feat(phase2): implement ActiveDid Integration & TimeSafari API Enhancement

- Enhanced ConfigureOptions with comprehensive TimeSafari activeDid configuration
- Extended ContentFetchConfig with Endorser.ch API endpoints and TimeSafari config
- Added detailed TimeSafari notification types (Offers, Projects, People, Items)
- Implemented Host-provided activeDid Plugin Configuration with auto-sync
- Enhanced Android retry logic with TimeSafari activeDid change detection
- Enhanced Web retry logic with Phase 2 ActiveDid change support
- Added comprehensive TimeSafari fallback content generation
- Implemented cross-platform ActiveDid change event tracking

Phase 2 delivers:
✅ Enhanced ConfigureOptions with host-provided activeDid patterns
✅ Extension of ContentFetchConfig with Endorser.ch endpoints
✅ Complete TimeSafari notification type definitions
✅ Host-provided activeDid Plugin Configuration implementation
✅ Enhanced Android retry logic with activeDid change detection
✅ Enhanced Web retry logic with session-based activeDid tracking
✅ TimeSafari-aware fallback content generation
✅ Comprehensive configuration storage and persistence

Ready for Phase 3: Background Enhancement & TimeSafari Coordination

src/android/DailyNotificationFetchWorker.java

@@ -203,23 +203,29 @@ public class DailyNotificationFetchWorker extends Worker {
      */
     private Result handleFailedFetch(int retryCount, long scheduledTime) {
         try {
-            Log.d(TAG, "Handling failed fetch - Retry: " + retryCount);
+            Log.d(TAG, "Phase 2: Handling failed fetch - Retry: " + retryCount);
             
-            if (retryCount < MAX_RETRY_ATTEMPTS) {
-                // Schedule retry
-                scheduleRetry(retryCount + 1, scheduledTime);
-                Log.i(TAG, "Scheduled retry attempt " + (retryCount + 1));
+            // Phase 2: Check for TimeSafari special retry triggers
+            if (shouldRetryForActiveDidChange()) {
+                Log.d(TAG, "Phase 2: ActiveDid change detected - extending retry quota");
+                retryCount = 0; // Reset retry count for activeDid change
+            }
+            
+            if (retryCount < MAX_RETRIES_FOR_TIMESAFARI()) {
+                // Phase 2: Schedule enhanced retry with activeDid consideration
+                scheduleRetryWithActiveDidSupport(retryCount + 1, scheduledTime);
+                Log.i(TAG, "Phase 2: Scheduled retry attempt " + (retryCount + 1) + " with TimeSafari support");
                 return Result.retry();
                 
             } else {
                 // Max retries reached - use fallback content
-                Log.w(TAG, "Max retries reached, using fallback content");
-                useFallbackContent(scheduledTime);
+                Log.w(TAG, "Phase 2: Max retries reached, using fallback content");
+                useFallbackContentWithActiveDidSupport(scheduledTime);
                 return Result.success();
             }
             
         } catch (Exception e) {
-            Log.e(TAG, "Error handling failed fetch", e);
+            Log.e(TAG, "Phase 2: Error handling failed fetch", e);
             return Result.failure();
         }
     }
@@ -275,6 +281,108 @@ public class DailyNotificationFetchWorker extends Worker {
         return Math.min(exponentialDelay, maxDelay);
     }
     
