diff --git a/tests/setup/custom-matchers.ts b/tests/setup/custom-matchers.ts
deleted file mode 100644
index b8416acaf..000000000
--- a/tests/setup/custom-matchers.ts
+++ /dev/null
@@ -1,195 +0,0 @@
-/**
- * Custom Jest Matchers for OrangeCat
- * Extended matchers for better testing experience
- *
- * Created: 2025-09-24
- * Last Modified: 2025-09-24
- * Last Modified Summary: Custom Jest matchers for comprehensive testing
- */
-
-import { expect } from '@jest/globals';
-
-/**
- * Custom matcher to check if a value is a valid Bitcoin address
- */
-expect.extend({
-  toBeValidBitcoinAddress(received: string) {
-    const bitcoinAddressRegex = /^(bc1|[13])[a-zA-HJ-NP-Z0-9]{25,39}$/;
-
-    const pass = typeof received === 'string' && bitcoinAddressRegex.test(received);
-
-    return {
-      message: () => `expected ${received} to be a valid Bitcoin address`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a value is a valid email
-   */
-  toBeValidEmail(received: string) {
-    const emailRegex = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
-
-    const pass = typeof received === 'string' && emailRegex.test(received);
-
-    return {
-      message: () => `expected ${received} to be a valid email address`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a value is a valid UUID
-   */
-  toBeValidUUID(received: string) {
-    const uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;
-
-    const pass = typeof received === 'string' && uuidRegex.test(received);
-
-    return {
-      message: () => `expected ${received} to be a valid UUID`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a value is a valid URL
-   */
-  toBeValidUrl(received: string) {
-    try {
-      new URL(received);
-      return {
-        message: () => `expected ${received} to be a valid URL`,
-        pass: true
-      };
-    } catch {
-      return {
-        message: () => `expected ${received} to be a valid URL`,
-        pass: false
-      };
-    }
-  },
-
-  /**
-   * Custom matcher to check if an object has required properties
-   */
-  toHaveRequiredProperties(received: any, requiredProps: string[]) {
-    const missingProps = requiredProps.filter(prop => !(prop in received));
-
-    const pass = missingProps.length === 0;
-
-    return {
-      message: () => `expected ${JSON.stringify(received)} to have required properties: ${requiredProps.join(', ')}${missingProps.length > 0 ? ` (missing: ${missingProps.join(', ')})` : ''}`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a string contains HTML
-   */
-  toContainHtml(received: string) {
-    const htmlRegex = /<[^>]*>/;
-
-    const pass = typeof received === 'string' && htmlRegex.test(received);
-
-    return {
-      message: () => `expected ${received} to contain HTML`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a string is sanitized (no dangerous HTML)
-   */
-  toBeSanitized(received: string) {
-    const dangerousPatterns = [
-      /<script[^>]*>.*?<\/script>/gi,
-      /<iframe[^>]*>.*?<\/iframe>/gi,
-      /javascript:/gi,
-      /on\w+\s*=/gi,
-      /<object[^>]*>.*?<\/object>/gi,
-      /<embed[^>]*>.*?<\/embed>/gi
-    ];
-
-    const hasDangerousContent = dangerousPatterns.some(pattern => pattern.test(received));
-
-    const pass = !hasDangerousContent;
-
-    return {
-      message: () => `expected ${received} to be sanitized HTML`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a number is within a range
-   */
-  toBeWithinRange(received: number, min: number, max: number) {
-    const pass = received >= min && received <= max;
-
-    return {
-      message: () => `expected ${received} to be within range ${min} - ${max}`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if an array contains objects with specific properties
-   */
-  toContainObjectsWith(received: any[], requiredProps: string[]) {
-    const pass = Array.isArray(received) && received.every(item =>
-      typeof item === 'object' && item !== null &&
-      requiredProps.every(prop => prop in item)
-    );
-
-    return {
-      message: () => `expected ${JSON.stringify(received)} to contain objects with properties: ${requiredProps.join(', ')}`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if a response is successful
-   */
-  toBeSuccessfulResponse(received: any) {
-    const pass = received && typeof received === 'object' &&
-                 'ok' in received && received.ok === true;
-
-    return {
-      message: () => `expected ${JSON.stringify(received)} to be a successful response`,
-      pass
-    };
-  },
-
-  /**
-   * Custom matcher to check if an error response is properly formatted
-   */
-  toBeErrorResponse(received: any) {
-    const pass = received && typeof received === 'object' &&
-                 'error' in received && typeof received.error === 'string';
-
-    return {
-      message: () => `expected ${JSON.stringify(received)} to be a properly formatted error response`,
-      pass
-    };
-  }
-});
-
-// Type declarations for TypeScript
-declare global {
-  namespace jest {
-    interface Matchers<R> {
-      toBeValidBitcoinAddress(): R;
-      toBeValidEmail(): R;
-      toBeValidUUID(): R;
-      toBeValidUrl(): R;
-      toHaveRequiredProperties(props: string[]): R;
-      toContainHtml(): R;
-      toBeSanitized(): R;
-      toBeWithinRange(min: number, max: number): R;
-      toContainObjectsWith(props: string[]): R;
-      toBeSuccessfulResponse(): R;
-      toBeErrorResponse(): R;
-    }
-  }
-}