chore: upgrade Prisma 7, LangChain 1.x, Tailwind 4.2, Vue 3.5.29 and other deps

- Prisma 6 → 7: new prisma-client generator, prisma.config.ts, PrismaPg adapter, updated all imports
- LangChain 0.x → 1.x: @langchain/core, langgraph, openai
- Tailwind 4.1 → 4.2.1, daisyUI 5.5.19, Vue 3.5.29, ai 6.0.99, zod 4.3.6
- Fix MessageDirection bug in crm-updates.ts (OUTBOUND → OUT)
- Add server/generated to .gitignore

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/scripts/export-dataset.mjs

@@ -1,7 +1,8 @@
 import fs from "node:fs/promises";
 import fsSync from "node:fs";
 import path from "node:path";
-import { PrismaClient } from "@prisma/client";
+import { PrismaClient } from "../server/generated/prisma/client.js";
+import { PrismaPg } from "@prisma/adapter-pg";
 
 function loadEnvFromDotEnv() {
   const p = path.resolve(process.cwd(), ".env");
@@ -28,7 +29,8 @@ function loadEnvFromDotEnv() {
 
 loadEnvFromDotEnv();
 
-const prisma = new PrismaClient();
+const adapter = new PrismaPg({ connectionString: process.env.DATABASE_URL });
+const prisma = new PrismaClient({ adapter });
 
 function datasetRoot() {
   const teamId = process.env.TEAM_ID || "demo-team";