docs: v1.5.7 动态API提供商管理，OpenCode Go集成，Bug修复

feat: add favicon
feat: add copyright footer with logos for 有音教育 and 艺超音乐
2026-05-05 15:53:24 +08:00 · 2026-04-30 23:40:32 +08:00 · 2026-04-30 23:32:36 +08:00 · 2026-04-30 20:56:54 +08:00 · 2026-04-29 16:22:42 +08:00 · 2026-04-29 16:14:21 +08:00
32 changed files with 1059 additions and 262 deletions
@@ -164,8 +164,8 @@ piano-plan/

 ---

-> **版本**：v1.5.1
+> **版本**：v1.5.7
 > **创建时间**：2026-04-17
-> **最后更新**：2026-04-28
+> **最后更新**：2026-05-05
 >
-> **重要更新**：v1.5.1 - PDF水印配置保存修复；{student_goals}占位符修复
+> **重要更新**：v1.5.7 - 动态API提供商管理（新增/编辑/删除）；OpenCode Go集成（deepseek-v4-pro/qwen3.6-plus）；AI生成调试增强
@@ -5,25 +5,52 @@ import pathlib
 # 检测是否在Docker容器中
 IS_DOCKER = os.environ.get("FLASK_ENV") == "production"

+# 默认提供商列表
+DEFAULT_PROVIDERS = {
+    "minimax": {
+        "name": "MiniMax",
+        "endpoint": "https://api.minimaxi.com/anthropic/v1",
+        "models": ["MiniMax-M2.7-highspeed"],
+    },
+    "volcengine": {
+        "name": "火山引擎",
+        "endpoint": "https://ark.cn-beijing.volces.com/api/coding/v3",
+        "models": ["doubao-seed-2.0-pro", "doubao-seed-code", "doubao-seed-2.0-lite"],
+    },
+    "deepseek": {
+        "name": "DeepSeek",
+        "endpoint": "https://api.deepseek.com/v1",
+        "models": ["deepseek-chat"],
+    },
+    "openai": {
+        "name": "OpenAI",
+        "endpoint": "https://api.openai.com/v1",
+        "models": ["gpt-4o-mini", "gpt-4o"],
+    },
+    "openrouter": {
+        "name": "OpenRouter",
+        "endpoint": "https://openrouter.ai/api/v1",
+        "models": ["anthropic/claude-3-haiku"],
+    },
+    "opencodego": {
+        "name": "OpenCode Go",
+        "endpoint": "https://opencode.ai/zen/go/v1",
+        "models": ["deepseek-v4-pro", "deepseek-v4-flash", "qwen3.6-plus"],
+    },
+}

-def load_api_config(app_config=None):
-    """加载API配置"""
-    import json
+# 兼容旧配置：从 default_model 迁移到 models
+def _migrate_provider_models(providers):
+    """确保每个 provider 都有 models 数组"""
+    for pid, pdata in list(providers.items()):
+        if "models" not in pdata:
+            if "default_model" in pdata and pdata["default_model"]:
+                pdata["models"] = [pdata.pop("default_model")]
+            else:
+                pdata["models"] = []
+    return providers

-    # 优先从 app_config 获取路径，否则使用基于 __file__ 的绝对路径
-    if app_config and app_config.get("API_CONFIG_FILE"):
-        config_file = pathlib.Path(app_config["API_CONFIG_FILE"])
-    else:
-        config_file = pathlib.Path(__file__).resolve().parent.parent / "config" / "api_config.json"
-
-    default_config = {
-        "provider": "volcengine",
-        "api_key": "",
-        "base_url": "https://ark.cn-beijing.volces.com/api/coding/v3",
-        "model": "doubao-seed-2.0-pro",
-        "temperature": 0.7,
-        "watermark_text": "",
-        "prompt_template": """你是一位专业的钢琴教师，请为学员生成一份简洁的个性化练习方案报告。
+DEFAULT_PROMPT_TEMPLATE = """你是一位专业的钢琴教师，请为学员生成一份简洁的个性化练习方案报告。

 ## 学员信息
 - 姓名：{student_name}
@@ -39,22 +66,56 @@ def load_api_config(app_config=None):
 3. 针对每个问题的核心练习建议
 4. 重点注意事项

-语言要专业、简洁、有鼓励性。使用Markdown格式。""",
+语言要专业、简洁、有鼓励性。使用Markdown格式。"""
+
+
+def _get_config_path(app_config=None):
+    if app_config and app_config.get("API_CONFIG_FILE"):
+        return pathlib.Path(app_config["API_CONFIG_FILE"])
+    return pathlib.Path(__file__).resolve().parent.parent / "config" / "api_config.json"
+
+
+def _build_default_config():
+    return {
+        "provider": "volcengine",
+        "providers": dict(DEFAULT_PROVIDERS),
+        "api_key": "",
+        "base_url": "https://ark.cn-beijing.volces.com/api/coding/v3",
+        "model": "doubao-seed-2.0-pro",
+        "temperature": 0.7,
+        "watermark_text": "",
+        "prompt_template": DEFAULT_PROMPT_TEMPLATE,
    }

+
+def load_api_config(app_config=None):
+    """加载API配置"""
+    import json
+
+    config_file = _get_config_path(app_config)
+    default_config = _build_default_config()
+
    if config_file.exists():
        try:
            with open(config_file, "r", encoding="utf-8") as f:
                loaded_config = json.load(f)
+                # 确保 providers 字段存在（兼容旧配置）
+                if "providers" not in loaded_config:
+                    loaded_config["providers"] = dict(DEFAULT_PROVIDERS)
+                # 迁移旧 default_model → models
+                loaded_config["providers"] = _migrate_provider_models(loaded_config["providers"])
+                # 合并缺失的默认 provider
+                for pid, pdata in DEFAULT_PROVIDERS.items():
+                    if pid not in loaded_config["providers"]:
+                        loaded_config["providers"][pid] = pdata
                # 如果 api_keys 映射存在，根据当前 provider 自动设置 api_key
                if "api_keys" in loaded_config:
                    provider = loaded_config.get("provider", "volcengine")
                    loaded_config["api_key"] = loaded_config["api_keys"].get(provider, "")
                return loaded_config
-        except:
+        except Exception:
            pass

-    # 返回默认配置
    return default_config


@@ -62,40 +123,38 @@ def save_api_config(config, app_config=None):
    """保存API配置"""
    import json

-    # 优先从 app_config 获取路径，否则使用基于 __file__ 的绝对路径
-    if app_config and app_config.get("API_CONFIG_FILE"):
-        config_file = pathlib.Path(app_config["API_CONFIG_FILE"])
-    else:
-        config_file = pathlib.Path(__file__).resolve().parent.parent / "config" / "api_config.json"
-
-    config_file = pathlib.Path(config_file)
+    config_file = _get_config_path(app_config)
    config_file.parent.mkdir(parents=True, exist_ok=True)

-    # 先读取现有配置，保留 api_keys 映射
    existing_config = {}
    if config_file.exists():
        try:
            with open(config_file, "r", encoding="utf-8") as f:
                existing_config = json.load(f)
-        except:
+        except Exception:
            pass

-    # 如果 config 中有 api_key，保存到 api_keys 映射（保留其他 provider 的 key）
+    # 确保 providers 存在
+    if "providers" not in existing_config:
+        existing_config["providers"] = dict(DEFAULT_PROVIDERS)
+    existing_config["providers"] = _migrate_provider_models(existing_config["providers"])
+
+    # 如果 config 中有 providers，完整替换
+    if "providers" in config:
+        existing_config["providers"] = config["providers"]
+
+    # 保存 api_key 到 api_keys 映射
    if "api_key" in config and config["api_key"]:
        if "api_keys" not in existing_config:
            existing_config["api_keys"] = {}
        provider = config.get("provider", "volcengine")
        existing_config["api_keys"][provider] = config["api_key"]

-    # 合并配置：保留 api_keys，更新其他字段
-    existing_config["provider"] = config.get("provider", existing_config.get("provider", "volcengine"))
-    existing_config["base_url"] = config.get("base_url", existing_config.get("base_url", ""))
-    existing_config["model"] = config.get("model", existing_config.get("model", ""))
-    existing_config["temperature"] = config.get("temperature", existing_config.get("temperature", 0.7))
-    existing_config["prompt_template"] = config.get("prompt_template", existing_config.get("prompt_template", ""))
-    existing_config["watermark_text"] = config.get("watermark_text", existing_config.get("watermark_text", ""))
+    # 更新当前选中的配置
+    for key in ["provider", "base_url", "model", "temperature", "prompt_template", "watermark_text"]:
+        if key in config:
+            existing_config[key] = config[key]

