feat: add Universal Display Augmentation for AI-powered enhanced output

- Implements intelligent display fields with AI-generated titles and descriptions
- Leverages existing IntelligentTypeMatcher for semantic type detection
- Adds lazy computation with LRU caching for zero performance impact
- Enhances CLI with clean, minimal formatting (no visual clutter)
- Provides method-based API (getDisplay()) to avoid namespace conflicts
- Maintains 100% backward compatibility with existing code
- Enables by default with complete isolation architecture
- Includes comprehensive tests and documentation

The augmentation transforms search results and data display with smart,
contextual information while maintaining Soulcraft's clean aesthetic.

tests/display-augmentation.test.ts

@@ -0,0 +1,448 @@
+/**
+ * Universal Display Augmentation Tests
+ * 
+ * Comprehensive test suite for the display augmentation system
+ * including AI-powered field computation, caching, and CLI integration
+ */
+
+import { describe, it, expect, beforeEach, afterEach } from 'vitest'
+import { BrainyData } from '../src/brainyData.js'
+import { UniversalDisplayAugmentation } from '../src/augmentations/universalDisplayAugmentation.js'
+import { DisplayCache } from '../src/augmentations/display/cache.js'
+import { IntelligentComputationEngine } from '../src/augmentations/display/intelligentComputation.js'
+
+describe('Universal Display Augmentation', () => {
+  let brainy: BrainyData
+  let displayAugmentation: UniversalDisplayAugmentation
+
+  beforeEach(async () => {
+    // Use in-memory storage for tests
+    brainy = new BrainyData({
+      storage: { forceMemoryStorage: true },
+      verbose: false
+    })
+    
+    await brainy.init()
+    
+    // Get display augmentation (should be enabled by default)
+    const augmentations = (brainy as any).augmentations
+    displayAugmentation = augmentations?.get('display')
+  })
+
+  afterEach(async () => {
+    if (brainy) {
+      await brainy.clearAll({ force: true })
+    }
+  })
+
+  describe('Augmentation Setup', () => {
+    it('should be enabled by default', () => {
+      expect(displayAugmentation).toBeDefined()
+      expect(displayAugmentation.name).toBe('display')
+      expect(displayAugmentation.version).toBe('1.0.0')
+    })
+
+    it('should have correct metadata access configuration', () => {
+      expect(displayAugmentation.metadata).toEqual({
+        reads: '*',
+        writes: ['_display']
+      })
+    })
+
+    it('should declare computed fields', () => {
+      expect(displayAugmentation.computedFields).toBeDefined()
+      expect(displayAugmentation.computedFields.display).toBeDefined()
+      expect(displayAugmentation.computedFields.display.title).toEqual({
+        type: 'string',
+        description: 'Primary display name (AI-computed)'
+      })
+    })
+
+    it('should have correct operation targeting', () => {
+      expect(displayAugmentation.operations).toContain('get')
+      expect(displayAugmentation.operations).toContain('search')
+      expect(displayAugmentation.operations).toContain('findSimilar')
+    })
+  })
+
+  describe('Display Field Computation', () => {
+    it('should enhance noun results with display fields', async () => {
+      // Add test data
+      const id = await brainy.addNoun('John Doe', {
+        type: 'Person',
+        role: 'CEO',
+        company: 'Acme Corp'
+      })
+
+      // Get the enhanced result
+      const result = await brainy.getNoun(id)
+      
+      // Should have display capabilities
+      expect(result.getDisplay).toBeDefined()
+      expect(typeof result.getDisplay).toBe('function')
+      
+      // Test display fields
+      const displayFields = await result.getDisplay()
+      expect(displayFields).toBeDefined()
+      expect(displayFields.title).toBeDefined()
+      expect(displayFields.type).toBeDefined()
+      expect(displayFields.icon).toBeDefined()
+      expect(displayFields.description).toBeDefined()
+      expect(displayFields.confidence).toBeGreaterThan(0)
+    })
+
