fix: seed test settings.json from .vscode-test.mjs

Move the python.useEnvironmentsExtension=true seed into the test
config so local 'npm run smoke-test' / e2e / integration runs match
CI. Without it the extension short-circuits during activation and
registration tests fail. Drops the duplicated CI step and helper.

Author: eleanorjboyd

.github/workflows/pr-check.yml

@@ -151,9 +151,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run Smoke Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1
@@ -241,9 +238,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run E2E Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1
@@ -331,9 +325,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run Integration Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1
@@ -378,9 +369,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run Integration Tests Multi-Root (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1

.github/workflows/push-check.yml

@@ -152,9 +152,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run Smoke Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1
@@ -242,9 +239,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run E2E Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1
@@ -332,9 +326,6 @@ jobs:
       - name: Compile Tests
         run: npm run compile-tests
 
-      - name: Configure Test Settings
-        run: node build/setup-test-user-data.mjs
-
       - name: Run Integration Tests (Linux)
         if: runner.os == 'Linux'
         uses: GabrielBB/xvfb-action@v1

.vscode-test.mjs

@@ -1,13 +1,23 @@
 import { defineConfig } from '@vscode/test-cli';
+import * as fs from 'fs';
 import * as os from 'os';
 import * as path from 'path';
 
 // Keep this path short: macOS caps Unix-domain socket paths at 103 chars and
 // VS Code creates `<userDataDir>/<x.y>-main.sock`. An in-workspace location
 // (e.g. /Users/runner/work/<repo>/<repo>/.vscode-test/user-data) overflows.
-// Must match build/setup-test-user-data.mjs.
 const userDataDir = path.join(os.tmpdir(), 'vsct-ud');
 
+// Seed user settings.json so the extension actually activates: without
+// `python.useEnvironmentsExtension=true` it short-circuits during activation
+// and the smoke/e2e/integration tests see no registered managers.
+const userDir = path.join(userDataDir, 'User');
+fs.mkdirSync(userDir, { recursive: true });
+fs.writeFileSync(
+    path.join(userDir, 'settings.json'),
+    JSON.stringify({ 'python.useEnvironmentsExtension': true }) + '\n',
+);
+
 export default defineConfig([
     {
         label: 'smokeTests',