-    # 当前选中的 provider 的 key 直接存储（用于兼容旧逻辑）
    if config.get("api_key"):
        existing_config["api_key"] = config["api_key"]

@@ -133,12 +133,16 @@ class Student(db.Model):
            key=lambda p: (severity_order.get(p.severity, 1), p.created_at)
        )
        # 通过关联获取问题名称
-        problem_names = [p.problem.name if p.problem else p.problem_name for p in problems_list]
+        problem_names = [p.problem.name if p.problem else "未知问题" for p in problems_list]

        # 获取目标统计
        goal_count = len(self.goal_records) if self.goal_records else 0
        completed_goal_count = sum(1 for g in self.goal_records if g.achievement_date) if self.goal_records else 0

+        # 获取最新方案ID
+        latest_plan = self.plans.order_by(db.desc("created_at")).first()
+        latest_plan_id = latest_plan.id if latest_plan else None
+
        return {
            "id": self.id,
            "name": self.name,
@@ -154,6 +158,7 @@ class Student(db.Model):
            "problem_count": self.problems.count(),
            "problem_names": problem_names,  # 问题名称列表（按严重程度排序）
            "plan_count": self.plans.count(),
+            "latest_plan_id": latest_plan_id,
            "goal_count": goal_count,
            "completed_goal_count": completed_goal_count,
        }
@@ -467,7 +467,7 @@ def generate_plan():
            )

            # 真正调用API生成报告
-            _, ai_report, error, _ = generate_ai_report(
+            _, ai_report, error, extra = generate_ai_report(
                student_name=student.name,
                wechat_nickname=student.wechat_nickname or "",
                problems=problem_data,
@@ -479,24 +479,46 @@ def generate_plan():
            )

            if error:
+                # 拼接详细的错误信息用于显示
+                display_error = f"AI生成失败: {error}"
+                if extra:
+                    debug_info = []
+                    if extra.get("prompt_tokens"):
+                        debug_info.append(f"输入token={extra['prompt_tokens']}")
+                    if extra.get("completion_tokens"):
+                        debug_info.append(f"输出token={extra['completion_tokens']}")
+                    if extra.get("finish_reason"):
+                        debug_info.append(f"finish={extra['finish_reason']}")
+                    if extra.get("raw_keys"):
+                        debug_info.append(f"keys={extra['raw_keys']}")
+                    if debug_info:
+                        display_error += " [" + ", ".join(debug_info) + "]"
                yield sse_format(
                    {
                        "step": "ai_error",
-                        "message": f"AI生成失败: {error}",
+                        "message": display_error,
                        "progress": 80,
-                        "error": error,
+                        "error": display_error,
                    }
                )
-                plan_content["ai_report_error"] = error
+                plan_content["ai_report_error"] = display_error
            else:
                # 显示AI返回的报告长度
                report_lines = len(ai_report.split("\n")) if ai_report else 0
+                detail_parts = [f"报告长度: {len(ai_report) if ai_report else 0} 字符, {report_lines} 行"]
+                if extra:
+                    if extra.get("prompt_tokens"):
+                        detail_parts.append(f"输入token: {extra['prompt_tokens']}")
+                    if extra.get("completion_tokens"):
+                        detail_parts.append(f"输出token: {extra['completion_tokens']}")
+                    if extra.get("finish_reason"):
+                        detail_parts.append(f"finish_reason: {extra['finish_reason']}")
                yield sse_format(
                    {
                        "step": "ai_response",
                        "message": f"AI报告已生成",
                        "progress": 75,
-                        "detail": f"报告长度: {len(ai_report) if ai_report else 0} 字符, {report_lines} 行",
+                        "detail": " | ".join(detail_parts),
                    }
                )
                yield sse_format(
@@ -558,6 +580,7 @@ def generate_plan():
                    "ai_report": ai_report,
                    "prompt_length": prompt_length,
                    "ai_report_length": len(ai_report) if ai_report else 0,
+                    "ai_error": plan_content.get("ai_report_error", ""),
                }
            )
        except Exception as e:
@@ -832,6 +855,29 @@ def preview_report(plan_id):
    # Markdown 转 HTML
    html_content = markdown.markdown(rendered, extensions=['tables', 'fenced_code'])

+    # URL 转二维码图片（预览用）
+    import re
+    import qrcode
+    import base64
+    from io import BytesIO
+
+    def make_qr_base64(url):
+        qr = qrcode.make(url, box_size=5)
+        buf = BytesIO()
+        qr.save(buf, format='PNG')
+        return base64.b64encode(buf.getvalue()).decode()
+
+    def replace_url_with_qr(match):
+        url = match.group(0)
+        try:
+            qr_b64 = make_qr_base64(url)
+            return f'<br><img src="data:image/png;base64,{qr_b64}" alt="QR" style="width:80px;display:block;margin:8px auto;">'
+        except:
+            return url
+
+    url_pattern = re.compile(r'https?://[^\s<>"{}|\\^`\[\]]+')
+    html_content = url_pattern.sub(replace_url_with_qr, html_content)
+
    # 支持 ReportLab <para alignment="center"> 语法，转为 HTML
    import re
    html_content = re.sub(
@@ -6,7 +6,7 @@ from datetime import datetime
 from flask import request, jsonify, render_template, current_app, session, redirect
 from app.routes import main_bp
 from app.models import db, Problem, StudentProblem
-from app.config import load_api_config, save_api_config
+from app.config import load_api_config, save_api_config, DEFAULT_PROVIDERS
 from app.routes.auth import login_required_json, admin_required


@@ -42,8 +42,113 @@ def get_api_config():
    return jsonify(config)


+@main_bp.route("/api/config/providers", methods=["GET"])
+@admin_required
+def list_providers():
+    """列出所有API提供商"""
+    config = load_api_config(current_app.config)
+    providers = config.get("providers", {})
+    result = {}
+    for pid, pdata in providers.items():
+        result[pid] = {
+            "name": pdata.get("name", pid),
+            "endpoint": pdata.get("endpoint", ""),
+            "models": pdata.get("models", []),
+        }
+    return jsonify(result)


+@main_bp.route("/api/config/providers", methods=["POST"])
+@admin_required
+def add_provider():
+    """新增API提供商"""
+    data = request.get_json()
+    provider_id = data.get("id", "").strip().lower()
+    name = data.get("name", "").strip()
+    endpoint = data.get("endpoint", "").strip()
+    models = data.get("models", [])
+
+    if not isinstance(models, list):
+        models = [m.strip() for m in str(models).split(",") if m.strip()]
+
+    if not provider_id or not name:
+        return jsonify({"error": "提供商ID和名称不能为空"}), 400
+    if not endpoint:
+        return jsonify({"error": "Endpoint不能为空"}), 400
+
+    config = load_api_config(current_app.config)
+    providers = config.get("providers", {})
+
+    if provider_id in providers:
+        return jsonify({"error": f"提供商 '{provider_id}' 已存在"}), 400
+
+    providers[provider_id] = {
+        "name": name,
+        "endpoint": endpoint,
+        "models": models,
+    }
+    config["providers"] = providers
+    save_api_config(config, current_app.config)
+    return jsonify({"message": "添加成功", "id": provider_id})
+
+
+@main_bp.route("/api/config/providers/<provider_id>", methods=["DELETE"])
+@admin_required
+def delete_provider(provider_id):
+    """删除API提供商"""
+    provider_id = provider_id.strip().lower()
+    config = load_api_config(current_app.config)
+    providers = config.get("providers", {})
+
+    if provider_id not in providers:
+        return jsonify({"error": f"提供商 '{provider_id}' 不存在"}), 404
+
+    # 不允许删除当前选中的 provider
+    if provider_id == config.get("provider"):
+        return jsonify({"error": "不能删除当前正在使用的提供商，请先切换到其他提供商"}), 400
+
+    # 不允许删除到只剩 0 个
+    if len(providers) <= 1:
+        return jsonify({"error": "至少保留一个提供商"}), 400
+
+    del providers[provider_id]
+
+    # 同时删除 api_keys 中对应的 key
+    if "api_keys" in config and provider_id in config["api_keys"]:
+        del config["api_keys"][provider_id]
+
+    config["providers"] = providers
+    save_api_config(config, current_app.config)
+    return jsonify({"message": "删除成功"})
+
+
+@main_bp.route("/api/config/providers/<provider_id>", methods=["PUT"])
+@admin_required
+def update_provider(provider_id):
+    """更新API提供商（名称、endpoint、模型列表）"""
+    provider_id = provider_id.strip().lower()
+    data = request.get_json()
+    config = load_api_config(current_app.config)
+    providers = config.get("providers", {})
+
+    if provider_id not in providers:
+        return jsonify({"error": f"提供商 '{provider_id}' 不存在"}), 404
+
+    pdata = providers[provider_id]
+    if "name" in data:
+        pdata["name"] = data["name"].strip()
+    if "endpoint" in data:
+        pdata["endpoint"] = data["endpoint"].strip()
+    if "models" in data:
+        if isinstance(data["models"], list):
+            pdata["models"] = [m.strip() for m in data["models"] if m.strip()]
+        else:
+            pdata["models"] = [m.strip() for m in str(data["models"]).split(",") if m.strip()]
+
+    config["providers"] = providers
+    save_api_config(config, current_app.config)
+    return jsonify({"message": "更新成功"})
+

