feat: Add Google Cloud Storage CDN for models.soulcraft.com

- Primary source: models.soulcraft.com on GCS
- Backup: GitHub releases
- Fallback: Hugging Face
- Immutable with SHA256 verification

src/brainyData.ts

@@ -1271,7 +1271,7 @@ export class BrainyData<T = any> implements BrainyDataInterface<T> {
     // CRITICAL: Ensure model is available before ANY operations
     // This is THE most critical part of the system
     // Without the model, users CANNOT access their data
-    if (this.embeddingFunction) {
+    if (typeof this.embeddingFunction === 'function') {
       try {
         const { modelGuardian } = await import('./critical/model-guardian.js')
         await modelGuardian.ensureCriticalModel()

src/critical/model-guardian.ts

@@ -28,19 +28,19 @@ const CRITICAL_MODEL_CONFIG = {
   modelSize: {
     'onnx/model.onnx': 90555481, // Exact size in bytes
     'tokenizer.json': 711661
-  },
+  } as Record<string, number>,
   embeddingDimensions: 384,
   fallbackSources: [
-    // Primary: Our GitHub releases (we control this)
+    // Primary: Our Google Cloud Storage CDN (we control this, fastest)
     {
-      name: 'GitHub (Primary)',
-      url: 'https://github.com/soulcraftlabs/brainy-models/releases/download/v1.0.0/all-MiniLM-L6-v2.tar.gz',
+      name: 'Soulcraft CDN (Primary)',
+      url: 'https://models.soulcraft.com/models/all-MiniLM-L6-v2.tar.gz',
       type: 'tarball'
     },
-    // Secondary: Our CDN (future, for speed)
+    // Secondary: GitHub releases backup
     {
-      name: 'Soulcraft CDN',
-      url: 'https://models.soulcraft.com/brainy/v1/all-MiniLM-L6-v2.tar.gz',
+      name: 'GitHub Backup',
+      url: 'https://github.com/soulcraftlabs/brainy-models/releases/download/v1.0.0/all-MiniLM-L6-v2.tar.gz',
       type: 'tarball'
     },
     // Tertiary: Hugging Face (original source)
@@ -125,7 +125,7 @@ export class ModelGuardian {
           return
         }
       } catch (error) {
-        console.warn(`❌ ${source.name} failed:`, error.message)
+        console.warn(`❌ ${source.name} failed:`, (error as Error).message)
       }
     }
     

src/embeddings/model-manager.ts

@@ -126,7 +126,7 @@ export class ModelManager {
   }
   
   private async verifyModelFiles(modelPath: string, modelName: string): Promise<boolean> {
-    const manifest = MODEL_MANIFEST[modelName]
+    const manifest = (MODEL_MANIFEST as any)[modelName]
     if (!manifest) return false
     
     for (const [filePath, info] of Object.entries(manifest.files)) {
@@ -140,7 +140,7 @@ export class ModelManager {
         const stats = await import('fs').then(fs => 
           fs.promises.stat(fullPath)
         )
-        if (stats.size !== info.size) {
+        if (stats.size !== (info as any).size) {
           console.warn(`⚠️ Model file size mismatch: ${filePath}`)
           return false
         }
@@ -169,7 +169,7 @@ export class ModelManager {
       return false
       
     } catch (error) {
-      console.log('⚠️ GitHub download failed:', error.message)
+      console.log('⚠️ GitHub download failed:', (error as Error).message)
       return false
     }
   }
@@ -190,7 +190,7 @@ export class ModelManager {
       return false
       
     } catch (error) {
-      console.log('⚠️ CDN download failed:', error.message)
+      console.log('⚠️ CDN download failed:', (error as Error).message)
       return false
     }
   }