refactor(core): remove dead exports and relocate test-only machinery

packages/core/package.json

@@ -78,7 +78,6 @@
     "./codex-model-compatibility": "./dist/codex-model-compatibility.js",
     "./llm-connections": "./dist/llm-connections.js",
     "./provider-registry": "./dist/provider-registry.js",
-    "./provider-contract-matrix": "./dist/provider-contract-matrix.js",
     "./model-catalog": "./dist/model-catalog.js",
     "./model-metadata": "./dist/model-metadata.js",
     "./model-web-search": "./dist/model-web-search.js",

packages/core/src/__tests__/additional-permissions.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   compactAdditionalFileSystemPermissions,
   serializeAdditionalPermissionProfile,

packages/core/src/__tests__/capabilities.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   deriveCapabilityReadiness,
   runtimeProbeFromBotReadiness,

packages/core/src/__tests__/computer-use.test.ts

@@ -1,6 +1,6 @@
 import assert from 'node:assert/strict';
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   computerUseApprovalScopeKey,
   computerUseApprovalSummary,

packages/core/src/__tests__/events.test.ts

@@ -1,5 +1,5 @@
 import { test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import { aggregateMessageContents } from '../events.js';
 
 test('aggregates inline references against the combined display text', () => {

packages/core/src/__tests__/health.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   buildHealthSnapshot,
   healthSignalFromCapability,

packages/core/src/__tests__/permission-profile.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   canReadPath,
   canWritePath,

packages/core/src/__tests__/provider-auth.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import { deriveProviderAuthContract } from '../provider-auth.js';
 
 describe('ProviderAuth contract', () => {

packages/core/src/__tests__/runtime-event.test.ts

@@ -1,6 +1,6 @@
 import { describe, test } from 'node:test';
 import assert from 'node:assert/strict';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   decodeMessageContent,
   messageContentsEqual,

packages/core/src/__tests__/sandbox-boundary.test.ts

@@ -1,6 +1,6 @@
 import assert from 'node:assert/strict';
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import {
   applySandboxBoundaryExpansion,
   assessSandboxBoundaryExpansion,

packages/core/src/__tests__/settings.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 import { normalizeSettings } from '../settings.js';
 
 test('normalizes user-approved subagent presets without widening the catalog', () => {

packages/core/src/__tests__/task-submission-readiness.test.ts

@@ -4,7 +4,7 @@ import {
   deriveTaskSubmissionReadiness,
   type DeriveTaskSubmissionReadinessInput,
 } from '../task-submission-readiness.js';
-import { expect } from '../test-helpers.js';
+import { expect } from './test-helpers.js';
 
 describe('task submission readiness', () => {
   test('reuses connection readiness and routes an invalid model to its connection', () => {

packages/core/src/settings/__tests__/sensitive.test.ts

@@ -1,5 +1,5 @@
 import { describe, test } from 'node:test';
-import { expect } from '../../test-helpers.js';
+import { expect } from '../../__tests__/test-helpers.js';
 import { applySensitivePatch, maskSensitive } from '../network-settings.js';
 
 describe('applySensitivePatch', () => {

packages/runtime/src/__tests__/provider-contract-matrix.test.ts

@@ -8,7 +8,7 @@ import {
   type ProviderContractRow,
   type ProviderContractGeneratedCell,
   type ProviderContractWire,
-} from '@maka/core/provider-contract-matrix';
+} from './provider-contract-matrix.js';
 import { PROVIDER_DEFAULTS } from '@maka/core/llm-connections';
 import { generateText, isStepCount, tool } from 'ai';
 import { z } from 'zod';

packages/core/src/provider-contract-matrix.ts → packages/runtime/src/__tests__/provider-contract-matrix.ts

@@ -24,14 +24,14 @@
  * Pure: no IO, no network, no clock. Given the registry it is a total function.
  */
 
-import { lookupModelProviderOverride, openAiAdapterApiProtocol } from './model-metadata.js';
+import { lookupModelProviderOverride, openAiAdapterApiProtocol } from '@maka/core/model-metadata';
 import {
   PROVIDER_REGISTRY,
   type ProviderDefaults,
   type ProviderModelDiscovery,
   type ProviderRuntimeAdapter,
   type ProviderType,
-} from './provider-registry.js';
+} from '@maka/core/provider-registry';
 
 export const PROVIDER_CONTRACT_DIMENSIONS = [
   'discovery',