@main_bp.route("/api/config", methods=["POST"])
@admin_required
@@ -51,32 +156,38 @@ def update_api_config():
    """更新API配置"""
    data = request.get_json()

-    # 验证必填字段
-    if not data.get("api_key"):
-        return jsonify({"error": "API Key不能为空"}), 400
+    config = load_api_config(current_app.config)
+    provider = data.get("provider", config.get("provider", "volcengine"))

-    # 根据provider设置默认endpoint
-    provider = data.get("provider", "volcengine")
-    default_endpoints = {
-        "minimax": "https://api.minimaxi.com/anthropic/v1",
-        "volcengine": "https://ark.cn-beijing.volces.com/api/coding/v3",
-        "deepseek": "https://api.deepseek.com/v1",
-        "openrouter": "https://openrouter.ai/api/v1",
-    }
-    default_endpoint = default_endpoints.get(provider, "https://ark.cn-beijing.volces.com/api/coding/v3")
+    # api_key 留空时，尝试使用已有 key（当前 provider 的 key）
+    api_key = data.get("api_key", "")
+    if not api_key:
+        existing_key = config.get("api_keys", {}).get(provider, "")
+        if not existing_key:
+            return jsonify({"error": "API Key不能为空"}), 400
+        api_key = existing_key
+    providers = config.get("providers", DEFAULT_PROVIDERS)

-    # 保存配置
-    config = {
+    # 从 providers 列表获取默认 endpoint 和 model
+    if provider in providers:
+        default_endpoint = providers[provider].get("endpoint", "")
+        models = providers[provider].get("models", [])
+        default_model = models[0] if models else ""
+    else:
+        default_endpoint = ""
+        default_model = ""
+
+    new_config = {
        "provider": provider,
-        "api_key": data.get("api_key", ""),
+        "api_key": api_key,
        "base_url": data.get("base_url", default_endpoint),
-        "model": data.get("model", "doubao-seed-2.0-pro"),
+        "model": data.get("model", default_model),
        "temperature": float(data.get("temperature", 0.7)),
        "prompt_template": data.get("prompt_template", ""),
        "watermark_text": data.get("watermark_text", ""),
    }

-    save_api_config(config, current_app.config)
+    save_api_config(new_config, current_app.config)
    return jsonify({"message": "配置保存成功"})


@@ -171,7 +282,7 @@ def delete_problem(problem_id):

    # 检查是否有关联数据
    from app.models import StudentProblem
-    if StudentProblem.query.filter_by(problem_db_id=problem_id).first():
+    if StudentProblem.query.filter_by(problem_id=problem_id).first():
        return jsonify({"error": "该问题已被学员使用，无法删除"}), 400

    db.session.delete(problem)
@@ -53,6 +53,26 @@ try:
 except Exception as e:
    CHINESE_FONT_OK = False

+import re
+import qrcode
+from io import BytesIO
+from reportlab.platypus import Image as RLImage
+
+# URL 正则表达式
+URL_PATTERN = re.compile(r'https?://[^\s<>"{}|\\^`\[\]]+')
+
+def generate_qr_image(url, size=50*mm):
+    """生成二维码图片，返回 BytesIO 对象"""
+    qr = qrcode.make(url, box_size=10)
+    buf = BytesIO()
+    qr.save(buf, format='PNG')
+    buf.seek(0)
+    return buf
+
+def contains_url(text):
+    """检测文本是否包含 URL"""
+    return bool(URL_PATTERN.search(text))
+
 def md_to_xml(text):
    """将markdown转换为reportlab XML markup"""
    if not text:
@@ -138,8 +158,8 @@ class PianoPDF:
            "CustomBody",
            parent=self.styles["Normal"],
            fontName=self.base_font,
-            fontSize=10,
-            spaceAfter=4*mm,
+            fontSize=12,
+            spaceAfter=1*mm,
            leading=14,
        )

@@ -149,11 +169,11 @@ class PianoPDF:
            ("TEXTCOLOR", (0, 0), (-1, 0), colors.whitesmoke),
            ("ALIGN", (0, 0), (-1, -1), "LEFT"),
            ("FONTNAME", (0, 0), (-1, 0), self.bold_font),
-            ("FONTSIZE", (0, 0), (-1, 0), 10),
+            ("FONTSIZE", (0, 0), (-1, 0), 12),
            ("BOTTOMPADDING", (0, 0), (-1, 0), 8),
            ("BACKGROUND", (0, 1), (-1, -1), colors.white),
            ("FONTNAME", (0, 1), (-1, -1), self.base_font),
-            ("FONTSIZE", (0, 1), (-1, -1), 9),
+            ("FONTSIZE", (0, 1), (-1, -1), 11),
            ("GRID", (0, 0), (-1, -1), 0.5, colors.grey),
            ("ROWBACKGROUNDS", (0, 1), (-1, -1), [colors.white, colors.HexColor("#f8f9fa")]),
        ])
@@ -169,15 +189,33 @@ class PianoPDF:
            self.elements.append(Paragraph(md_to_xml(text), self.heading_style))

    def add_paragraph(self, text):
-        if text:
-            self.elements.append(Paragraph(md_to_xml(text), self.body_style))
-            self.elements.append(Spacer(1, 3*mm))
+        if not text:
+            return
+
+        # 检测是否是纯 URL
+        url_match = URL_PATTERN.match(text.strip())
+        if url_match and url_match.group() == text.strip():
+            # 纯 URL，生成二维码
+            url = url_match.group()
+            try:
+                buf = generate_qr_image(url, 50*mm)
+                img = RLImage(buf, width=50*mm, height=50*mm)
+                img.hAlign = 'CENTER'
+                self.elements.append(img)
+                self.elements.append(Spacer(1, 2*mm))
+                return
+            except Exception as e:
+                # QR生成失败，回退到文字
+                pass
+
+        self.elements.append(Paragraph(md_to_xml(text), self.body_style))
+        self.elements.append(Spacer(1, 1*mm))

    def add_list(self, items):
        for item in items:
            if item:
                self.elements.append(Paragraph(f"• {md_to_xml(item)}", self.body_style))
-        self.elements.append(Spacer(1, 3*mm))
+        self.elements.append(Spacer(1, 1*mm))

    def add_table(self, data):
        if not data or len(data) < 2:
@@ -189,7 +227,7 @@ class PianoPDF:
            table = Table(table_data)
            table.setStyle(self.table_style)
            self.elements.append(table)
-            self.elements.append(Spacer(1, 5*mm))
+            self.elements.append(Spacer(1, 3*mm))


 def generate_pdf(plan_id, student_name, content, output_dir, rendered_report=None, watermark_text=None):
@@ -249,7 +287,7 @@ def generate_pdf(plan_id, student_name, content, output_dir, rendered_report=Non
            pdf.add_table(table_data)
    else:
        # 使用结构化内容
-        pdf.add_title(f"钢琴练习方案 - {student_name}")
+        pdf.add_title(f"有音个性化教学 - {student_name}")
        pdf.add_heading("学员信息")
        pdf.add_paragraph(f"学员姓名：{student_name}")
        pdf.add_paragraph(f"每日练习时间：{content.get('practice_time', 'N/A')}")
@@ -321,7 +321,7 @@ def generate_ai_report(
        "model": model,
        "messages": [{"role": "user", "content": prompt}],
        "temperature": temperature,
-        "max_tokens": 2000,
+        "max_tokens": 4096,
    }

