Infrastructure: Implement master/dev/vX branching, save git path, and fix username casing

frontend/lib/sync.ts

@@ -0,0 +1,62 @@
+import { db, PendingOperation } from './db';
+import { inventoryApi } from './api';
+
+export const syncOfflineOperations = async (userId: number) => {
+  const pending = await db.pendingOperations
+    .filter(op => op.synced === 0)
+    .toArray();
+
+  if (pending.length === 0) return { success: 0, errors: 0 };
+
+  try {
+    // Format operations for the backend (convert timestamp to ISO string if needed)
+    const formattedOps = pending.map(op => ({
+      type: op.type,
+      barcode: op.barcode,
+      quantity: op.quantity,
+      timestamp: new Date(op.timestamp).toISOString(),
+      uuid: op.uuid,
+      details: op.details
+    }));
+
+    const results = await inventoryApi.syncBulkOperations(userId, formattedOps);
+
+    // Mark successfully synced operations in IndexedDB
+    // For simplicity, if the whole bulk call succeeds, we mark all as synced or delete them
+    // Real implementation should match success/error per item
+    
+    const successBarcodes = new Set(results.success.map((s: any) => s.barcode));
+    
+    for (const op of pending) {
+      if (successBarcodes.has(op.barcode)) {
+        await db.pendingOperations.update(op.id!, { synced: 1 });
+        // Or remove it: await db.pendingOperations.delete(op.id!);
+      }
+    }
+
+    // Clean up synced operations
+    await db.pendingOperations.where('synced').equals(1).delete();
+
+    return { 
+      success: results.success.length, 
+      errors: results.errors.length,
+      details: results
+    };
+  } catch (error) {
+    console.error('Sync failed:', error);
+    throw error;
+  }
+};
+
+export const fetchAndCacheItems = async () => {
+  try {
+    const items = await inventoryApi.getItems();
+    // Update local cache
+    await db.items.clear();
+    await db.items.bulkAdd(items);
+    return items;
+  } catch (error) {
+    console.error('Failed to fetch items, using cache:', error);
+    return await db.items.toArray();
+  }
+};