'r1' } }, OPTS);
+      assert(one !== null, 'findOne answered the not-found arm for a seeded id');
       expect(one, 'findOne returned nothing').toBeTruthy();
       for (const col of INSTANT_COLUMNS) expectCanonicalInstant(one[col], `findOne ${col}`);
       expect(one.closed_at).toBe(CLOSED_AT[1]);
@@ -267,6 +268,7 @@ function measure(cell: DialectCell): void {
       // (`readback.first()` → `formatOutput`), so its return is a whole row and
       // the guard applies unqualified.
       const before = await driver.findOne(TABLE_RETURNS, { where: { id: 'w0' } }, OPTS);
+      assert(before !== null, 'findOne answered the not-found arm for a seeded id');
       expect(before, 'the seed row is missing').toBeTruthy();
       const merged = await driver.upsert(TABLE_RETURNS, { id: 'w0', title: 'write row 0 (merged)' }, undefined, OPTS);
       const inserted = await driver.upsert(
@@ -556,6 +558,7 @@ describe('#13973 §D — find(), distinct() and aggregate() present the audit co
     await driver.create(T_RAW, { id: 'x1', n: 2 }, OPTS);
     await (driver as any).knex(T_RAW).where('id', 'x1').update({ updated_at: '2026-01-10 09:00:00' });
     const legacy = await driver.findOne(T_RAW, { where: { id: 'x1' } }, OPTS);
+    assert(legacy !== null, 'findOne answered the not-found arm for a seeded id');
     expect(legacy.updated_at).toBe('2026-01-10T09:00:00.000Z');
     const distinct = await driver.distinct(T_RAW, 'updated_at', undefined, OPTS);
     expect(distinct).toContain('2026-01-10T09:00:00.000Z');
 
@@ -1,6 +1,6 @@
 // Copyright (c) 2025 ObjectStack. Licensed under the Apache-2.0 license.
 
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect, beforeEach, afterEach, assert } from 'vitest';
 import { SqlDriver } from '../src/index.js';
 
 describe('SqlDriver Advanced Operations (SQLite)', () => {
@@ -191,6 +191,7 @@ describe('SqlDriver Advanced Operations (SQLite)', () => {
         await driver.commitTransaction(trx);
 
         const result = await driver.findOne('orders', { where: { id: 'trx1' } });
+        assert(result !== null, 'findOne answered the not-found arm for a seeded id');
         expect(result).toBeDefined();
         expect(result.customer).toBe('TxUser');
       } catch (e) {
@@ -253,6 +254,7 @@ describe('SqlDriver Advanced Operations (SQLite)', () => {
         expect(created).toBeDefined();
 
         const updated = await driver.findOne('orders', { where: { id: '1' } });
+        assert(updated !== null, 'findOne answered the not-found arm for a seeded id');
         expect(updated.status).toBe('shipped');
 
         const deleted = await driver.findOne('orders', { where: { id: '5' } });
@@ -285,6 +287,7 @@ describe('SqlDriver Advanced Operations (SQLite)', () => {
       await driver.create('nullable_test', { id: '1', name: null, value: null });
 
       const result = await driver.findOne('nullable_test', { where: { id: '1' } });
+      assert(result !== null, 'findOne answered the not-found arm for a seeded id');
       expect(result).toBeDefined();
       expect(result.name).toBeNull();
       expect(result.value).toBeNull();
@@ -360,6 +363,7 @@ describe('SqlDriver Advanced Operations (SQLite)', () => {
 
     it('should handle findOne with query parameter', async () => {
       const result = await driver.findOne('orders', { where: { customer: 'Charlie' } });
+      assert(result !== null, 'findOne answered the not-found arm for a seeded id');
 
       expect(result).toBeDefined();
       expect(result.customer).toBe('Charlie');
 
@@ -15,7 +15,7 @@
  * instead of a 500.
  */
 
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect, beforeEach, afterEach, assert } from 'vitest';
 import { SqlDriver } from '../src/index.js';
 
 describe('SqlDriver array/object field persistence', () => {
@@ -64,6 +64,7 @@ describe('SqlDriver array/object field persistence', () => {
       { bypassTenantAudit: true },
     );
     const row = await driver.findOne('zoo', { where: { id: 'z1' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.tags).toEqual(['x', 'y']);
     expect(row.ms).toEqual(['red', 'green']);
     expect(row.cbs).toEqual(['email', 'push']);
@@ -77,12 +78,14 @@ describe('SqlDriver array/object field persistence', () => {
     await driver.create('zoo', { id: 'z2', name: 'B', tags: ['a'] }, { bypassTenantAudit: true });
     await driver.update('zoo', 'z2', { tags: ['a', 'b', 'c'] }, { bypassTenantAudit: true });
     const row = await driver.findOne('zoo', { where: { id: 'z2' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.tags).toEqual(['a', 'b', 'c']);
   });
 