    # 确定 endpoint
@@ -330,40 +330,71 @@ def generate_ai_report(
    else:
        endpoint = f"{base_url}/chat/completions"

+    # 调试信息
+    req_info = {"endpoint": endpoint, "model": model, "provider": provider}
+
    try:
        response = requests.post(
            endpoint,
            headers=headers,
            json=payload,
-            timeout=60,
+            timeout=180,
+            allow_redirects=False,
        )

        if response.status_code == 200:
-            result = response.json()
+            try:
+                result = response.json()
+            except Exception as je:
+                raw_text = response.text[:300] if response.text else "(empty body)"
+                return prompt, None, f"API返回非JSON [{endpoint}]: {raw_text}", None
            # MiniMax (Anthropic格式) 返回结构不同
            if provider == "minimax":
-                # MiniMax 返回的 content 可能是 [{"type": "thinking", ...}, {"type": "text", "text": "..."}]
                content_list = result.get("content", [])
                content = ""
                for item in content_list:
                    if item.get("type") == "text":
                        content = item.get("text", "")
                        break
+                extra = {"finish_reason": "n/a"}
            else:
-                content = (
-                    result.get("choices", [{}])[0].get("message", {}).get("content", "")
-                )
-            return prompt, content, None, None
+                choice = result.get("choices", [{}])[0]
+                content = choice.get("message", {}).get("content", "")
+                finish = choice.get("finish_reason", "missing")
+                usage = result.get("usage", {})
+                # 调试信息
+                extra = {
+                    "finish_reason": finish,
+                    "prompt_tokens": usage.get("prompt_tokens", 0),
+                    "completion_tokens": usage.get("completion_tokens", 0),
+                    "raw_keys": list(result.keys()),
+                }
+            if not content or not content.strip():
+                err_detail = "API返回空内容"
+                if extra.get("finish_reason", "") not in ("", "n/a"):
+                    err_detail += f" (finish_reason={extra['finish_reason']})"
+                if extra.get("completion_tokens", 0) > 0:
+                    err_detail += f", 有{extra['completion_tokens']}个输出token但content为空"
+                if extra.get("raw_keys"):
+                    err_detail += f", 响应keys={extra['raw_keys']}"
+                return prompt, None, err_detail, extra
+            return prompt, content, None, extra
        else:
-            error_msg = f"API错误: {response.status_code}"
+            error_msg = f"API返回HTTP {response.status_code}"
+            if response.status_code in (301, 302, 303, 307, 308):
+                loc = response.headers.get("Location", "unknown")
+                error_msg += f" 重定向到: {loc}"
            try:
-                error_detail = response.json()
-                error_msg = error_detail.get("error", {}).get("message", error_msg)
+                error_body = response.json()
+                error_msg += ": " + error_body.get("error", {}).get("message", str(error_body)[:200])
            except:
-                pass
+                raw = response.text[:200] if response.text else "(empty)"
+                error_msg += ": " + raw
            return prompt, None, error_msg, None

    except requests.exceptions.Timeout:
-        return prompt, None, "API请求超时，请稍后重试", None
+        return prompt, None, "AI响应超时（等待180秒），网络较慢或模型负载高，请重试", None
+    except requests.exceptions.ConnectionError as e:
+        return prompt, None, f"无法连接到API服务器，请检查网络或Endpoint配置", None
    except Exception as e:
        return prompt, None, f"调用API失败: {str(e)}", None
@@ -1,11 +1,14 @@
 {% extends "base.html" %}

-{% block title %}API设置 - 钢琴练习方案系统{% endblock %}
+{% block title %}API设置 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="card">
-    <div class="card-header">
+    <div class="card-header d-flex justify-content-between align-items-center">
        <h5 class="mb-0"><i class="bi bi-key"></i> AI API 配置</h5>
+        <button class="btn btn-sm btn-outline-primary" onclick="showAddProviderModal()">
+            <i class="bi bi-plus-lg"></i> 新增提供商
+        </button>
    </div>
    <div class="card-body">
        <div class="alert alert-info">
@@ -14,24 +17,21 @@

        <form id="apiConfigForm">
            <div class="row">
-                <div class="col-md-6 mb-3">
+                <div class="col-md-8 mb-3">
                    <label class="form-label">提供商</label>
-                    <select class="form-select" id="apiProvider" onchange="onProviderChange()">
-                        <option value="minimax">MiniMax (Token Plan)</option>
-                        <option value="volcengine">火山引擎 (Volcengine)</option>
-                        <option value="deepseek">DeepSeek</option>
-                        <option value="openai">OpenAI</option>
-                        <option value="openrouter">OpenRouter</option>
-                    </select>
+                    <div class="input-group">
+                        <select class="form-select" id="apiProvider" onchange="onProviderChange()"></select>
+                        <button class="btn btn-outline-danger" type="button" onclick="deleteCurrentProvider()" title="删除当前提供商">
+                            <i class="bi bi-trash"></i>
+                        </button>
+                    </div>
                </div>
-                <div class="col-md-6 mb-3">
+                <div class="col-md-4 mb-3">
                    <label class="form-label">模型</label>
-                    <select class="form-select" id="apiModel">
-                        <option value="MiniMax-M2.7-highspeed">MiniMax-M2.7-highspeed</option>
-                        <option value="doubao-seed-2.0-pro">doubao-seed-2.0-pro</option>
-                        <option value="doubao-seed-code">doubao-seed-code</option>
-                        <option value="doubao-seed-2.0-lite">doubao-seed-2.0-lite</option>
-                    </select>
+                    <div id="modelInputArea">
+                        <select class="form-select" id="apiModelSelect" onchange="onModelSelectChange()" style="display:none"></select>
+                        <input type="text" class="form-control" id="apiModelText" placeholder="如 gpt-4o-mini">
+                    </div>
                </div>
            </div>

@@ -77,41 +77,59 @@
    </div>
 </div>

+<!-- 新增提供商 Modal -->
+<div class="modal fade" id="addProviderModal" tabindex="-1">
+    <div class="modal-dialog">
+        <div class="modal-content">
+            <div class="modal-header">
+                <h5 class="modal-title" id="providerModalTitle">新增API提供商</h5>
+                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
+            </div>
+            <div class="modal-body">
+                <div class="mb-3">
+                    <label class="form-label">提供商ID <small class="text-muted">(英文标识)</small></label>
+                    <input type="text" class="form-control" id="newProviderId" placeholder="如 opencodego">
+                </div>
+                <div class="mb-3">
+                    <label class="form-label">显示名称</label>
+                    <input type="text" class="form-control" id="newProviderName" placeholder="如 OpenCode Go">
+                </div>
+                <div class="mb-3">
+                    <label class="form-label">API Endpoint</label>
+                    <input type="text" class="form-control" id="newProviderEndpoint" placeholder="https://api.example.com/v1">
+                </div>
+                <div class="mb-3">
+                    <label class="form-label">模型列表</label>
+                    <div id="newModelsContainer">
+                        <div class="input-group mb-1">
+                            <input type="text" class="form-control newModelInput" placeholder="模型名称，如 gpt-4o">
+                            <button class="btn btn-outline-danger" type="button" onclick="removeModelInput(this)" title="删除">&times;</button>
+                        </div>
+                    </div>
+                    <button type="button" class="btn btn-sm btn-outline-secondary mt-1" onclick="addModelInput()">
+                        <i class="bi bi-plus"></i> 添加模型
+                    </button>
+                    <small class="text-muted d-block">一个提供商可以有多个模型</small>
+                </div>
+            </div>
+            <div class="modal-footer">
+                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
+                <button type="button" class="btn btn-primary" id="providerModalSaveBtn" onclick="saveProvider()">确认添加</button>
+            </div>
+        </div>
+    </div>
+</div>
+
 <div class="card mt-3">
    <div class="card-header">
-        <h6 class="mb-0"><i class="bi bi-lightbulb"></i> 推荐配置</h6>
+        <h6 class="mb-0"><i class="bi bi-lightbulb"></i> 已注册提供商</h6>
    </div>
    <div class="card-body">
-        <table class="table table-sm">
+        <table class="table table-sm" id="providersTable">
            <thead>
-                <tr>
-                    <th>提供商</th>
-                    <th>推荐模型</th>
-                    <th>Endpoint</th>
-                </tr>
+                <tr><th>ID</th><th>名称</th><th>Endpoint</th><th>模型</th><th></th></tr>
            </thead>
-            <tbody>
-                <tr>
-                    <td>MiniMax</td>
-                    <td>MiniMax-M2.7-highspeed</td>
-                    <td><code>https://api.minimaxi.com/anthropic/v1</code></td>
-                </tr>
-                <tr>
-                    <td>火山方舟</td>
-                    <td>doubao-seed-2.0-pro</td>
-                    <td><code>https://ark.cn-beijing.volces.com/api/coding/v3</code></td>
-                </tr>
-                <tr>
-                    <td>DeepSeek</td>
-                    <td>deepseek-chat</td>
-                    <td><code>https://api.deepseek.com</code></td>
-                </tr>
-                <tr>
-                    <td>OpenRouter</td>
-                    <td>deepseek/deepseek-r1</td>
-                    <td><code>https://openrouter.ai/api/v1</code></td>
-                </tr>
-            </tbody>
+            <tbody></tbody>
        </table>
    </div>
 </div>
@@ -120,126 +138,199 @@
 {% block extra_js %}
 <script>
 window.pageInit = function(data) {
-    if (data.role !== 'admin') {
-        window.location.href = '/';
-        return;
-    }
+    if (data.role !== 'admin') { window.location.href = '/'; return; }
    loadApiConfig();
 };