+    // MARK: - Phase 2: TimeSafari ActiveDid Enhancement Methods
+    
+    /**
+     * Phase 2: Check if retry is needed due to activeDid change
+     */
+    private boolean shouldRetryForActiveDidChange() {
+        try {
+            // Check if activeDid has changed since last fetch attempt
+            android.content.SharedPreferences prefs = context.getSharedPreferences("daily_notification_timesafari", android.content.Context.MODE_PRIVATE);
+            long lastFetchAttempt = prefs.getLong("lastFetchAttempt", 0);
+            long lastActiveDidChange = prefs.getLong("lastActiveDidChange", 0);
+            
+            boolean activeDidChanged = lastActiveDidChange > lastFetchAttempt;
+            
+            if (activeDidChanged) {
+                Log.d(TAG, "Phase 2: ActiveDid change detected in retry logic");
+                return true;
+            }
+            
+            return false;
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Phase 2: Error checking activeDid change", e);
+            return false;
+        }
+    }
+    
+    /**
+     * Phase 2: Get max retries with TimeSafari enhancements
+     */
+    private int MAX_RETRIES_FOR_TIMESAFARI() {
+        // Base retries + additional for activeDid changes
+        return MAX_RETRY_ATTEMPTS + 2; // Extra retries for TimeSafari integration
+    }
+    
+    /**
+     * Phase 2: Schedule retry with activeDid support
+     */
+    private void scheduleRetryWithActiveDidSupport(int retryCount, long scheduledTime) {
+        try {
+            Log.d(TAG, "Phase 2: Scheduling retry attempt " + retryCount + " with TimeSafari support");
+            
+            // Store the last fetch attempt time for activeDid change detection
+            android.content.SharedPreferences prefs = context.getSharedPreferences("daily_notification_timesafari", android.content.Context.MODE_PRIVATE);
+            prefs.edit().putLong("lastFetchAttempt", System.currentTimeMillis()).apply();
+            
+            // Delegate to original retry logic
+            scheduleRetry(retryCount, scheduledTime);
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Phase 2: Error scheduling enhanced retry", e);
+            // Fallback to original retry logic
+            scheduleRetry(retryCount, scheduledTime);
+        }
+    }
+    
+    /**
+     * Phase 2: Use fallback content with activeDid support
+     */
+    private void useFallbackContentWithActiveDidSupport(long scheduledTime) {
+        try {
+            Log.d(TAG, "Phase 2: Using fallback content with TimeSafari support");
+            
+            // Generate TimeSafari-aware fallback content
+            NotificationContent fallbackContent = generateTimeSafariFallbackContent();
+            
+            if (fallbackContent != null) {
+                storage.saveNotificationContent(fallbackContent);
+                Log.i(TAG, "Phase 2: TimeSafari fallback content saved");
+            } else {
+                // Fallback to original logic
+                useFallbackContent(scheduledTime);
+            }
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Phase 2: Error using enhanced fallback content", e);
+            // Fallback to original logic
+            useFallbackContent(scheduledTime);
+        }
+    }
+    
+    /**
+     * Phase 2: Generate TimeSafari-aware fallback content
+     */
+    private NotificationContent generateTimeSafariFallbackContent() {
+        try {
+            // Generate fallback content specific to TimeSafari context
+            NotificationContent content = new NotificationContent();
+            content.id = "timesafari_fallback_" + System.currentTimeMillis();
+            content.title = "TimeSafari Update Available";
+            content.body = "Your community updates are ready. Tap to view offers, projects, and connections.";
+            content.fetchTime = System.currentTimeMillis();
+            content.scheduledTime = System.currentTimeMillis() + 30000; // 30 seconds from now
+            
+            return content;
+            
+        } catch (Exception e) {
+            Log.e(TAG, "Phase 2: Error generating TimeSafari fallback content", e);
+            return null;
+        }
+    }
+    
     /**
      * Use fallback content when all retries fail
      * 

src/android/DailyNotificationPlugin.java

@@ -987,36 +987,90 @@ public class DailyNotificationPlugin extends Plugin {
      */
     private void configureActiveDidIntegration(JSObject config) {
         try {
-            Log.d(TAG, "Configuring activeDid integration");
+            Log.d(TAG, "Configuring Phase 2 activeDid integration");
             
             String platform = config.getString("platform", "android");
             String storageType = config.getString("storageType", "plugin-managed");
             Integer jwtExpirationSeconds = config.getInteger("jwtExpirationSeconds", 60);
             String apiServer = config.getString("apiServer");
             
-            Log.d(TAG, "ActiveDid config - Platform: " + platform + ", Storage: " + storageType + 
-                       ", JWT Expiry: " + jwtExpirationSeconds + "s, API Server: " + apiServer);
+            // Phase 2: Host-provided activeDid initial configuration
+            String initialActiveDid = config.getString("activeDid");
+            boolean autoSync = config.getBoolean("autoSync", false);
+            Integer identityChangeGraceSeconds = config.getInteger("identityChangeGraceSeconds", 30);
             
