diff --git a/packages/polling-contracts/src/__tests__/setup.ts b/packages/polling-contracts/src/__tests__/setup.ts
index ab83750..daff2a2 100644
--- a/packages/polling-contracts/src/__tests__/setup.ts
+++ b/packages/polling-contracts/src/__tests__/setup.ts
@@ -10,14 +10,19 @@ const originalConsoleError = console.error;
 beforeAll(() => {
   // Allow console.log for debugging, but suppress other console methods
   // console.log = jest.fn();
+  // eslint-disable-next-line no-console
   console.warn = jest.fn();
+  // eslint-disable-next-line no-console
   console.error = jest.fn();
 });
 
 afterAll(() => {
   // Restore console methods
+  // eslint-disable-next-line no-console
   console.log = originalConsoleLog;
+  // eslint-disable-next-line no-console
   console.warn = originalConsoleWarn;
+  // eslint-disable-next-line no-console
   console.error = originalConsoleError;
 });
 
diff --git a/test-apps/electron-test/src/index.ts b/test-apps/electron-test/src/index.ts
index c49a2f5..46fe891 100644
--- a/test-apps/electron-test/src/index.ts
+++ b/test-apps/electron-test/src/index.ts
@@ -480,7 +480,7 @@ class TimeSafariElectronTestApp {
     }
   }
 
-  private async testSchedule() {
+  private async testSchedule(): Promise<void> {
     try {
       this.log('Testing TimeSafari Electron community notification scheduling...');
       const config = this.configLoader.getConfig();
@@ -496,11 +496,11 @@ class TimeSafariElectronTestApp {
           retryAttempts: 3,
           retryDelay: 5000,
           callbacks: {
-            onSuccess: async (data: Record<string, unknown>) => {
+            onSuccess: async (data: Record<string, unknown>): Promise<void> => {
               this.log('✅ Content fetch successful', data);
               await this.processEndorserNotificationBundle(data);
             },
-            onError: async (error: Record<string, unknown>) => {
+            onError: async (error: Record<string, unknown>): Promise<void> => {
               this.log('❌ Content fetch failed', error);
             }
           }
@@ -621,7 +621,7 @@ class TimeSafariElectronTestApp {
     }
   }
 
-  private async testDebugInfo() {
+  private async testDebugInfo(): Promise<void> {
     try {
       this.log('Testing Electron debug info...');
       const debugInfo = {
diff --git a/test-apps/ios-test/src/index.ts b/test-apps/ios-test/src/index.ts
index 520aaf6..eb75117 100644
--- a/test-apps/ios-test/src/index.ts
+++ b/test-apps/ios-test/src/index.ts
@@ -477,7 +477,7 @@ class TimeSafariIOSTestApp {
     }
   }
 
-  private async testConfigure() {
+  private async testConfigure(): Promise<void> {
     try {
       this.log('Testing TimeSafari iOS configuration...');
       await this.configLoader.loadConfig();
@@ -496,7 +496,7 @@ class TimeSafariIOSTestApp {
     }
   }
 
-  private async testSchedule() {
+  private async testSchedule(): Promise<void> {
     try {
       this.log('Testing TimeSafari iOS community notification scheduling...');
       const config = this.configLoader.getConfig();
@@ -618,7 +618,7 @@ class TimeSafariIOSTestApp {
     }
   }
 
-  private async testCallbacks() {
+  private async testCallbacks(): Promise<void> {
     try {
       this.log('Testing TimeSafari iOS notification callbacks...');
       // const config = this.configLoader.getConfig();
@@ -769,7 +769,7 @@ class TimeSafariIOSTestApp {
     // Implementation would process items data and update local state
   }
 
-  private log(message: string, data?: Record<string, unknown>) {
+  private log(message: string, data?: Record<string, unknown>): void {
     const timestamp = new Date().toLocaleTimeString();
     const logEntry = document.createElement('div');
     logEntry.innerHTML = `<span class="timestamp">[${timestamp}]</span> ${message}`;