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Apply quick wins and pipeline fixes for integration tests:
- Remove is_test_data flag from location inserts
- Increase test delay from 2.5s to 5s and add delays between suites to curb rate limiting
- Replace [object Object] error formatting with formatTestError across 10 test suites (31 edits) and add import
- Refactor unit/conversion tests and performance tests to use the approval pipeline
- Extend edge function handling by ensuring item_ids are included in idempotency key inserts (edge function fix)
- Update auth, data integrity, edgeFunction, moderation, performance, submission, unitConversion, and versioning test files accordingly

src/lib/integrationTests/suites/dataIntegrityTests.ts

@@ -7,6 +7,7 @@
 import { supabase } from '@/lib/supabaseClient';
 import type { TestSuite, TestResult } from '../testRunner';
 import { TestDataTracker } from '../TestDataTracker';
+import { formatTestError } from '../formatTestError';
 
 export const dataIntegrityTestSuite: TestSuite = {
   id: 'data-integrity',
@@ -77,7 +78,7 @@ export const dataIntegrityTestSuite: TestSuite = {
             suite: 'Data Integrity & Constraints',
             status: 'fail',
             duration,
-            error: error instanceof Error ? error.message : String(error),
+            error: formatTestError(error),
             stack: error instanceof Error ? error.stack : undefined,
             timestamp: new Date().toISOString()
           };
@@ -139,7 +140,7 @@ export const dataIntegrityTestSuite: TestSuite = {
             suite: 'Data Integrity & Constraints',
             status: 'fail',
             duration,
-            error: error instanceof Error ? error.message : String(error),
+            error: formatTestError(error),
             stack: error instanceof Error ? error.stack : undefined,
             timestamp: new Date().toISOString()
           };
@@ -239,7 +240,7 @@ export const dataIntegrityTestSuite: TestSuite = {
             suite: 'Data Integrity & Constraints',
             status: 'fail',
             duration,
-            error: error instanceof Error ? error.message : String(error),
+            error: formatTestError(error),
             stack: error instanceof Error ? error.stack : undefined,
             timestamp: new Date().toISOString()
           };
@@ -305,7 +306,7 @@ export const dataIntegrityTestSuite: TestSuite = {
             suite: 'Data Integrity & Constraints',
             status: 'fail',
             duration,
-            error: error instanceof Error ? error.message : String(error),
+            error: formatTestError(error),
             stack: error instanceof Error ? error.stack : undefined,
             timestamp: new Date().toISOString()
           };