+    it('should provide type-appropriate icons', async () => {
+      const testCases = [
+        { data: 'Apple Inc', metadata: { type: 'Organization' }, expectedIcon: '🏢' },
+        { data: 'Jane Smith', metadata: { type: 'Person' }, expectedIcon: '👤' },
+        { data: 'San Francisco', metadata: { type: 'Location' }, expectedIcon: '📍' },
+        { data: 'Machine Learning', metadata: { type: 'Concept' }, expectedIcon: '💭' }
+      ]
+
+      for (const testCase of testCases) {
+        const id = await brainy.addNoun(testCase.data, testCase.metadata)
+        const result = await brainy.getNoun(id)
+        const displayFields = await result.getDisplay()
+        
+        expect(displayFields.icon).toBe(testCase.expectedIcon)
+        expect(displayFields.type).toBeDefined()
+      }
+    })
+
+    it('should handle missing or minimal metadata gracefully', async () => {
+      // Add data with minimal metadata
+      const id = await brainy.addNoun('Some random text')
+      const result = await brainy.getNoun(id)
+      
+      const displayFields = await result.getDisplay()
+      expect(displayFields.title).toBeDefined()
+      expect(displayFields.type).toBeDefined()
+      expect(displayFields.icon).toBeDefined()
+      expect(displayFields.confidence).toBeGreaterThan(0)
+    })
+
+    it('should compute enhanced descriptions', async () => {
+      const id = await brainy.addNoun('Tesla Model 3', {
+        type: 'Product',
+        category: 'Electric Vehicle',
+        manufacturer: 'Tesla'
+      })
+      
+      const result = await brainy.getNoun(id)
+      const displayFields = await result.getDisplay()
+      
+      expect(displayFields.description).toBeDefined()
+      expect(displayFields.description.length).toBeGreaterThan(displayFields.title.length)
+    })
+  })
+
+  describe('Search Result Enhancement', () => {
+    beforeEach(async () => {
+      // Add test data for search
+      await brainy.addNoun('John Doe', { type: 'Person', role: 'CEO' })
+      await brainy.addNoun('Apple Inc', { type: 'Organization', industry: 'Technology' })
+      await brainy.addNoun('MacBook Pro', { type: 'Product', brand: 'Apple' })
+    })
+
+    it('should enhance search results', async () => {
+      const results = await brainy.search('CEO', { limit: 5 })
+      expect(results.length).toBeGreaterThan(0)
+      
+      // Check that results are enhanced
+      const firstResult = results[0]
+      expect(firstResult.getDisplay).toBeDefined()
+      
+      const displayFields = await firstResult.getDisplay()
+      expect(displayFields.title).toBeDefined()
+      expect(displayFields.icon).toBeDefined()
+    })
+
+    it('should maintain search scores while adding display fields', async () => {
+      const results = await brainy.search('Apple', { limit: 5 })
+      expect(results.length).toBeGreaterThan(0)
+      
+      const firstResult = results[0]
+      expect(firstResult.score).toBeDefined()
+      expect(firstResult.getDisplay).toBeDefined()
+    })
+  })
+
+  describe('Verb Display Enhancement', () => {
+    it('should enhance verb relationships with display fields', async () => {
+      // Add entities and relationship
+      const johnId = await brainy.addNoun('John Doe', { type: 'Person' })
+      const appleId = await brainy.addNoun('Apple Inc', { type: 'Organization' })
+      const verbId = await brainy.addVerb(johnId, appleId, 'WorksFor')
+      
+      // Get the enhanced verb
+      const verb = await brainy.getVerb(verbId)
+      expect(verb.getDisplay).toBeDefined()
+      
+      const displayFields = await verb.getDisplay()
+      expect(displayFields.relationship).toBeDefined()
+      expect(displayFields.icon).toBeDefined()
+      expect(displayFields.type).toBeDefined()
+    })
+  })
+
+  describe('Caching System', () => {
+    it('should cache computed display fields', async () => {
+      const id = await brainy.addNoun('Test Entity', { type: 'Concept' })
+      const result = await brainy.getNoun(id)
+      
+      // First computation
