fix lint and knip: unused imports/exports, conflict marker, formatting

- Unexport TestProjectOptions and LocalAppContextOutput (only used internally)
- Remove unused imports: yarnLockfile, pnpmLockfile, pnpmWorkspaceFile,
  captureOutput, AppConfiguration
- Fix import order for project.js in app.test-data.ts
- Remove orphaned <<<<<<< HEAD conflict marker in loader.test.ts
- Remove extra blank line in context.test.ts

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: ryancbahan

packages/app/src/cli/models/app/app.test-data.ts

@@ -77,11 +77,11 @@ import {AppProxySpecIdentifier} from '../extensions/specifications/app_config_ap
 import {ExtensionSpecification} from '../extensions/specification.js'
 import {AppLogsOptions} from '../../services/app-logs/utils.js'
 import {AppLogsSubscribeMutationVariables} from '../../api/graphql/app-management/generated/app-logs-subscribe.js'
+import {Project} from '../project/project.js'
 import {Session} from '@shopify/cli-kit/node/session'
 import {vi} from 'vitest'
 import {joinPath} from '@shopify/cli-kit/node/path'
 import {PackageManager} from '@shopify/cli-kit/node/node-package-manager'
-import {Project} from '../project/project.js'
 
 export const DEFAULT_CONFIG = {
   path: '/tmp/project/shopify.app.toml',
@@ -151,7 +151,7 @@ export function testAppWithConfig(options?: TestAppWithConfigOptions): AppLinked
   return app
 }
 
-export interface TestProjectOptions {
+interface TestProjectOptions {
   directory?: string
   packageManager?: PackageManager
   nodeDependencies?: Record<string, string>

packages/app/src/cli/models/app/loader.test.ts

@@ -24,13 +24,7 @@ import {WebhooksSchema} from '../extensions/specifications/app_config_webhook_sc
 import {WebhooksConfig} from '../extensions/specifications/types/app_config_webhook.js'
 import {Flag} from '../../utilities/developer-platform-client.js'
 import {describe, expect, beforeEach, afterEach, beforeAll, test, vi} from 'vitest'
-import {
-  installNodeModules,
-  yarnLockfile,
-  pnpmLockfile,
-  PackageJson,
-  pnpmWorkspaceFile,
-} from '@shopify/cli-kit/node/node-package-manager'
+import {installNodeModules, PackageJson} from '@shopify/cli-kit/node/node-package-manager'
 import {inTemporaryDirectory, moveFile, mkdir, mkTmpDir, rmdir, writeFile} from '@shopify/cli-kit/node/fs'
 import {joinPath, dirname, cwd, normalizePath} from '@shopify/cli-kit/node/path'
 import {platformAndArch} from '@shopify/cli-kit/node/os'
@@ -39,7 +33,6 @@ import {zod} from '@shopify/cli-kit/node/schema'
 import colors from '@shopify/cli-kit/node/colors'
 import {showMultipleCLIWarningIfNeeded} from '@shopify/cli-kit/node/multiple-installation-warning'
 import {AbortError} from '@shopify/cli-kit/node/error'
-import {captureOutput} from '@shopify/cli-kit/node/system'
 
 vi.mock('../../services/local-storage.js')
 // Mock captureOutput to prevent executing `npm prefix` inside getPackageManager

packages/app/src/cli/services/app-context.ts

@@ -146,7 +146,7 @@ async function logMetadata(app: {apiKey: string}, organization: Organization, re
   }))
 }
 
-export interface LocalAppContextOutput {
+interface LocalAppContextOutput {
   app: AppInterface
   project: Project
 }