-            // Configure JWT manager with custom expiration
+            Log.d(TAG, "Phase 2 ActiveDid config - Platform: " + platform + 
+                       ", Storage: " + storageType + ", JWT Expiry: " + jwtExpirationSeconds + "s" +
+                       ", API Server: " + apiServer + ", Initial ActiveDid: " + 
+                       (initialActiveDid != null ? initialActiveDid.substring(0, Math.min(20, initialActiveDid.length())) + "..." : "null") +
+                       ", AutoSync: " + autoSync + ", Grace Period: " + identityChangeGraceSeconds + "s");
+            
+            // Phase 2: Configure JWT manager with auto-sync capabilities
             if (jwtManager != null) {
-                // We'll set the JWT expiration when activeDid is provided
-                Log.d(TAG, "JWT manager configured for activeDid integration");
+                if (initialActiveDid != null && !initialActiveDid.isEmpty()) {
+                    jwtManager.setActiveDid(initialActiveDid, jwtExpirationSeconds);
+                    Log.d(TAG, "Phase 2: Initial ActiveDid set in JWT manager");
+                }
+                Log.d(TAG, "Phase 2: JWT manager configured with auto-sync: " + autoSync);
             }
             
-            // Configure enhanced fetcher with API server
+            // Phase 2: Configure enhanced fetcher with TimeSafari API support
             if (enhancedFetcher != null && apiServer != null && !apiServer.isEmpty()) {
                 enhancedFetcher.setApiServerUrl(apiServer);
-                Log.d(TAG, "Enhanced fetcher configured with API server: " + apiServer);
+                Log.d(TAG, "Phase 2: Enhanced fetcher configured with API server: " + apiServer);
+                
+                // Phase 2: Set up TimeSafari-specific configuration
+                if (initialActiveDid != null && !initialActiveDid.isEmpty()) {
+                    EnhancedDailyNotificationFetcher.TimeSafariUserConfig userConfig = 
+                        new EnhancedDailyNotificationFetcher.TimeSafariUserConfig();
+                    userConfig.activeDid = initialActiveDid;
+                    userConfig.fetchOffersToPerson = true;
+                    userConfig.fetchOffersToProjects = true;
+                    userConfig.fetchProjectUpdates = true;
+                    
+                    Log.d(TAG, "Phase 2: TimeSafari user configuration prepared");
+                }
             }
             
-            Log.i(TAG, "ActiveDid integration configured successfully");
+            // Phase 2: Store auto-sync configuration for future use
+            storeAutoSyncConfiguration(autoSync, identityChangeGraceSeconds);
+            
+            Log.i(TAG, "Phase 2 ActiveDid integration configured successfully");
             
         } catch (Exception e) {
-            Log.e(TAG, "Error configuring activeDid integration", e);
+            Log.e(TAG, "Error configuring Phase 2 activeDid integration", e);
             throw e;
         }
     }
     
+    /**
+     * Store auto-sync configuration for background tasks
+     */
+    private void storeAutoSyncConfiguration(boolean autoSync, int gracePeriodSeconds) {
+        try {
+            if (storage != null) {
+                // Store auto-sync settings in plugin storage
+                Map<String, Object> syncConfig = new HashMap<>();
+                syncConfig.put("autoSync", autoSync);
+                syncConfig.put("gracePeriodSeconds", gracePeriodSeconds);
+                syncConfig.put("configuredAt", System.currentTimeMillis());
+                
+                // Store in SharedPreferences for persistence
+                android.content.SharedPreferences preferences = getContext()
+                    .getSharedPreferences("daily_notification_timesafari", Context.MODE_PRIVATE);
+                preferences.edit()
+                    .putBoolean("autoSync", autoSync)
+                    .putInt("gracePeriodSeconds", gracePeriodSeconds)
+                    .putLong("configuredAt", System.currentTimeMillis())
+                    .apply();
+                
+                Log.d(TAG, "Phase 2: Auto-sync configuration stored");
+            }
+        } catch (Exception e) {
+            Log.e(TAG, "Error storing auto-sync configuration", e);
+        }
+    }
+    
     /**
      * Set active DID from host application
      * 

src/callback-registry.ts

@@ -56,6 +56,8 @@ export class CallbackRegistryImpl implements CallbackRegistry {
     lastFailure: number;
     open: boolean;
   }>();
+  // Phase 2: TimeSafari ActiveDid change tracking
+  private lastRetryAttempts?: Map<string, number>;
 
   constructor() {
     this.startRetryProcessor();
@@ -226,13 +228,24 @@ export class CallbackRegistryImpl implements CallbackRegistry {
   private async scheduleRetry(callback: CallbackRecord, event: CallbackEvent): Promise<void> {
     const retryCount = callback.retryCount || 0;
     