-const providerDefaults = {
-    'minimax': {
-        endpoint: 'https://api.minimaxi.com/anthropic/v1',
-        model: 'MiniMax-M2.7-highspeed',
-        temperature: 0.7,
-        api_key: ''
-    },
-    'volcengine': {
-        endpoint: 'https://ark.cn-beijing.volces.com/api/coding/v3',
-        model: 'doubao-seed-2.0-pro',
-        temperature: 0.7,
-        api_key: ''
-    },
-    'deepseek': {
-        endpoint: 'https://api.deepseek.com',
-        model: 'deepseek-chat',
-        temperature: 0.7,
-        api_key: ''
-    },
-    'openai': {
-        endpoint: 'https://api.openai.com/v1',
-        model: 'gpt-4o-mini',
-        temperature: 0.7,
-        api_key: ''
-    },
-    'openrouter': {
-        endpoint: 'https://openrouter.ai/api/v1',
-        model: 'anthropic/claude-3-haiku',
-        temperature: 0.7,
-        api_key: ''
-    }
-};
+let allProviders = {};
+let currentModel = '';

-async function onProviderChange() {
-    const provider = document.getElementById('apiProvider').value;
-    const defaults = providerDefaults[provider] || providerDefaults['volcengine'];
-
-    document.getElementById('apiModel').value = defaults.model;
-    document.getElementById('apiEndpoint').value = defaults.endpoint;
-    document.getElementById('apiTemperature').value = defaults.temperature;
-    document.getElementById('apiKey').value = defaults.api_key || '';
+async function loadProviders() {
+    const r = await fetch('/api/config/providers');
+    allProviders = await r.json();
+    renderProviderDropdown();
+    renderProvidersTable();
 }

-async function saveApiConfig(silent = false, overrideProvider = null) {
-    const provider = overrideProvider || document.getElementById('apiProvider').value;
+function renderProviderDropdown() {
+    const sel = document.getElementById('apiProvider');
+    const cur = sel.value;
+    sel.innerHTML = '';
+    for (const [id, p] of Object.entries(allProviders)) {
+        sel.innerHTML += `<option value="${id}">${p.name}</option>`;
+    }
+    if (cur && allProviders[cur]) sel.value = cur;
+}
+
+function renderProvidersTable() {
+    const tbody = document.getElementById('providersTable').querySelector('tbody');
+    tbody.innerHTML = '';
+    for (const [id, p] of Object.entries(allProviders)) {
+        const ml = (p.models || []).join(', ');
+        tbody.innerHTML += `<tr>
+            <td><code>${id}</code></td><td>${p.name}</td>
+            <td><code style="font-size:11px">${p.endpoint}</code></td>
+            <td>${ml || '<span class="text-muted">&mdash;</span>'}</td>
+            <td><button class="btn btn-sm btn-outline-secondary" onclick="editProvider('${id}')" title="编辑"><i class="bi bi-pencil"></i></button></td>
+        </tr>`;
+    }
+    if (!Object.keys(allProviders).length) {
+        tbody.innerHTML = '<tr><td colspan="5" class="text-muted text-center">暂无提供商</td></tr>';
+    }
+}
+
+function renderModelInput(models) {
+    const sel = document.getElementById('apiModelSelect');
+    const txt = document.getElementById('apiModelText');
+    if (models && models.length > 1) {
+        sel.style.display = ''; txt.style.display = 'none';
+        sel.innerHTML = '';
+        models.forEach(m => { const o = document.createElement('option'); o.value = m; o.textContent = m; sel.appendChild(o); });
+        if (models.includes(currentModel)) sel.value = currentModel; else sel.value = models[0];
+    } else {
+        sel.style.display = 'none'; txt.style.display = '';
+        txt.value = (models && models.length === 1) ? models[0] : (currentModel || '');
+    }
+}
+
+function getSelectedModel() {
+    const sel = document.getElementById('apiModelSelect');
+    return sel.style.display !== 'none' ? sel.value : document.getElementById('apiModelText').value;
+}
+
+function onModelSelectChange() {
+    currentModel = document.getElementById('apiModelSelect').value;
+}
+
+function onProviderChange() {
+    const id = document.getElementById('apiProvider').value;
+    const p = allProviders[id];
+    if (p) {
+        document.getElementById('apiEndpoint').value = p.endpoint || '';
+        renderModelInput(p.models || []);
+    }
+}
+
+async function loadApiConfig() {
+    await loadProviders();
+    try {
+        const r = await fetch('/api/config');
+        const c = await r.json();
+        document.getElementById('apiProvider').value = c.provider || '';
+        document.getElementById('apiEndpoint').value = c.base_url || '';
+        document.getElementById('apiTemperature').value = c.temperature || 0.7;
+        document.getElementById('watermarkText').value = c.watermark_text || '';
+        currentModel = c.model || '';
+        const p = allProviders[c.provider];
+        renderModelInput(p ? p.models : []);
+        if (c.api_key_preview) document.getElementById('apiKeyPreview').textContent = '当前: ' + c.api_key_preview;
+    } catch (e) { console.error(e); }
+}
+
+async function saveApiConfig() {
+    const m = getSelectedModel();
+    if (!m) { alert('请选择或输入模型'); return; }
    const config = {
-        provider: provider,
-        model: document.getElementById('apiModel').value,
+        provider: document.getElementById('apiProvider').value,
+        model: m,
        api_key: document.getElementById('apiKey').value,
        base_url: document.getElementById('apiEndpoint').value,
        temperature: parseFloat(document.getElementById('apiTemperature').value),
        watermark_text: document.getElementById('watermarkText').value.trim()
    };
-
-    const r = await fetch('/api/config', {
-        method: 'POST',
-        headers: { 'Content-Type': 'application/json' },
-        body: JSON.stringify(config)
-    });
-    const data = await r.json();
-    if (!silent) {
-        if (data.error) {
-            alert(data.error);
-        } else {
-            alert('保存成功');
-        }
-    }
-    return data;
-}
-
-async function loadApiConfig() {
-    try {
-        const r = await fetch('/api/config');
-        const config = await r.json();
-        document.getElementById('apiProvider').value = config.provider || 'volcengine';
-        document.getElementById('apiModel').value = config.model || 'doubao-seed-2.0-pro';
-        document.getElementById('apiKey').value = config.api_key || '';
-        document.getElementById('apiEndpoint').value = config.base_url || '';
-        document.getElementById('apiTemperature').value = config.temperature || 0.7;
-        document.getElementById('watermarkText').value = config.watermark_text || '';
-
-        if (config.api_key_preview) {
-            document.getElementById('apiKeyPreview').textContent = '当前: ' + config.api_key_preview;
-        }
-    } catch (e) {
-        console.error(e);
-    }
+    const r = await fetch('/api/config', { method: 'POST', headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(config) });
+    const d = await r.json();
+    if (d.error) alert(d.error); else { alert('保存成功'); loadApiConfig(); }
 }

 async function testApiConnection() {
-    const resultDiv = document.getElementById('apiTestResult');
-    resultDiv.innerHTML = '<div class="alert alert-info">测试中...</div>';
-
+    const div = document.getElementById('apiTestResult');
+    div.innerHTML = '<div class="alert alert-info">测试中...</div>';
    const r = await fetch('/api/config/test', { method: 'POST' });
-    const data = await r.json();
+    const d = await r.json();
+    div.innerHTML = d.success ? '<div class="alert alert-success"><i class="bi bi-check-circle"></i> 连接成功</div>'
+        : '<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 连接失败: ' + (d.error || '未知错误') + '</div>';
+}

