fix(insomnia-test): use import.meta.dirname instead of __dirname in ESM specs

insomnia-test is "type": "module", so __dirname is undefined and
`playwright test --list` collected 0 tests, failing the Shard Matrix job.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

packages/insomnia-test/tests/document/custom-lint-ruleset/custom-lint-ruleset.spec.ts

@@ -9,8 +9,8 @@ import { test } from "../../../misc/fixtures";
 import { Collection } from "../../../models/collection";
 import { Project } from "../../../models/project";
 
-const VALID_RULESET = path.join(__dirname, "custom.spectral.yaml");
-const INVALID_RULESET = path.join(__dirname, "invalid.spectral.yaml");
+const VALID_RULESET = path.join(import.meta.dirname, "custom.spectral.yaml");
+const INVALID_RULESET = path.join(import.meta.dirname, "invalid.spectral.yaml");
 
 test("Verify Custom Spectral Ruleset Upload, Removal, And Rejection Of An Invalid Ruleset", async ({
   user,

packages/insomnia-test/tests/document/unit-test-suite/unit-test-suite.spec.ts

@@ -9,7 +9,7 @@ import { test } from "../../../misc/fixtures";
 import { Project } from "../../../models/project";
 
 const UNIT_TEST_FIXTURE = fs.readFileSync(
-  path.join(__dirname, "unit-test.yaml"),
+  path.join(import.meta.dirname, "unit-test.yaml"),
   "utf8",
 );
 

packages/insomnia-test/tests/runner/upload-data-csv-edge-cases/upload-data-csv-edge-cases.spec.ts

@@ -36,7 +36,7 @@ test("Verify a quoted CSV field containing a comma is uploaded as a single value
   });
 
   const result = await workspaceFlow.run(collection, {
-    dataFilePath: path.join(__dirname, "quoted-comma.csv"),
+    dataFilePath: path.join(import.meta.dirname, "quoted-comma.csv"),
   });
 
   expect(result.testResultCount).toEqual({ passed: 1, total: 1 });
@@ -65,7 +65,7 @@ test("Verify escaped double quotes inside a quoted CSV field are unescaped to a
   });
 
   const result = await workspaceFlow.run(collection, {
-    dataFilePath: path.join(__dirname, "escaped-quotes.csv"),
+    dataFilePath: path.join(import.meta.dirname, "escaped-quotes.csv"),
   });
 
   expect(result.testResultCount).toEqual({ passed: 1, total: 1 });
@@ -101,7 +101,7 @@ test("Verify a CSV row with fewer cells than the header defaults the missing tra
   });
 
   const result = await workspaceFlow.run(collection, {
-    dataFilePath: path.join(__dirname, "missing-trailing-cell.csv"),
+    dataFilePath: path.join(import.meta.dirname, "missing-trailing-cell.csv"),
   });
 
   expect(result.testResultCount).toEqual({
@@ -134,7 +134,7 @@ test("Verify a newline inside a quoted CSV field is preserved as part of a singl
   });
 
   const result = await workspaceFlow.run(collection, {
-    dataFilePath: path.join(__dirname, "newline-in-quoted-field.csv"),
+    dataFilePath: path.join(import.meta.dirname, "newline-in-quoted-field.csv"),
   });
 
   expect(result.testResultCount).toEqual({ passed: 1, total: 1 });
@@ -164,7 +164,7 @@ test("Verify a trailing blank line in the CSV file does not produce an extra bog
   });
 
   const result = await workspaceFlow.run(collection, {
-    dataFilePath: path.join(__dirname, "trailing-blank-line.csv"),
+    dataFilePath: path.join(import.meta.dirname, "trailing-blank-line.csv"),
   });
 
   expect(result.testResultCount).toEqual({ passed: 1, total: 1 });

packages/insomnia-test/tests/runner/upload-data-driven-iteration/upload-data-driven-iteration.spec.ts

@@ -10,7 +10,7 @@ import { Collection } from "../../../models/collection";
 import { Project } from "../../../models/project";
 
 const url = `${HTTP_SERVER}/post`;
-const dataFilePath = path.join(__dirname, "runner-data.json");
+const dataFilePath = path.join(import.meta.dirname, "runner-data.json");
 const expectedGreetings = ["hello", "bonjour", "hola"];
 
 test("Verify Uploaded Data File Drives Runner Iterations", async ({ user }) => {