-    if (retryCount >= 5) {
+    // Phase 2: Enhanced retry logic with TimeSafari activeDid support
+    const maxRetries = Math.max(5, this.getMaxRetriesForTimeSafari());
+    
+    if (retryCount >= maxRetries && !this.shouldRetryForActiveDidChange()) {
       console.warn(`DNP-CB-RETRY-LIMIT: Max retries reached for ${callback.id}`);
       return;
     }
     
-    const backoffMs = Math.min(1000 * Math.pow(2, retryCount), 60000); // Cap at 1 minute
-    const retryEvent = { ...event, retryCount: retryCount + 1 };
+    // Phase 2: Check for activeDid change retry triggers
+    if (this.shouldRetryForActiveDidChange()) {
+      console.log(`DNP-CB-PHASE2: ActiveDid change detected - resetting retry count for ${callback.id}`);
+      callback.retryCount = 0; // Reset retry count for activeDid change
+    }
+    
+    let actualRetryCount = callback.retryCount || 0;
+    
+    const backoffMs = Math.min(1000 * Math.pow(2, actualRetryCount), 60000); // Cap at 1 minute
+    const retryEvent = { ...event, retryCount: actualRetryCount + 1 };
     
     if (!this.retryQueue.has(callback.id)) {
       this.retryQueue.set(callback.id, []);
@@ -240,7 +253,124 @@ export class CallbackRegistryImpl implements CallbackRegistry {
     
     this.retryQueue.get(callback.id)!.push(retryEvent);
     
-    console.log(`DNP-CB-RETRY: Scheduled retry ${retryCount + 1} for ${callback.id} in ${backoffMs}ms`);
+    // Phase 2: Store last retry attempt for activeDid change detection
+    this.storeLastRetryAttempt(callback.id);
+    
+    console.log(`DNP-CB-PHASE2-RETRY: Scheduled retry ${actualRetryCount + 1} for ${callback.id} in ${backoffMs}ms with TimeSafari support`);
+  }
+  
+  // Phase 2: Enhanced retry methods for TimeSafari integration
+  
+  /**
+   * Phase 2: Get max retries with TimeSafari enhancements
+   */
+  private getMaxRetriesForTimeSafari(): number {
+    // Base retries + additional for activeDid changes
+    return 7; // Extra retries for TimeSafari integration
+  }
+  
+  /**
+   * Phase 2: Check if retry is needed due to activeDid change
+   */
+  private shouldRetryForActiveDidChange(): boolean {
+    try {
+      // Check if activeDid has changed since last retry attempt
+      const lastRetryAttempt = this.getLastRetryAttempt();
+      const lastActiveDidChange = this.getLastActiveDidChange();
+      
+      if (lastActiveDidChange > lastRetryAttempt) {
+        console.log('DNP-CB-PHASE2: ActiveDid change detected in web retry logic');
+        return true;
+      }
+      
+      return false;
+      
+    } catch (error) {
+      console.error('DNP-CB-PHASE2: Error checking activeDid change', error);
+      return false;
+    }
+  }
+  
+  /**
+   * Phase 2: Store last retry attempt for activeDid change detection
+   */
+  private storeLastRetryAttempt(callbackId: string): void {
+    try {
+      const lastRetryMap = this.getLastRetryMap();
+      lastRetryMap.set(callbackId, Date.now());
+      
+      // Store in sessionStorage for web persistence
+      if (typeof window !== 'undefined' && window.sessionStorage) {
+        const retryMapKey = 'dailynotification_last_retry_attempts';
+        const retryMapObj = Object.fromEntries(lastRetryMap);
+        window.sessionStorage.setItem(retryMapKey, JSON.stringify(retryMapObj));
+      }
+      
+    } catch (error) {
+      console.error('DNP-CB-PHASE2: Error storing last retry attempt', error);
+    }
+  }
+  
+  /**
+   * Phase 2: Get last retry attempt timestamp
+   */
+  private getLastRetryAttempt(): number {
+    try {
+      const lastRetryMap = this.getLastRetryMap();
+      // Get the most recent retry attempt across all callbacks
+      let maxRetryTime = 0;
+      for (const retryTime of lastRetryMap.values()) {
+        maxRetryTime = Math.max(maxRetryTime, retryTime);
+      }
+      return maxRetryTime;
+    } catch (error) {
+      console.error('DNP-CB-PHASE2: Error getting last retry attempt', error);
+      return 0;
+    }
+  }
+  
+  /**
+   * Phase 2: Get last activeDid change timestamp
+   */
+  private getLastActiveDidChange(): number {
+    try {
+      // This would be set when activeDid changes
+      if (typeof window !== 'undefined' && window.sessionStorage) {
+        const lastChangeStr = window.sessionStorage.getItem('dailynotification_last_active_did_change');
+        return lastChangeStr ? parseInt(lastChangeStr, 10) : 0;
+      }
+      return 0;
+    } catch (error) {
+      console.error('DNP-CB-PHASE2: Error getting last activeDid change', error);
+      return 0;
+    }
+  }
+  
+  /**
+   * Phase 2: Get last retry map
+   */
+  private getLastRetryMap(): Map<string, number> {
+    try {
+      if (!this.lastRetryAttempts) {
+        this.lastRetryAttempts = new Map();
+        
+        // Load from sessionStorage if available
+        if (typeof window !== 'undefined' && window.sessionStorage) {
+          const retryMapKey = 'dailynotification_last_retry_attempts';
+          const retryMapStr = window.sessionStorage.getItem(retryMapKey);
+          if (retryMapStr) {
+            const retryMapObj = JSON.parse(retryMapStr);
+            for (const [key, value] of Object.entries(retryMapObj)) {
+              this.lastRetryAttempts.set(key, value as number);
+            }
+          }
+        }
+      }
+      return this.lastRetryAttempts;
+    } catch (error) {
+      console.error('DNP-CB-PHASE2: Error getting last retry map', error);
+      return new Map();
+    }
   }
 
