fix: resolve .env from repo root, strip quotes, extend flaky test timeout

- loadDotenv() now resolves .env from the repository root via __dirname
  instead of process.cwd(), matching the old shell script behavior when
  run from ui/desktop
- Strip surrounding quotes from dotenv values so KEY="value" works
- Give flaky tests a 120s timeout so the try/catch handler runs before
  vitest kills the test

Signed-off-by: Douwe Osinga <douwe@squareup.com>

Author: Douwe Osinga

ui/desktop/tests/integration/test_providers.test.ts

@@ -95,7 +95,7 @@ if (flaky.length > 0) {
     } catch (err) {
       console.warn(`Flaky test ${tc.provider}/${tc.model} failed (allowed): ${err}`);
     }
-  });
+  }, 120_000);
 }
 
 if (skipped.length > 0) {

ui/desktop/tests/integration/test_providers_code_exec.test.ts

@@ -67,7 +67,7 @@ if (flaky.length > 0) {
     } catch (err) {
       console.warn(`Flaky test ${tc.provider}/${tc.model} failed (allowed): ${err}`);
     }
-  });
+  }, 120_000);
 }
 
 if (skipped.length > 0) {

ui/desktop/tests/integration/test_providers_lib.ts

@@ -182,8 +182,17 @@ function getProviders(): ProviderConfig[] {
 // Helpers
 // ---------------------------------------------------------------------------
 
+function stripQuotes(s: string): string {
+  if (s.length >= 2 && ((s.startsWith('"') && s.endsWith('"')) || (s.startsWith("'") && s.endsWith("'")))) {
+    return s.slice(1, -1);
+  }
+  return s;
+}
+
 function loadDotenv(): void {
-  const envPath = path.resolve(process.cwd(), '.env');
+  // Resolve .env from the repository root (two levels up from ui/desktop).
+  const repoRoot = path.resolve(__dirname, '..', '..', '..', '..');
+  const envPath = path.join(repoRoot, '.env');
   if (!fs.existsSync(envPath)) return;
   const lines = fs.readFileSync(envPath, 'utf-8').split('\n');
   for (const line of lines) {
@@ -192,7 +201,7 @@ function loadDotenv(): void {
     const eqIdx = trimmed.indexOf('=');
     if (eqIdx === -1) continue;
     const key = trimmed.slice(0, eqIdx);
-    const value = trimmed.slice(eqIdx + 1);
+    const value = stripQuotes(trimmed.slice(eqIdx + 1));
     if (!(key in process.env)) {
       process.env[key] = value;
     }