feat: add complete silent mode for TUI applications

- Add silent option to BrainyConfig to suppress ALL console output
- Override console methods (log, info, warn, error) when silent=true
- Add LogLevel.SILENT to Logger for proper silent mode support
- Propagate silent mode to all augmentations automatically
- Update augmentation configs to support silent property
- Restore console methods properly on brain.close()
- Perfect for terminal UI applications that need clean output

Usage:
```javascript
const brain = new Brainy({
  storage: { type: 'filesystem', path: './data' },
  silent: true  // Complete silence - zero console output
})
```

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/augmentations/cacheAugmentation.ts

@@ -18,6 +18,7 @@ export interface CacheConfig {
   ttl?: number
   enabled?: boolean
   invalidateOnWrite?: boolean
+  silent?: boolean  // Silent mode support
 }
 
 /**
@@ -80,6 +81,11 @@ export class CacheAugmentation extends BaseAugmentation {
             type: 'boolean',
             default: true,
             description: 'Automatically invalidate cache on data modifications'
+          },
+          silent: {
+            type: 'boolean',
+            default: false,
+            description: 'Suppress all console output'
           }
         },
         additionalProperties: false

src/augmentations/display/types.ts

@@ -12,18 +12,21 @@ import type { VectorDocument, GraphVerb } from '../../coreTypes.js'
 export interface DisplayConfig {
   /** Enable/disable the augmentation */
   enabled: boolean
-  
+
   /** LRU cache size for computed display fields */
   cacheSize: number
-  
+
   /** Use lazy computation (recommended for performance) */
   lazyComputation: boolean
-  
+
   /** Batch processing size for multiple requests */
   batchSize: number
-  
+
   /** Minimum confidence threshold for AI type detection */
   confidenceThreshold: number
+
+  /** Silent mode - suppress all console output */
+  silent?: boolean
   
   // No icon configuration needed - clean, minimal approach
   

src/augmentations/metricsAugmentation.ts

@@ -28,6 +28,7 @@ export interface MetricsConfig {
   trackStorageSizes?: boolean
   persistMetrics?: boolean
   metricsInterval?: number
+  silent?: boolean  // New: Silent mode support
 }
 
 /**

src/augmentations/universalDisplayAugmentation.ts

@@ -290,9 +290,14 @@ export class UniversalDisplayAugmentation extends BaseAugmentation {
    */
   private createExploreMethod(entity: any) {
     return async (): Promise<void> => {
+      // Respect silent mode
+      if (this.config.silent) {
+        return
+      }
+
       console.log(`\n📋 Entity Exploration: ${entity.id || 'unknown'}`)
       console.log('━'.repeat(50))
-      
+
       // Show user data
       console.log('\n👤 User Data:')
       const userData = entity.metadata || entity
@@ -313,7 +318,7 @@ export class UniversalDisplayAugmentation extends BaseAugmentation {
       } catch (error) {
         console.log(`  Error computing display fields: ${error}`)
       }
-      
+
       console.log('')
     }
   }