-    if (data.success) {
-        resultDiv.innerHTML = '<div class="alert alert-success"><i class="bi bi-check-circle"></i> 连接成功</div>';
-    } else {
-        resultDiv.innerHTML = '<div class="alert alert-danger"><i class="bi bi-x-circle"></i> 连接失败: ' + (data.error || '未知错误') + '</div>';
-    }
+// --- 新增/编辑提供商 ---
+let editingProviderId = null;
+
+function showAddProviderModal() {
+    editingProviderId = null;
+    document.getElementById('providerModalTitle').textContent = '新增API提供商';
+    document.getElementById('providerModalSaveBtn').textContent = '确认添加';
+    document.getElementById('newProviderId').value = '';
+    document.getElementById('newProviderId').disabled = false;
+    document.getElementById('newProviderName').value = '';
+    document.getElementById('newProviderEndpoint').value = '';
+    document.getElementById('newModelsContainer').innerHTML = `<div class="input-group mb-1">
+        <input type="text" class="form-control newModelInput" placeholder="模型名称">
+        <button class="btn btn-outline-danger" type="button" onclick="removeModelInput(this)" title="删除">&times;</button>
+    </div>`;
+    new bootstrap.Modal(document.getElementById('addProviderModal')).show();
+}
+
+function editProvider(id) {
+    editingProviderId = id;
+    const p = allProviders[id];
+    document.getElementById('providerModalTitle').textContent = '编辑提供商 - ' + p.name;
+    document.getElementById('providerModalSaveBtn').textContent = '保存修改';
+    document.getElementById('newProviderId').value = id;
+    document.getElementById('newProviderId').disabled = true;
+    document.getElementById('newProviderName').value = p.name || '';
+    document.getElementById('newProviderEndpoint').value = p.endpoint || '';
+    const container = document.getElementById('newModelsContainer');
+    const models = p.models || [];
+    if (!models.length) models.push('');
+    container.innerHTML = models.map(m => `<div class="input-group mb-1">
+        <input type="text" class="form-control newModelInput" value="${m}" placeholder="模型名称">
+        <button class="btn btn-outline-danger" type="button" onclick="removeModelInput(this)" title="删除">&times;</button>
+    </div>`).join('');
+    new bootstrap.Modal(document.getElementById('addProviderModal')).show();
+}
+
+async function saveProvider() {
+    const id = document.getElementById('newProviderId').value.trim().toLowerCase();
+    const name = document.getElementById('newProviderName').value.trim();
+    const endpoint = document.getElementById('newProviderEndpoint').value.trim();
+    const models = []; document.querySelectorAll('.newModelInput').forEach(inp => { const v = inp.value.trim(); if (v) models.push(v); });
+
+    if (!name || !endpoint) { alert('请填写名称和Endpoint'); return; }
+    if (!models.length) { alert('请至少添加一个模型'); return; }
+
+    const isEdit = !!editingProviderId;
+    const url = isEdit ? '/api/config/providers/' + editingProviderId : '/api/config/providers';
+    const method = isEdit ? 'PUT' : 'POST';
+    const body = isEdit ? { name, endpoint, models } : { id, name, endpoint, models };
+
+    const r = await fetch(url, { method, headers: { 'Content-Type': 'application/json' }, body: JSON.stringify(body) });
+    const d = await r.json();
+    if (d.error) { alert(d.error); return; }
+    bootstrap.Modal.getInstance(document.getElementById('addProviderModal')).hide();
+    await loadProviders();
+    document.getElementById('apiProvider').value = editingProviderId || id;
+    onProviderChange();
+    alert(isEdit ? '修改成功' : '添加成功');
+}
+
+// --- 删除提供商 ---
+
+async function deleteCurrentProvider() {
+    const id = document.getElementById('apiProvider').value;
+    if (Object.keys(allProviders).length <= 1) { alert('至少保留一个提供商'); return; }
+    if (!confirm('确定要删除提供商 "' + (allProviders[id]?.name || id) + '" 吗？')) return;
+    const r = await fetch('/api/config/providers/' + id, { method: 'DELETE' });
+    const d = await r.json();
+    if (d.error) { alert(d.error); return; }
+    alert('删除成功');
+    loadApiConfig();
 }

 function toggleApiKey() {
-    const input = document.getElementById('apiKey');
-    const icon = document.getElementById('apiKeyToggleIcon');
-    if (input.type === 'password') {
-        input.type = 'text';
-        icon.className = 'bi bi-eye-slash';
-    } else {
-        input.type = 'password';
-        icon.className = 'bi bi-eye';
-    }
+    const inp = document.getElementById('apiKey');
+    const ico = document.getElementById('apiKeyToggleIcon');
+    if (inp.type === 'password') { inp.type = 'text'; ico.className = 'bi bi-eye-slash'; }
+    else { inp.type = 'password'; ico.className = 'bi bi-eye'; }
 }
 </script>
 {% endblock %}
@@ -3,7 +3,10 @@
 <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
-    <title>{% block title %}钢琴练习方案管理系统{% endblock %}</title>
+    <title>{% block title %}有音个性化教学系统{% endblock %}</title>
+
+    <!-- Favicon -->
+    <link rel="icon" type="image/jpeg" href="{{ url_for('static', filename='images/logo-YoIn-200.jpg') }}">

    <!-- 公共CSS -->
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
@@ -70,7 +73,7 @@
    <nav class="mobile-nav-toggle navbar navbar-dark bg-dark d-flex d-md-none" style="position:fixed;top:0;left:0;right:0;z-index:1050;padding:10px;">
        <div class="container-fluid d-flex justify-content-between align-items-center">
            <div>
-                <span class="navbar-brand mb-0"><i class="bi bi-music-note-beamed"></i> 钢琴方案</span>
+                <a href="/" class="navbar-brand mb-0 text-white text-decoration-none"><i class="bi bi-music-note-beamed"></i> 有音个性化教学系统</a>
                <small id="mobileUserDisplay" class="d-block text-white-50" style="font-size:10px;"></small>
            </div>
            <button class="btn btn-outline-light btn-sm" onclick="toggleMobileNav()">
@@ -84,7 +87,7 @@
            <!-- 侧边栏 -->
            <div class="col-md-2 sidebar p-0 collapsed" id="sidebar">
                <div class="p-3 text-center border-bottom border-secondary d-none d-md-block">
-                    <h5><i class="bi bi-music-note-beamed"></i> 钢琴方案</h5>
+                    <h5><a href="/" class="text-white text-decoration-none"><i class="bi bi-music-note-beamed"></i> 有音个性化教学系统</a></h5>
                    <small id="currentUserDisplay" class="text-light"></small>
                </div>
                <nav class="nav flex-column">
@@ -303,5 +306,6 @@
            });
        });
    </script>
+    {% include 'fragments/copyright_footer.html' %}
 </body>
 </html>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}班级管理 - 钢琴练习方案系统{% endblock %}
+{% block title %}班级管理 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="card mb-3">
@@ -0,0 +1,20 @@
+<!-- 版权声明 footer -->
+<footer class="bg-light text-center py-4 mt-auto border-top">
+    <div class="container">
+        <!-- 两家合作企业logo -->
+        <div class="d-flex justify-content-center align-items-center gap-4 mb-3">
+            <img src="{{ url_for('static', filename='images/有音-logo和字.png') }}"
+                 alt="有音教育"
+                 style="height: 40px; width: auto;"
+                 loading="lazy">
+            <img src="{{ url_for('static', filename='images/艺超-logo和字.png') }}"
+                 alt="艺超音乐"
+                 style="height: 40px; width: auto;"
+                 loading="lazy">
+        </div>
+        <!-- 版权文字 -->
+        <p class="text-muted small mb-0">
+            &copy; 2024-2026 有音教育 &amp; 艺超音乐 联合开发 | 个性化钢琴教学系统
+        </p>
+    </div>
+</footer>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}首页 - 钢琴练习方案系统{% endblock %}
+{% block title %}首页 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="row g-4 mb-4">
@@ -39,7 +39,7 @@
 <div class="card">
    <div class="card-body text-center py-5">
        <i class="bi bi-music-note-beamed text-muted" style="font-size: 48px;"></i>
-        <h4 class="mt-3 text-muted">欢迎使用钢琴练习方案管理系统</h4>
+        <h4 class="mt-3 text-muted">欢迎使用有音个性化教学系统</h4>
        <p class="text-muted">从左侧菜单选择功能</p>
    </div>
 </div>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}钢琴练习方案管理系统{% endblock %}
+{% block title %}有音个性化教学系统{% endblock %}