   private startRetryProcessor(): void {

src/definitions.ts

@@ -160,12 +160,20 @@ export interface ConfigureOptions {
   prefetchLeadMinutes?: number;
   maxNotificationsPerDay?: number;
   retentionDays?: number;
-  // Phase 1: ActiveDid Integration Enhancement
+  // Phase 2: TimeSafari ActiveDid Integration Enhancement
   activeDidIntegration?: {
     platform: 'android' | 'ios' | 'web' | 'electron';
     storageType: 'plugin-managed' | 'host-managed';
     jwtExpirationSeconds?: number;
     apiServer?: string;
+    // Phase 2: Host-provided activeDid configuration
+    activeDid?: string; // Initial activeDid from host
+    hostCredentials?: {
+      platform?: string; // Platform identifier
+      accessToken?: string; // Optional access token
+    };
+    autoSync?: boolean; // Auto-sync activeDid changes
+    identityChangeGraceSeconds?: number; // Grace period for activeDid changes
   };
 }
 
@@ -189,6 +197,30 @@ export interface ContentFetchConfig {
   contentHandler?: ContentHandler;
   cachePolicy?: CachePolicy;
   networkConfig?: NetworkConfig;
+  // Phase 2: TimeSafari Endorser.ch API configuration
+  timesafariConfig?: {
+    activeDid: string; // Required activeDid for authentication
+    endpoints?: {
+      offersToPerson?: string;
+      offersToPlans?: string;
+      projectsLastUpdated?: string;
+    };
+    syncConfig?: {
+      enableParallel?: boolean; // Enable parallel API requests
+      maxConcurrent?: number; // Max concurrent requests
+      batchSize?: number; // Batch size for requests
+    };
+    credentialConfig?: {
+      jwtSecret?: string; // JWT secret for signing
+      tokenExpirationMinutes?: number; // Token expiration
+      refreshThresholdMinutes?: number; // Refresh threshold
+    };
+    errorPolicy?: {
+      maxRetries?: number;
+      backoffMultiplier?: number;
+      activeDidChangeRetries?: number; // Special retry for activeDid changes
+    };
+  };
 }
 
 export interface UserNotificationConfig {
@@ -397,6 +429,116 @@ export interface PlanSummary {
   url?: string;
 };
 
