feat(chat): threads UI + graphql flow + qwen/gigachat integration

Frontend/server/api/graphql.post.ts

@@ -0,0 +1,39 @@
+import { readBody } from "h3";
+import { graphql } from "graphql";
+import { getAuthContext } from "../utils/auth";
+import { crmGraphqlRoot, crmGraphqlSchema } from "../graphql/schema";
+
+type GraphqlBody = {
+  query?: string;
+  operationName?: string;
+  variables?: Record<string, unknown>;
+};
+
+export default defineEventHandler(async (event) => {
+  const body = await readBody<GraphqlBody>(event);
+
+  if (!body?.query || !body.query.trim()) {
+    throw createError({ statusCode: 400, statusMessage: "GraphQL query is required" });
+  }
+
+  let auth = null;
+  try {
+    auth = await getAuthContext(event);
+  } catch {
+    auth = null;
+  }
+
+  const result = await graphql({
+    schema: crmGraphqlSchema,
+    source: body.query,
+    rootValue: crmGraphqlRoot,
+    contextValue: { auth, event },
+    variableValues: body.variables,
+    operationName: body.operationName,
+  });
+
+  return {
+    data: result.data ?? null,
+    errors: result.errors?.map((error) => ({ message: error.message })) ?? undefined,
+  };
+});