fix: replace {student_goals} in PDF export template

app/routes/plans.py

@@ -659,6 +659,15 @@ def export_pdf(plan_id):
             problem_tags += f"- **{problem.get('name', '')}** ({problem.get('severity', '')})\n"
         rendered_report = rendered_report.replace("{problem_tags}", problem_tags or "（无）")
 
+        # 替换学员目标
+        student_goals_list = StudentGoal.query.filter_by(student_id=plan.student_id).all() if plan.student_id else []
+        goals_text_parts = []
+        for g in student_goals_list:
+            if g.status != "已完成":
+                goals_text_parts.append(f"- **{g.goal.name}**\n  内容：{g.goal_content or '未提供具体内容'}")
+        goals_text = "\n".join(goals_text_parts) if goals_text_parts else "（无）"
+        rendered_report = rendered_report.replace("{student_goals}", goals_text)
+
     pdf_path = generate_pdf(
         plan_id=plan_id,
         student_name=student_name,