 {% block page_css %}
 <style>
@@ -614,7 +614,7 @@ function renderStudentList(students) {
                            <p class="card-text text-muted small">${s.wechat_nickname || ''} ${s.phone ? '| ' + s.phone : ''}</p>
                            <span class="badge bg-info">${s.practice_time}</span>
                            <span class="badge ${s.problem_count > 0 ? 'bg-secondary' : 'bg-light text-muted'}">${problemText}</span>
-                            <span class="badge ${planBadgeClass}">${planBadgeText}</span>
+                            ${s.plan_count > 0 ? `<a href="/plan/${s.latest_plan_id}" class="text-decoration-none" onclick="event.stopPropagation()"><span class="badge bg-primary">${s.plan_count} 个方案</span></a>` : '<span class="badge bg-light text-muted">暂无方案</span>'}
                            ${s.goal_count > 0 ? `<span class="badge bg-success">${s.goal_count}个目标(${s.completed_goal_count}已达成)</span>` : ''}
                        </div>
                    </a>
@@ -1158,7 +1158,11 @@ async function generatePlan() {
                        if (data.step === 'complete') {
                            setTimeout(() => {
                                progressModal.hide();
-                                alert('方案生成成功！');
+                                if (data.ai_error) {
+                                    alert('基础方案已生成，但AI报告失败: ' + data.ai_error);
+                                } else {
+                                    alert('方案生成成功！');
+                                }
                                showStudentDetail(currentStudentId);
                            }, 500);
                        }
@@ -3,7 +3,8 @@
 <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>登录 - 钢琴练习方案系统</title>
+    <title>登录 - 有音个性化教学系统</title>
+    <link rel="icon" type="image/jpeg" href="/static/images/logo-YoIn-200.jpg">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css" rel="stylesheet">
    <style>
@@ -18,7 +19,7 @@
    <div class="login-card">
        <div class="text-center mb-4">
            <i class="bi bi-music-note-beamed" style="font-size: 48px; color: #667eea;"></i>
-            <h4 class="mt-3">钢琴练习方案系统</h4>
+            <h4 class="mt-3">有音个性化教学系统</h4>
            <p class="text-muted">请登录继续</p>
        </div>
        
@@ -90,5 +91,14 @@
            }
        });
    </script>
+    <style>
+        .login-footer { position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255,255,255,0.9); padding: 10px; text-align: center; }
+        .login-footer img { height: 30px; width: auto; }
+    </style>
+    <div class="login-footer">
+        <img src="/static/images/有音-logo和字.png" alt="有音教育" style="height:25px;margin-right:20px;">
+        <img src="/static/images/艺超-logo和字.png" alt="艺超音乐" style="height:25px;">
+        <p class="small text-muted mb-0 mt-1">&copy; 2024-2026 有音教育 &amp; 艺超音乐 联合开发</p>
+    </div>
 </body>
 </html>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}方案详情 - 钢琴练习方案系统{% endblock %}
+{% block title %}方案详情 - 有音个性化教学系统{% endblock %}

 {% block extra_css %}
 <style>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}编辑方案 - 钢琴练习方案系统{% endblock %}
+{% block title %}编辑方案 - 有音个性化教学系统{% endblock %}

 {% block page_css %}
 <style>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}方案管理 - 钢琴练习方案系统{% endblock %}
+{% block title %}方案管理 - 有音个性化教学系统{% endblock %}

 {% block page_css %}
 <style>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}问题配置 - 钢琴练习方案系统{% endblock %}
+{% block title %}问题配置 - 有音个性化教学系统{% endblock %}

 {% block page_css %}
 <style>
@@ -173,7 +173,7 @@
            </div>
            <div class="modal-body">
                <p>确定要删除问题 <strong id="deleteProblemName"></strong> 吗？</p>
-                <p class="text-muted small">删除后可在 bk 文件夹中找到备份</p>
+                <p class="text-muted small">已被学员使用的问题无法删除</p>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button>
@@ -3,7 +3,8 @@
 <head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <title>初始设置 - 钢琴练习方案系统</title>
+    <title>初始设置 - 有音个性化教学系统</title>
+    <link rel="icon" type="image/jpeg" href="/static/images/logo-YoIn-200.jpg">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css" rel="stylesheet">
    <link href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.0/font/bootstrap-icons.css" rel="stylesheet">
    <style>
@@ -144,5 +145,14 @@
            }
        });
    </script>
+    <style>
+        .setup-footer { position: fixed; bottom: 0; left: 0; right: 0; background: rgba(255,255,255,0.9); padding: 10px; text-align: center; }
+        .setup-footer img { height: 25px; width: auto; }
+    </style>
+    <div class="setup-footer">
+        <img src="/static/images/有音-logo和字.png" alt="有音教育" style="height:20px;margin-right:15px;">
+        <img src="/static/images/艺超-logo和字.png" alt="艺超音乐" style="height:20px;">
+        <p class="small text-muted mb-0 mt-1">&copy; 2024-2026 有音教育 &amp; 艺超音乐 联合开发</p>
+    </div>
 </body>
 </html>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}数据统计 - 钢琴练习方案系统{% endblock %}
+{% block title %}数据统计 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="container-fluid py-4">
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}{{ student.name }} - 学员详情 - 钢琴练习方案系统{% endblock %}
+{% block title %}{{ student.name }} - 学员详情 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="d-flex justify-content-between align-items-center mb-4">
@@ -943,7 +943,11 @@ async function startGeneratePlan() {
                                generateModal.hide();
                                startBtn.disabled = false;
                                startBtn.textContent = '开始生成';
-                                alert('方案生成成功！');
+                                if (data.ai_error) {
+                                    alert('基础方案已生成，但AI报告失败: ' + data.ai_error);
+                                } else {
+                                    alert('方案生成成功！');
+                                }
                                loadPlans();
                            }, 500);
                        }
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}模板管理 - 钢琴练习方案系统{% endblock %}
+{% block title %}模板管理 - 有音个性化教学系统{% endblock %}

 {% block page_css %}
 <style>
@@ -1,6 +1,6 @@
 {% extends "base.html" %}

-{% block title %}用户管理 - 钢琴练习方案系统{% endblock %}
+{% block title %}用户管理 - 有音个性化教学系统{% endblock %}

 {% block content %}
 <div class="d-flex justify-content-between align-items-center mb-4">
@@ -0,0 +1,7 @@
+from app import create_app, db
+from app.models import PracticePlan
+app = create_app()
+with app.app_context():
+    plans = PracticePlan.query.order_by(db.desc("created_at")).limit(3).all()
+    for p in plans:
+        print(f"ID:{p.id} | created_at:{p.created_at} | student:{p.student.name if p.student else 'N/A'}")
@@ -0,0 +1,9 @@
+from app import create_app, db
+from app.models import PracticePlan
+
+# Query local dev database (same data as production)
+app = create_app()
+with app.app_context():
+    plans = PracticePlan.query.order_by(db.desc("created_at")).limit(5).all()
+    for p in plans:
+        print(f"ID:{p.id} | created_at:{p.created_at} | student:{p.student.name if p.student else 'N/A'}")
@@ -1,11 +1,258 @@
 # 钢琴练习方案系统 - 部署 SOP

-> 版本：v1.5.2
-> 日期：2026-04-28
+> 版本：v1.5.7
+> 日期：2026-05-05
 > 核心原则：**不删除，只备份后新增/替换**

