style: auto-fix ESLint issues (curly braces and formatting)

- Add curly braces to all if/else/for/while statements
- Fix indentation and trailing spaces
- Auto-fixed 372 linting errors using eslint --fix
- Remaining issues are warnings only (non-null assertions, explicit any types)

src/memory/vector-store.ts

@@ -52,7 +52,7 @@ export function cosineSimilarity(a: number[] | Float32Array, b: number[] | Float
   }
 
   const magnitude = Math.sqrt(normA) * Math.sqrt(normB);
-  if (magnitude === 0) return 0;
+  if (magnitude === 0) {return 0;}
 
   return dotProduct / magnitude;
 }
@@ -129,7 +129,7 @@ export class VectorStore {
       throw new Error(`Chunks/embeddings length mismatch: ${chunks.length} vs ${embeddings.length}`);
     }
 
-    if (chunks.length === 0) return;
+    if (chunks.length === 0) {return;}
 
     const namespace = chunks[0].namespace;