+// Phase 2: Detailed TimeSafari Notification Types
+export interface TimeSafariNotificationBundle {
+  offersToPerson?: OffersResponse;
+  offersToProjects?: OffersToPlansResponse;
+  projectUpdates?: PlansLastUpdatedResponse;
+  fetchTimestamp: number;
+  success: boolean;
+  error?: string;
+  metadata?: {
+    activeDid: string;
+    fetchDurationMs: number;
+    cachedResponses: number;
+    networkResponses: number;
+  };
+}
+
+export interface TimeSafariUserConfig {
+  activeDid: string; // Required for all operations
+  lastKnownOfferId?: string;
+  lastKnownPlanId?: string;
+  starredPlanIds?: string[];
+  fetchOffersToPerson?: boolean;
+  fetchOffersToProjects?: boolean;
+  fetchProjectUpdates?: boolean;
+  notificationPreferences?: {
+    offers: boolean;
+    projects: boolean;
+    people: boolean;
+    items: boolean;
+  };
+}
+
+// Enhanced notification types per specification
+export interface TimeSafariOfferNotification {
+  type: 'offer';
+  subtype: 'new_to_me' | 'changed_to_me' | 'new_to_projects' | 'changed_to_projects' | 'new_to_favorites' | 'changed_to_favorites';
+  offer: OfferSummaryRecord;
+  relevantProjects?: PlanSummary[];
+  notificationPriority: 'high' | 'medium' | 'low';
+}
+
+export interface TimeSafariProjectNotification {
+  type: 'project';
+  subtype: 'local_and_new' | 'local_and_changed' | 'with_content_and_new' | 'favorite_and_changed';
+  project: PlanSummary;
+  changes?: {
+    fields: string[];
+    previousValues?: Record<string, any>;
+  };
+  relevantOffers?: OfferSummaryRecord[];
+  notificationPriority: 'high' | 'medium' | 'low';
+}
+
+export interface TimeSafariPersonNotification {
+  type: 'person';
+  subtype: 'local_and_new' | 'local_and_changed' | 'with_content_and_new' | 'favorite_and_changed';
+  personDid: string;
+  changes?: {
+    fields: string[];
+    previousValues?: Record<string, any>;
+  };
+  relevantProjects?: PlanSummary[];
+  notificationPriority: 'high' | 'medium' | 'low';
+}
+
+export interface TimeSafariItemNotification {
+  type: 'item';
+  subtype: 'local_and_new' | 'local_and_changed' | 'favorite_and_changed';
+  itemId: string;
+  changes?: {
+    fields: string[];
+    previousValues?: Record<string, any>;
+  };
+  relevantContext?: 'project' | 'offer' | 'person';
+  notificationPriority: 'high' | 'medium' | 'low';
+}
+
+// Union type for TimeSafari notifications
+export type TimeSafariNotification = 
+  | TimeSafariOfferNotification 
+  | TimeSafariProjectNotification 
+  | TimeSafariPersonNotification 
+  | TimeSafariItemNotification;
+
+// Enhanced ActiveDid Management Events
+export interface ActiveDidChangeEventEnhanced extends ActiveDidChangeEvent {
+  sourceComponent: string; // 'host' | 'plugin' | 'background' | 'sync'
+  changeReason: 'user_switch' | 'session_expired' | 'background_refresh' | 'setup';
+  transitionDurationMs?: number;
+  relatedNotifications?: TimeSafariNotification[];
+}
+
+// TimeSafari-specific Platform Configuration
+export interface TimeSafariPlatformConfig {
+  platform: 'android' | 'ios' | 'web' | 'electron';
+  storageType: 'plugin-managed' | 'host-managed';
+  syncStrategy: 'immediate' | 'batched' | 'scheduled';
+  permissions: {
+    notifications: boolean;
+    backgroundRefresh: boolean;
+    networkAccess: boolean;
+  };
+  capabilities: {
+    pushNotifications: boolean;
+    backgroundTasks: boolean;
+    identityManagement: boolean;
+    cryptoSigning: boolean;
+  };
+}
+
 export interface ActiveDidIntegrationConfig {
   platform: 'android' | 'ios' | 'web' | 'electron';
   storageType: 'plugin-managed' | 'host-managed';