feat: FastAPI+SSE API server, JRXML auto-reorder, session integrity fixes

test_reorder.py

@@ -0,0 +1,29 @@
+import sys, io
+sys.stdout = io.TextIOWrapper(sys.stdout.buffer, encoding='utf-8')
+import xml.etree.ElementTree as ET
+from backend.jrxml_reorder import normalize_jrxml
+
+bad = '''<?xml version="1.0" encoding="UTF-8"?>
+<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" name="Test" pageWidth="595" pageHeight="842">
+    <queryString><![CDATA[SELECT 1]]></queryString>
+    <style name="s1"/>
+    <field name="f1" class="java.lang.String"/>
+    <property name="p1" value="v1"/>
+    <parameter name="param1" class="java.lang.String"/>
+    <title><band height="50"><textField><reportElement x="0" y="0" width="100" height="20"/></textField></band></title>
+    <detail><band height="30"><staticText><reportElement x="0" y="0" width="100" height="20"/><text>Hi</text></staticText></band></detail>
+</jasperReport>'''
+
+fixed = normalize_jrxml(bad)
+print('=== Before ===')
+root = ET.fromstring(bad)
+print('Children:', [c.tag.split('}')[-1] for c in root])
+
+print('\n=== After ===')
+root2 = ET.fromstring(fixed)
+print('Children:', [c.tag.split('}')[-1] for c in root2])
+
+# 验证
+import requests
+r = requests.post('http://localhost:8001/validate', json={'jrxml': fixed}, timeout=10)
+print(f'\nValidation: {r.json()}')