refactor(cursor-rules): restructure rules architecture with meta-rule system

- Reorganize cursor rules into logical domain-based directories
- Implement meta-rule system for workflow-specific rule bundling
- Move core rules to dedicated /core directory
- Consolidate development rules under /development namespace
- Add architectural patterns and implementation examples
- Create workflow-specific meta-rules for common development tasks
- Remove deprecated standalone rule files
- Update package dependencies for new rule structure

BREAKING CHANGE: Cursor rules file structure has been reorganized
Files moved from root rules directory to domain-specific subdirectories

.cursor/rules/app/architectural_patterns.mdc

@@ -0,0 +1,214 @@
+# Time Safari Architecture — Patterns and Examples
+
+> **Agent role**: Reference this file for architectural patterns and
+> examples when working with TimeSafari architecture design.
+
+## Architectural Patterns
+
+### Factory Pattern Implementation
+
+```typescript
+// PlatformServiceFactory.ts
+export class PlatformServiceFactory {
+  private static instance: PlatformServiceFactory;
+
+  static getInstance(): PlatformServiceFactory {
+    if (!PlatformServiceFactory.instance) {
+      PlatformServiceFactory.instance = new PlatformServiceFactory();
+    }
+    return PlatformServiceFactory.instance;
+  }
+
+  getQRScannerService(): QRScannerService {
+    const platform = process.env.VITE_PLATFORM;
+
+    switch (platform) {
+      case 'web':
+        return new WebInlineQRScanner();
+      case 'capacitor':
+        return new CapacitorQRScanner();
+      case 'electron':
+        return new ElectronQRScanner();
+      default:
+        throw new Error(`Unsupported platform: ${platform}`);
+    }
+  }
+}
+```
+
+### Service Interface Definition
+
+```typescript
+// interfaces/QRScannerService.ts
+export interface QRScannerService {
+  startScanning(): Promise<void>;
+  stopScanning(): Promise<void>;
+  addListener(event: string, callback: Function): void;
+  removeListener(event: string, callback: Function): void;
+}
+```
+
+### Platform-Specific Implementation
+
+```typescript
+// services/QRScanner/WebInlineQRScanner.ts
+export class WebInlineQRScanner implements QRScannerService {
+  private listeners: Map<string, Function[]> = new Map();
+
+  async startScanning(): Promise<void> {
+    // Web-specific implementation
+    const stream = await navigator.mediaDevices.getUserMedia({ video: true });
+    // Process video stream for QR codes
+  }
+
+  async stopScanning(): Promise<void> {
+    // Stop video stream
+  }
+
+  addListener(event: string, callback: Function): void {
+    if (!this.listeners.has(event)) {
+      this.listeners.set(event, []);
+    }
+    this.listeners.get(event)!.push(callback);
+  }
+
+  removeListener(event: string, callback: Function): void {
+    const callbacks = this.listeners.get(event);
+    if (callbacks) {
+      const index = callbacks.indexOf(callback);
+      if (index > -1) {
+        callbacks.splice(index, 1);
+      }
+    }
+  }
+}
+```
+
+## Deep Linking Implementation
+
+### URL Format
+
+```
+timesafari://<route>[/<param>][?query=value]
+```
+
+### Web Implementation
+
+```typescript
+// router/index.ts
+router.beforeEach((to, from, next) => {
+  // Parse deep link parameters
+  if (to.query.deepLink) {
+    const deepLink = to.query.deepLink as string;
+    // Process deep link
+    handleDeepLink(deepLink);
+  }
+  next();
+});
+
+function handleDeepLink(deepLink: string) {
+  // Parse and route deep link
+  const url = new URL(deepLink);
+  const route = url.pathname;
+  const params = url.searchParams;
+
+  // Navigate to appropriate route
+  router.push({ name: route, query: Object.fromEntries(params) });
+}
+```
+
+### Capacitor Implementation
+
+```typescript
+// main.capacitor.ts
+import { App } from '@capacitor/app';
+
+App.addListener('appUrlOpen', (data) => {
+  const url = data.url;
+  // Parse deep link and navigate
+  handleDeepLink(url);
+});
+```
+
+## Platform Detection
+
+### Feature Detection vs Platform Detection
+
+```typescript
+// ✅ Good: Feature detection
+function hasCameraAccess(): boolean {
+  return 'mediaDevices' in navigator &&
+         'getUserMedia' in navigator.mediaDevices;
+}
+
+// ❌ Bad: Platform detection
+function isWeb(): boolean {
+  return process.env.VITE_PLATFORM === 'web';
+}
+```
+
+### Conditional Imports
+
+```typescript
+// services/platforms/index.ts
+export async function getPlatformService() {
+  const platform = process.env.VITE_PLATFORM;
+
+  switch (platform) {
+    case 'capacitor':
+      const { CapacitorPlatformService } =
+        await import('./CapacitorPlatformService');
+      return new CapacitorPlatformService();
+    case 'electron':
+      const { ElectronPlatformService } =
+        await import('./ElectronPlatformService');
+      return new ElectronPlatformService();
+    default:
+      const { WebPlatformService } =
+        await import('./WebPlatformService');
+      return new WebPlatformService();
+  }
+}
+```
+
+---
+
+**See also**:
+
+- `.cursor/rules/app/architectural_decision_record.mdc` for core
+  architecture principles
+- `.cursor/rules/app/architectural_implementation.mdc` for
+  implementation details
+- `.cursor/rules/app/architectural_examples.mdc` for examples and
+  testing patterns
+
+**Status**: Active patterns and examples
+**Priority**: Medium
+**Estimated Effort**: Ongoing reference
+**Dependencies**: architectural_decision_record.mdc,
+  architectural_implementation.mdc
+**Stakeholders**: Development team, Architecture team
+
+## Model Implementation Checklist
+
+### Before Architectural Patterns
+
+- [ ] **Pattern Selection**: Choose appropriate architectural pattern for the use
+  case
+- [ ] **Platform Analysis**: Identify platform-specific requirements
+- [ ] **Service Planning**: Plan service structure and dependencies
+- [ ] **Testing Strategy**: Plan testing approach for the pattern
+
+### During Architectural Patterns
+
+- [ ] **Pattern Implementation**: Implement chosen architectural pattern
+- [ ] **Platform Abstraction**: Use platform abstraction layers appropriately
+- [ ] **Service Composition**: Compose services using dependency injection
+- [ ] **Interface Design**: Provide clear interfaces and contracts
+
+### After Architectural Patterns
+
+- [ ] **Pattern Validation**: Verify pattern is implemented correctly
+- [ ] **Platform Testing**: Test across all target platforms
+- [ ] **Service Testing**: Test service composition and dependencies
+- [ ] **Documentation**: Update architectural patterns documentation