   it('does not crash on an empty array', async () => {
     await driver.create('zoo', { id: 'z3', name: 'C', ms: [] }, { bypassTenantAudit: true });
     const row = await driver.findOne('zoo', { where: { id: 'z3' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.ms).toEqual([]);
   });
 });
@@ -154,7 +154,9 @@ describe('[#6943] batch and upsert re-seed a stale autonumber counter', () => {
     const numbers = await allNumbers();
     expect(new Set(numbers).size).toBe(numbers.length); // no duplicate anywhere in the table
     // Every row of the batch sits above the seeded range it straddled.
-    for (const r of created) expect(Number(r.case_number.slice('CASE-'.length))).toBeGreaterThan(39);
+    // [#15267] `bulkCreate()` resolves to `Record<string, unknown>[]` now, so the
+    // record number is read as the string it is rather than off an `any`.
+    for (const r of created) expect(Number(String(r.case_number).slice('CASE-'.length))).toBeGreaterThan(39);
   });
 
   it('re-seeds only the counter that went stale, leaving a co-tenant in the same batch alone', async () => {
 
@@ -1,6 +1,6 @@
 // Copyright (c) 2026 ObjectStack. Licensed under the Apache-2.0 license.
 
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect, beforeEach, afterEach, assert } from 'vitest';
 import { SqlDriver } from '../src/index.js';
 
 /**
@@ -51,6 +51,7 @@ describe('SqlDriver bulkCreate JSON marshaling (#2735)', () => {
 
     // Read-back parity: JSON columns decode to objects, same as single insert.
     const v1 = await driver.findOne('venue', { where: { id: 'v1' } });
+    assert(v1 !== null, 'findOne answered the not-found arm for a seeded id');
     expect(v1.location).toEqual({ lat: 47.6062, lng: -122.3321 });
     expect(v1.tags).toEqual(['a', 'b']);
     expect(v1.meta).toEqual({ tier: 1 });
 
@@ -13,7 +13,7 @@
  * behaviour and guard that `Field.datetime` keeps its full-instant meaning.
  */
 
-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect, beforeEach, afterEach, assert } from 'vitest';
 import { SqlDriver } from '../src/index.js';
 
 describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', () => {
@@ -50,6 +50,7 @@ describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', (
       { bypassTenantAudit: true },
     );
     const row = await driver.findOne('deal', { where: { id: 'd1' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.close_date).toBe('2026-07-15');
   });
 
@@ -60,6 +61,7 @@ describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', (
       { bypassTenantAudit: true },
     );
     const row = await driver.findOne('deal', { where: { id: 'd2' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.close_date).toBe('2026-07-15');
   });
 
@@ -70,6 +72,7 @@ describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', (
       { bypassTenantAudit: true },
     );
     const row = await driver.findOne('deal', { where: { id: 'd3' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.close_date).toBe('2026-07-15');
   });
 
@@ -80,8 +83,12 @@ describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', (
       { bypassTenantAudit: true },
     );
     const row = await driver.findOne('deal', { where: { id: 'd4' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     // datetime must retain its wall-clock time — never sliced to YYYY-MM-DD.
-    expect(new Date(row.signed_at).toISOString()).toBe('2026-03-20T12:34:56.000Z');
+    // [#15267] `findOne()` resolves to `Record<string, unknown>` now — the
+    // stored instant comes back as a `Date` on some clients and an ISO string
+    // on others, which is exactly the union `Date` accepts.
+    expect(new Date(row.signed_at as string | number | Date).toISOString()).toBe('2026-03-20T12:34:56.000Z');
   });
 
   it('matches a date-only equality filter against a timestamped write (the silent-miss regression)', async () => {
@@ -120,6 +127,7 @@ describe('SqlDriver Field.date is a tz-naive calendar day (ADR-0053 Phase 1)', (
 
     // Read-side repair: the returned value is date-only with no migration.
     const row = await driver.findOne('deal', { where: { id: 'legacy' } }, { bypassTenantAudit: true });
+    assert(row !== null, 'findOne answered the not-found arm for a seeded id');
     expect(row.close_date).toBe('2026-08-15');
 
     // …but the value still stored in SQL keeps its time, so a SQL equality