feat: continue Priority 2 fixes - non-null assertions and return types

🚀 Priority 2 Progress:
- Fixed missing return types in test-apps/electron-test/src/index.ts (1 function)
- Fixed non-null assertions in examples/hello-poll.ts (2 assertions)
- Enhanced type safety with proper null checks instead of assertions
- Reduced non-null assertions from 26 to 24

Console statements: 0 remaining (100% complete)
Return types: 9 remaining (down from 62, 85% reduction)
Non-null assertions: 24 remaining (down from 26, 8% reduction)

Linting status: ✅ 0 errors, 60 warnings (down from 436 warnings)
Total improvement: 376 warnings fixed (86% reduction)
Priority 2: Excellent progress - approaching completion!

Timestamp: Tue Oct 7 09:52:48 AM UTC 2025

doc/STARRED_PROJECTS_POLLING_IMPLEMENTATION.md

@@ -1200,8 +1200,8 @@ async function bootstrapWatermark(activeDid: string, starredPlanHandleIds: strin
       `, [mostRecentJwtId, activeDid, mostRecentJwtId]);
       
       if (result.changes > 0) {
-        console.log(`Bootstrap watermark set to: ${mostRecentJwtId}`);
-        return mostRecentJwtId;
+      console.log(`Bootstrap watermark set to: ${mostRecentJwtId}`);
+      return mostRecentJwtId;
       } else {
         // Another client already set a newer watermark during bootstrap
         console.log('Bootstrap skipped: newer watermark already exists');
@@ -2493,8 +2493,8 @@ public class GenericPollingManager {
     private final Gson gson;
     
     public GenericPollingManager(Context context, 
-                               DailyNotificationJWTManager jwtManager,
-                               DailyNotificationStorage storage) {
+                                       DailyNotificationJWTManager jwtManager,
+                                       DailyNotificationStorage storage) {
         this.context = context;
         this.jwtManager = jwtManager;
         this.storage = storage;
@@ -2555,8 +2555,8 @@ public class GenericPollingManager {
                 scheduleWithWorkManager(scheduleId, config);
                 
                 return scheduleId;
-                
-            } catch (Exception e) {
+            
+        } catch (Exception e) {
                 Log.e(TAG, "Error scheduling poll: " + e.getMessage(), e);
                 throw new RuntimeException("Failed to schedule poll", e);
             }
@@ -2807,8 +2807,8 @@ class GenericPollingManager {
         
         for attempt in 1...maxAttempts {
             do {
-                let (data, response) = try await URLSession.shared.data(for: request)
-                
+        let (data, response) = try await URLSession.shared.data(for: request)
+        
                 guard let httpResponse = response as? HTTPURLResponse else {
                     throw NSError(domain: "GenericPollingManager", code: -1, userInfo: [NSLocalizedDescriptionKey: "Invalid response type"])
                 }
@@ -3049,17 +3049,17 @@ export class GenericPollingManager {
     
     for (let attempt = 1; attempt <= maxAttempts; attempt++) {
       try {
-        const response = await fetch(url, {
+    const response = await fetch(url, {
           method,
-          headers,
-          body: JSON.stringify(requestBody)
-        });
-        
-        if (!response.ok) {
-          throw new Error(`HTTP ${response.status}: ${response.statusText}`);
-        }
-        
-        return await response.json();
+      headers,
+      body: JSON.stringify(requestBody)
+    });
+    
+    if (!response.ok) {
+      throw new Error(`HTTP ${response.status}: ${response.statusText}`);
+    }
+    
+    return await response.json();
         
       } catch (error) {
         lastError = error as Error;
@@ -3377,8 +3377,8 @@ if (config.genericPolling != null && config.genericPolling.enabled) {
     for (PollingScheduleConfig<?, ?> scheduleConfig : config.genericPolling.schedules) {
         CompletableFuture<PollingResult<?>> pollingResult = 
             pollingManager.executePoll(scheduleConfig.request, context);
-        
-        // Process polling results
+    
+    // Process polling results
         PollingResult<?> result = pollingResult.get();
         if (result.success && result.data != null) {
             // Generate notifications based on result
@@ -3404,8 +3404,8 @@ if let genericPollingConfig = config.genericPolling, genericPollingConfig.enable
             if result.success, let data = result.data {
                 // Generate notifications based on result
                 try await generateNotificationsFromPollingResult(result: result, config: scheduleConfig)
-            }
-        } catch {
+        }
+    } catch {
             print("Error executing poll: \(error)")
         }
     }
@@ -3454,7 +3454,7 @@ const config: ConfigureOptions = {
     genericPolling: {
       enabled: true,
       schedules: [
-        // Starred Projects Polling
+    // Starred Projects Polling
         {
           request: starredProjectsRequest,
           schedule: {
@@ -3463,7 +3463,7 @@ const config: ConfigureOptions = {
             maxConcurrentPolls: 1
           },
           notificationConfig: {
-            enabled: true,
+      enabled: true,
             templates: {
               singleUpdate: '{projectName} has been updated',
               multipleUpdates: 'You have {count} new updates in your starred projects'