fix: prevent infinite loop in pagination when storage returns phantom items

- Fix FileSystemStorage counting non-existent files in totalCount
- Add safety check in BaseStorage to prevent hasMore:true with empty items
- Ensure pagination terminates correctly even with corrupted storage state

test-infinite-loop.js

@@ -0,0 +1,47 @@
+import { Brainy } from './dist/index.js';
+import fs from 'fs/promises';
+
+async function test() {
+  // Clean up any existing test data
+  const testDir = './.test-brainy';
+  try {
+    await fs.rm(testDir, { recursive: true });
+  } catch (e) {
+    // Ignore if doesn't exist
+  }
+
+  console.log('Testing Brainy initialization...');
+
+  const brain = new Brainy({
+    storage: {
+      type: 'filesystem',
+      options: {
+        path: testDir
+      }
+    },
+    model: {
+      type: 'accurate'  // Same as Sage
+    },
+    cache: true,
+    verbose: false,
+    silent: true
+  });
+
+  console.log('Calling brain.init()...');
+
+  try {
+    await brain.init();
+    console.log('✅ Initialization completed successfully!');
+  } catch (error) {
+    console.error('❌ Initialization failed:', error);
+  }
+
+  // Clean up
+  try {
+    await fs.rm(testDir, { recursive: true });
+  } catch (e) {
+    // Ignore
+  }
+}
+
+test().catch(console.error);