fix: resolve CI test failures and timeouts

- Update Bun version in CI to match local version (1.2.16)
- Add bunfig.toml with 5s test timeout to prevent hanging tests
- Mock setTimeout globally in test setup to avoid timing issues
- Add NODE_ENV check to skip delays during tests
- Fix missing exports in config-encryption mock
- Remove retryDelay in tests to ensure immediate execution

These changes ensure tests run consistently between local and CI environments

src/lib/gitea-enhanced.ts

@@ -157,9 +157,11 @@ export async function getOrCreateGiteaOrgEnhanced({
             console.log(`[Org Creation] Organization creation failed due to duplicate. Will retry check.`);
             
             // Wait before retry with exponential backoff
-            const delay = retryDelay * Math.pow(2, attempt);
+            const delay = process.env.NODE_ENV === 'test' ? 0 : retryDelay * Math.pow(2, attempt);
             console.log(`[Org Creation] Waiting ${delay}ms before retry...`);
-            await new Promise(resolve => setTimeout(resolve, delay));
+            if (delay > 0) {
+              await new Promise(resolve => setTimeout(resolve, delay));
+            }
             continue; // Retry the loop
           }
         }