+      const displayFields1 = await result.getDisplay()
+      
+      // Second computation should be cached
+      const displayFields2 = await result.getDisplay()
+      
+      // Should be identical (cached)
+      expect(displayFields1).toEqual(displayFields2)
+      
+      // Check cache statistics
+      const stats = displayAugmentation.getStats()
+      expect(stats.totalComputations).toBeGreaterThan(0)
+    })
+
+    it('should provide cache statistics', () => {
+      const stats = displayAugmentation.getStats()
+      expect(stats).toBeDefined()
+      expect(stats.totalComputations).toBeDefined()
+      expect(stats.cacheHitRatio).toBeDefined()
+      expect(stats.averageComputationTime).toBeDefined()
+    })
+  })
+
+  describe('Helper Methods', () => {
+    it('should provide getAvailableFields method', async () => {
+      const id = await brainy.addNoun('Test Entity')
+      const result = await brainy.getNoun(id)
+      
+      expect(result.getAvailableFields).toBeDefined()
+      const fields = result.getAvailableFields('display')
+      expect(Array.isArray(fields)).toBe(true)
+      expect(fields).toContain('title')
+      expect(fields).toContain('description')
+      expect(fields).toContain('type')
+      expect(fields).toContain('icon')
+    })
+
+    it('should provide getAvailableAugmentations method', async () => {
+      const id = await brainy.addNoun('Test Entity')
+      const result = await brainy.getNoun(id)
+      
+      expect(result.getAvailableAugmentations).toBeDefined()
+      const augs = result.getAvailableAugmentations()
+      expect(Array.isArray(augs)).toBe(true)
+      expect(augs).toContain('display')
+    })
+
+    it('should provide explore method for debugging', async () => {
+      const id = await brainy.addNoun('Test Entity', { type: 'Concept', description: 'Test' })
+      const result = await brainy.getNoun(id)
+      
+      expect(result.explore).toBeDefined()
+      
+      // Should not throw when called
+      await expect(result.explore()).resolves.toBeUndefined()
+    })
+  })
+
+  describe('Configuration', () => {
+    it('should support runtime configuration', () => {
+      const newConfig = {
+        enabled: false,
+        cacheSize: 500
+      }
+      
+      displayAugmentation.configure(newConfig)
+      
+      // Configuration should be applied
+      expect((displayAugmentation as any).config.enabled).toBe(false)
+      expect((displayAugmentation as any).config.cacheSize).toBe(500)
+    })
+
+    it('should clear cache when disabled', () => {
+      displayAugmentation.configure({ enabled: false })
+      
+      // Cache should be cleared
+      const stats = displayAugmentation.getStats()
+      expect(stats.totalComputations).toBe(0)
+    })
+  })
+
+  describe('Error Handling', () => {
+    it('should handle computation errors gracefully', async () => {
+      // Add data that might cause computation issues
+      const id = await brainy.addNoun('')  // Empty string
+      const result = await brainy.getNoun(id)
+      
+      // Should still provide display fields, even if basic
+      const displayFields = await result.getDisplay()
+      expect(displayFields).toBeDefined()
+      expect(displayFields.title).toBeDefined()
+      expect(displayFields.icon).toBeDefined()
+    })
+
+    it('should work without AI components', async () => {
+      // Test fallback to heuristic-based computation
+      const id = await brainy.addNoun('Test Without AI', { type: 'Thing' })
+      const result = await brainy.getNoun(id)
+      
+      // Should still work with heuristic fallback
+      const displayFields = await result.getDisplay()
+      expect(displayFields).toBeDefined()
+      expect(displayFields.title).toBeDefined()
+      expect(displayFields.type).toBeDefined()
+    })
+  })
+
+  describe('Performance', () => {
+    it('should have reasonable computation times', async () => {
+      const startTime = Date.now()
+      
+      const id = await brainy.addNoun('Performance Test Entity', {
+        type: 'Concept',
