feat: Update test-apps for TimeSafari integration with Endorser.ch API patterns

- Add comprehensive configuration system with timesafari-config.json
- Create shared config-loader.ts with TypeScript interfaces and mock services
- Update Android test app to use TimeSafari community notification patterns
- Update iOS test app with rolling window and community features
- Update Electron test app with desktop-specific TimeSafari integration
- Enhance test API server to simulate Endorser.ch API endpoints
- Add pagination support with afterId/beforeId parameters
- Implement parallel API requests pattern for offers, projects, people, items
- Add community analytics and notification bundle endpoints
- Update all test app UIs for TimeSafari-specific functionality
- Update README with comprehensive TimeSafari testing guide

All test apps now demonstrate:
- Real Endorser.ch API integration patterns
- TimeSafari community-building features
- Platform-specific optimizations (Android/iOS/Electron)
- Comprehensive error handling and performance monitoring
- Configuration-driven testing with type safety

test-apps/config/timesafari-config.json

@@ -0,0 +1,152 @@
+{
+  "timesafari": {
+    "appId": "app.timesafari.test",
+    "appName": "TimeSafari Test",
+    "version": "1.0.0",
+    "description": "Test app for TimeSafari Daily Notification Plugin integration"
+  },
+  "endorser": {
+    "baseUrl": "http://localhost:3001",
+    "apiVersion": "v2",
+    "endpoints": {
+      "offers": "/api/v2/report/offers",
+      "offersToPlans": "/api/v2/report/offersToPlansOwnedByMe",
+      "plansLastUpdated": "/api/v2/report/plansLastUpdatedBetween",
+      "notificationsBundle": "/api/v2/report/notifications/bundle"
+    },
+    "authentication": {
+      "type": "Bearer",
+      "token": "test-jwt-token-12345",
+      "headers": {
+        "Authorization": "Bearer test-jwt-token-12345",
+        "Content-Type": "application/json",
+        "X-Privacy-Level": "user-controlled"
+      }
+    },
+    "pagination": {
+      "defaultLimit": 50,
+      "maxLimit": 100,
+      "hitLimitThreshold": 50
+    }
+  },
+  "notificationTypes": {
+    "offers": {
+      "enabled": true,
+      "types": [
+        "new_to_me",
+        "changed_to_me", 
+        "new_to_projects",
+        "changed_to_projects",
+        "new_to_favorites",
+        "changed_to_favorites"
+      ]
+    },
+    "projects": {
+      "enabled": true,
+      "types": [
+        "local_new",
+        "local_changed",
+        "content_interest_new",
+        "favorited_changed"
+      ]
+    },
+    "people": {
+      "enabled": true,
+      "types": [
+        "local_new",
+        "local_changed",
+        "content_interest_new",
+        "favorited_changed",
+        "contacts_changed"
+      ]
+    },
+    "items": {
+      "enabled": true,
+      "types": [
+        "local_new",
+        "local_changed",
+        "favorited_changed"
+      ]
+    }
+  },
+  "scheduling": {
+    "contentFetch": {
+      "schedule": "0 8 * * *",
+      "time": "08:00",
+      "description": "8 AM daily - fetch community updates"
+    },
+    "userNotification": {
+      "schedule": "0 9 * * *", 
+      "time": "09:00",
+      "description": "9 AM daily - notify users of community updates"
+    }
+  },
+  "testData": {
+    "userDid": "did:example:testuser123",
+    "starredPlanIds": [
+      "plan-community-garden",
+      "plan-local-food",
+      "plan-sustainability"
+    ],
+    "lastKnownOfferId": "01HSE3R9MAC0FT3P3KZ382TWV7",
+    "lastKnownPlanId": "01HSE3R9MAC0FT3P3KZ382TWV8",
+    "mockOffers": [
+      {
+        "jwtId": "01HSE3R9MAC0FT3P3KZ382TWV7",
+        "handleId": "offer-web-dev-001",
+        "offeredByDid": "did:example:offerer123",
+        "recipientDid": "did:example:testuser123",
+        "objectDescription": "Web development services for community project",
+        "unit": "USD",
+        "amount": 1000,
+        "amountGiven": 500,
+        "amountGivenConfirmed": 250
+      }
+    ],
+    "mockProjects": [
+      {
+        "plan": {
+          "jwtId": "01HSE3R9MAC0FT3P3KZ382TWV8",
+          "handleId": "plan-community-garden",
+          "name": "Community Garden Project",
+          "description": "Building a community garden for local food production",
+          "issuerDid": "did:example:issuer123",
+          "agentDid": "did:example:agent123"
+        },
+        "wrappedClaimBefore": null
+      }
+    ]
+  },
+  "callbacks": {
+    "offers": {
+      "enabled": true,
+      "localHandler": "handleOffersNotification"
+    },
+    "projects": {
+      "enabled": true,
+      "localHandler": "handleProjectsNotification"
+    },
+    "people": {
+      "enabled": true,
+      "localHandler": "handlePeopleNotification"
+    },
+    "items": {
+      "enabled": true,
+      "localHandler": "handleItemsNotification"
+    },
+    "communityAnalytics": {
+      "enabled": true,
+      "endpoint": "http://localhost:3001/api/analytics/community-events",
+      "headers": {
+        "Content-Type": "application/json",
+        "X-Privacy-Level": "aggregated"
+      }
+    }
+  },
+  "observability": {
+    "enableLogging": true,
+    "logLevel": "debug",
+    "enableMetrics": true,
+    "enableHealthChecks": true
+  }
+}