feat: AI context, Webhooks, Kanban drag-drop, and UI fixes

app/server/api/nodes/[id]/execute.post.ts

@@ -0,0 +1,96 @@
+import { requireAuth } from '~/server/utils/auth'
+import { prisma } from '~/server/utils/prisma'
+import { generateAIResponse } from '~/server/utils/ai'
+
+export default defineEventHandler(async (event) => {
+  const user = requireAuth(event)
+  const nodeId = getRouterParam(event, 'id')
+  const body = await readBody(event)
+  const { canvasId, context } = body
+
+  if (!nodeId || !canvasId) {
+    throw createError({ statusCode: 400, message: 'Node ID and Canvas ID are required' })
+  }
+
+  // 1. Найти холст и убедиться в правах доступа
+  const canvas = await prisma.canvas.findUnique({
+    where: { id: canvasId }
+  })
+
+  if (!canvas) {
+    throw createError({ statusCode: 404, message: 'Canvas not found' })
+  }
+
+  // Проверка прав (владелец или админ)
+  if (canvas.ownerId !== user.id && user.role !== 'admin') {
+    throw createError({ statusCode: 403, message: 'Access denied' })
+  }
+
+  // 2. Найти конкретный узел в JSON холста
+  const nodes = (canvas.nodes as any[]) || []
+  const nodeIdx = nodes.findIndex(n => n.id === nodeId)
+  
+  if (nodeIdx === -1) {
+    throw createError({ statusCode: 404, message: 'Node not found in canvas' })
+  }
+
+  const node = nodes[nodeIdx]
+
+  try {
+    let result = ''
+
+    if (node.type === 'ai') {
+      // Формируем промпт с учетом контекста от соседей
+      let fullPrompt = node.prompt || node.text || 'Analyze the provided context.'
+      
+      if (context && context.length > 0) {
+        const contextText = context.map((c: any) => `[Node ${c.id}]: ${c.text}`).join('\n\n')
+        fullPrompt = `CONTEXT INFORMATION:\n${contextText}\n\nUSER REQUEST/INSTRUCTION:\n${fullPrompt}`
+      }
+
+      console.log(`[AI Execute] Generating response with context for node ${nodeId}...`)
+      result = await generateAIResponse(fullPrompt)
+      
+      // Сохраняем результат в текст узла
+      nodes[nodeIdx].text = result
+
+    } else if (node.type === 'webhook') {
+      const url = node.url
+      const method = node.method || 'GET'
+      
+      if (!url) throw new Error('Webhook URL is not configured')
+
+      console.log(`[Webhook Execute] Calling ${method} ${url}...`)
+      
+      const response = await $fetch<any>(url, {
+        method,
+        ...(method === 'POST' ? { body: { context, timestamp: new Date() } } : {})
+      })
+
+      result = typeof response === 'string' ? response : JSON.stringify(response, null, 2)
+      nodes[nodeIdx].text = `### Response from ${url}\n\n\`\`\`json\n${result}\n\`\`\``
+      
+    } else {
+      throw createError({ statusCode: 400, message: `Execution not supported for type: ${node.type}` })
+    }
+
+    // 3. Сохраняем обновленный холст
+    await prisma.canvas.update({
+      where: { id: canvasId },
+      data: { nodes }
+    })
+
+    return {
+      success: true,
+      result,
+      message: 'Node executed and canvas updated'
+    }
+
+  } catch (error: any) {
+    console.error('Node execution error:', error)
+    throw createError({
+      statusCode: 500,
+      message: error.message || 'Execution failed'
+    })
+  }
+})