+        description: 'Testing performance characteristics'
+      })
+      
+      const result = await brainy.getNoun(id)
+      await result.getDisplay()
+      
+      const endTime = Date.now()
+      const duration = endTime - startTime
+      
+      // Should complete within reasonable time (adjust based on system capabilities)
+      expect(duration).toBeLessThan(5000) // 5 seconds max
+    })
+
+    it('should handle batch operations efficiently', async () => {
+      const startTime = Date.now()
+      const ids: string[] = []
+      
+      // Add multiple entities
+      for (let i = 0; i < 10; i++) {
+        const id = await brainy.addNoun(`Test Entity ${i}`, { type: 'Concept' })
+        ids.push(id)
+      }
+      
+      // Get display fields for all
+      const displayPromises = ids.map(async id => {
+        const result = await brainy.getNoun(id)
+        return result.getDisplay()
+      })
+      
+      await Promise.all(displayPromises)
+      
+      const endTime = Date.now()
+      const duration = endTime - startTime
+      
+      // Batch should be reasonably fast
+      expect(duration).toBeLessThan(10000) // 10 seconds max for 10 items
+    })
+  })
+
+  describe('Shutdown and Cleanup', () => {
+    it('should shutdown gracefully', async () => {
+      // Should not throw
+      await expect(displayAugmentation.shutdown()).resolves.toBeUndefined()
+    })
+
+    it('should clear cache on shutdown', async () => {
+      displayAugmentation.clearCache()
+      
+      const stats = displayAugmentation.getStats()
+      expect(stats.totalComputations).toBe(0)
+      expect(stats.cacheHitRatio).toBe(0)
+    })
+  })
+})
+
+describe('Display Cache', () => {
+  let cache: DisplayCache
+
+  beforeEach(() => {
+    cache = new DisplayCache(100)
+  })
+
+  it('should store and retrieve display fields', () => {
+    const testFields = {
+      title: 'Test Title',
+      description: 'Test Description', 
+      type: 'Test Type',
+      icon: '📝',
+      tags: ['test'],
+      confidence: 0.9,
+      computedAt: Date.now(),
+      version: '1.0.0'
+    }
+
+    const key = cache.generateKey('test-id', { name: 'test' }, 'noun')
+    cache.set(key, testFields)
+    
+    const retrieved = cache.get(key)
+    expect(retrieved).toEqual(testFields)
+  })
+
+  it('should implement LRU eviction', () => {
+    const smallCache = new DisplayCache(2)
+    
+    const fields = {
+      title: 'Test',
+      description: 'Test',
+      type: 'Test',
+      icon: '📝',
+      tags: [],
+      confidence: 0.9,
+      computedAt: Date.now(),
+      version: '1.0.0'
+    }
+
+    // Fill cache to capacity
+    smallCache.set('key1', fields)
+    smallCache.set('key2', fields)
+    
+    // Add one more (should evict oldest)
+    smallCache.set('key3', fields)
+    
+    // key1 should be evicted
+    expect(smallCache.get('key1')).toBeNull()
+    expect(smallCache.get('key2')).toBeDefined()
+    expect(smallCache.get('key3')).toBeDefined()
+  })
+
+  it('should generate consistent cache keys', () => {
+    const data = { name: 'test', type: 'Person' }
+    
+    const key1 = cache.generateKey('id-123', data, 'noun')
+    const key2 = cache.generateKey('id-123', data, 'noun')
+    
+    expect(key1).toBe(key2)
+    
+    // Different entity type should produce different key
+    const key3 = cache.generateKey('id-123', data, 'verb')
+    expect(key1).not.toBe(key3)
+  })
+
+  it('should provide cache statistics', () => {
+    const fields = {
+      title: 'Test',
+      description: 'Test',
+      type: 'Test',
+      icon: '📝',
+      tags: [],
+      confidence: 0.9,
+      computedAt: Date.now(),
+      version: '1.0.0'
+    }
+
+    cache.set('test-key', fields, 100) // 100ms computation time
+    cache.get('test-key') // Hit
+    cache.get('nonexistent') // Miss
+    
+    const stats = cache.getStats()
+    expect(stats.totalComputations).toBe(1)
+    expect(stats.cacheHitRatio).toBe(0.5) // 1 hit, 1 miss
+    expect(stats.averageComputationTime).toBe(100)
+  })
+})