 ---

+## 重要更新（v1.5.7）
+
+### 🔧 动态API提供商管理
+
+新增 API 提供商的新增、编辑、删除功能，替代原有的硬编码列表：
+
+**功能特点：**
+- 新增提供商：填写ID/名称/Endpoint/模型列表
+- 编辑提供商：修改名称/Endpoint/模型列表（ID不可改）
+- 删除提供商：移除不再使用的提供商
+- 多模型支持：每个提供商可配置多个模型（>1个显示下拉框）
+
+**OpenCode Go 预置配置：**
+- Endpoint：`https://opencode.ai/zen/go/v1`
+- 模型：`deepseek-v4-pro`、`deepseek-v4-flash`、`qwen3.6-plus`
+
+**API 接口：**
+- `GET /api/config/providers` - 列出所有提供商
+- `POST /api/config/providers` - 新增提供商
+- `PUT /api/config/providers/<id>` - 编辑提供商
+- `DELETE /api/config/providers/<id>` - 删除提供商
+
+### 🐛 Bug 修复
+
+- 问题删除字段名错误（`problem_db_id` → `problem_id`）
+- 学员模型回退属性不存在（`problem_name` → "未知问题"）
+- 删除问题提示文案过时
+- API Key 留空时保存报错（已有 key 则复用）
+- AI 失败时仍弹"方案生成成功"
+- API 超时 60s → 180s，max_tokens 2000 → 4096
+
+### 📊 调试增强
+
+- AI 生成日志显示 finish_reason、输入/输出 token 数
+- API 返回非 JSON 时显示原始内容和请求 URL
+- API 返回空内容时显示详细诊断信息
+
+---
+
+## 重要更新（v1.5.6）
+
+### 🔒 安全防护：Nginx 限流配置
+
+新增 Nginx 限流规则，防止爬虫和恶意请求：
+
+**限流规则：**
+
+| 路由 | 限流规则 | 说明 |
+|------|----------|------|
+| `/` (全站) | 30请求/秒, burst=50 | 正常用户够用 |
+| `/api/generate-plan` | 10请求/秒, burst=20 | 重点防护（AI生成接口） |
+
+**超过限制返回：** `429 Too Many Requests`
+
+**配置文件：**
+- 主配置：`/etc/nginx/nginx.conf`（限流zone定义）
+- 站点配置：`/etc/nginx/conf.d/piano.yoin.fun.conf`（限流规则应用）
+
+**完整的 nginx.conf 限流部分（http{} 块中添加）：**
+```nginx
+    # 限流配置 - 防止爬虫和恶意请求
+    limit_req_zone $binary_remote_addr zone=api_limit:10m rate=10r/s;
+    limit_req_zone $binary_remote_addr zone=general_limit:10m rate=30r/s;
+    limit_req_log_level warn;
+    limit_req_status 429;
+```
+
+**完整的站点配置（piano.yoin.fun.conf）：**
+```nginx
+server {
+    listen 80;
+    server_name piano.yoin.fun;
+    return 301 https://$server_name$request_uri;
+}
+
+server {
+    server_name piano.yoin.fun;
+    location / {
+        limit_req zone=general_limit burst=50 nodelay;
+        proxy_pass http://172.17.0.1:5001;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_buffering off;
+        proxy_cache off;
+        tcp_nodelay on;
+        proxy_http_version 1.1;
+        proxy_set_header Connection '';
+    }
+    location /api/generate-plan {
+        limit_req zone=api_limit burst=20 nodelay;
+        proxy_pass http://172.17.0.1:5001;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_buffering off;
+        proxy_cache off;
+        tcp_nodelay on;
+        proxy_http_version 1.1;
+        proxy_set_header Connection '';
+        proxy_buffers 8 32k;
+        proxy_buffer_size 32k;
+        proxy_max_temp_file_size 1024m;
+    }
+    listen 443 ssl;
+    ssl_certificate /etc/letsencrypt/live/piano.yoin.fun/fullchain.pem;
+    ssl_certificate_key /etc/letsencrypt/live/piano.yoin.fun/privkey.pem;
+}
+```
+
+**部署/修改方法：**
+```bash
+# 1. 备份当前配置
+docker exec nginx_server cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak
+docker exec nginx_server cp /etc/nginx/conf.d/piano.yoin.fun.conf /etc/nginx/conf.d/piano.yoin.fun.conf.bak
+
+# 2. 使用 sed 或直接编辑修改配置
+# 主配置：在 http{} 块中插入限流zone定义
+# 站点配置：在 location{} 块中添加 limit_req 指令
+
+# 3. 测试配置
+docker exec nginx_server nginx -t -c /etc/nginx/nginx.conf
+
+# 4. 重载nginx
+docker exec nginx_server nginx -s reload
+```
+
+**常用命令：**
+```bash
+# 查看限流配置
+docker exec nginx_server cat /etc/nginx/conf.d/piano.yoin.fun.conf | grep limit_req
+
+# 检查nginx状态
+docker exec nginx_server nginx -t
+
+# 重载配置
+docker exec nginx_server nginx -s reload
+
+# 查看nginx日志（限流日志）
+docker exec nginx_server tail -50 /var/log/nginx/error.log
+```
+
+---
+
+### 💾 数据备份：每日自动备份
+
+新增服务器本地每日自动备份机制：
+
+**备份配置：**
+- 备份路径：`/opt/backups/piano-db/`
+- 执行时间：每天凌晨 3:00
+- 保留期限：30 天
+- 备份方式：SQLite `.backup` 命令（保证一致性）
+- 服务状态：crond 运行中
+
+**备份脚本位置：** `/opt/backups/backup_piano_db.sh`（宿主机，不受容器重建影响）
+
+**完整脚本内容：**
+```bash
+#!/bin/bash
+# Piano Plan 数据库每日备份脚本
+# 保留30天
+# 自包含：部署后依然有效，不依赖容器内预存文件
+
+BACKUP_DIR="/opt/backups/piano-db"
+RETENTION_DAYS=30
+TIMESTAMP=$(date +%Y%m%d_%H%M%S)
+BACKUP_FILE="piano_plans_${TIMESTAMP}.db"
+SCRIPT_FILE="/tmp/backup_piano_$$.py"
+
+mkdir -p "$BACKUP_DIR"
+
+# 创建临时Python脚本（写在宿主机，然后复制到容器）
+cat > "$SCRIPT_FILE" << 'PYEOF'
+import sqlite3
+conn = sqlite3.connect('/app/data/piano_plans.db')
+backup = sqlite3.connect('/tmp/piano_backup.db')
+conn.backup(backup)
+backup.close()
+conn.close()
+PYEOF
+
+# 复制到容器并执行
+docker cp "$SCRIPT_FILE" piano-plan:/tmp/backup_piano.py
+rm -f "$SCRIPT_FILE"
+docker exec piano-plan python3 /tmp/backup_piano.py
+
+# 复制备份到宿主机
+docker cp piano-plan:/tmp/piano_backup.db "$BACKUP_DIR/$BACKUP_FILE"
+
+# 清理容器内文件
+docker exec piano-plan rm -f /tmp/backup_piano.py /tmp/piano_backup.db
+
+# 验证
+if [ -f "$BACKUP_DIR/$BACKUP_FILE" ]; then
+    SIZE=$(du -h "$BACKUP_DIR/$BACKUP_FILE" | cut -f1)
+    echo "[$(date)] Backup OK: $BACKUP_FILE ($SIZE)"
+
+    # 删除30天前的备份
+    find "$BACKUP_DIR" -name "piano_plans_*.db" -mtime +${RETENTION_DAYS} -delete
+    echo "[$(date)] Cleanup done (retained $RETENTION_DAYS days)"
+else
+    echo "[$(date)] Backup FAILED"
+    exit 1
+fi
+
+ls -lh "$BACKUP_DIR"
+```
+
+**设置 cron 任务：**
+```bash
+# 添加到 crontab
+(crontab -l 2>/dev/null; echo '0 3 * * * /opt/backups/backup_piano_db.sh >> /opt/backups/backup.log 2>&1') | crontab -
+
+# 验证
+crontab -l
+```
+
+**常用命令：**
+```bash
+# 查看备份
+ls -lh /opt/backups/piano-db/
+
+# 手动执行备份
+/opt/backups/backup_piano_db.sh
+
+# 查看 cron 配置
+crontab -l
+
+# 删除旧的 cron 任务（如果需要）
+crontab -e  # 编辑模式删除对应行
+```
+
+**备份恢复：**
+```bash
+# 停止容器
+docker stop piano-plan
+
+# 复制备份文件到容器
+docker cp /opt/backups/piano-db/piano_plans_XXXXXXXX_XXXXXX.db piano-plan:/app/data/piano_plans.db
+
+# 启动容器
+docker start piano-plan
+```
+
+---
+
 ## 重要更新（v1.5.2）

 ### ✨ 导出预览功能
@@ -260,12 +507,15 @@ docker run -d \
  -p 5001:5001 \
  --restart unless-stopped \
  -e FLASK_ENV=production \
+  -e TZ=Asia/Shanghai \
  -v piano-plan-data:/app/data \
  -v piano-plan-output:/app/output \
  -v /opt/piano-plan/config:/app/config \
  piano-plan:v1.3.0
 ```

+> ⚠️ **重要**：`TZ=Asia/Shanghai` 必须设置，否则容器内 Python `datetime.now()` 返回 UTC 时间，比服务器时间早 8 小时，导致数据库记录的时间比实际时间晚 8 小时。
+
 ### 4.5 验证

 ```bash
@@ -333,6 +583,7 @@ docker run -d \
  -p 5001:5001 \
  --restart unless-stopped \
  -e FLASK_ENV=production \
+  -e TZ=Asia/Shanghai \
  -v piano-plan-data:/app/data \
  -v piano-plan-output:/app/output \
  -v /opt/piano-plan/config:/app/config \
@@ -443,6 +694,11 @@ A: 检查是否执行了 migrate_goals_v3.py 迁移脚本，该脚本创建 stud

 | 版本 | 日期 | 变更 |
 |------|------|------|
+| v1.5.7 | 2026-05-05 | 动态API提供商管理（新增/编辑/删除/多模型）；OpenCode Go集成；Bug修复（问题删除、空key保存、AI失败弹窗）；调试增强 |
+| v1.5.6 | 2026-04-30 | Nginx限流配置（防爬虫/恶意请求）；每日自动备份（30天保留） |
+| v1.5.5 | 2026-04-28 | 修复容器时区（TZ=Asia/Shanghai）；学员列表"x个方案"可点击跳转最新方案详情 |
+| v1.5.4 | 2026-04-28 | PDF正文字体12pt、表格11pt |
+| v1.5.3 | 2026-04-28 | PDF行间距修复（7mm→2mm） |
 | v1.5.2 | 2026-04-28 | 导出预览功能（预览按钮+模态框+水印）；目标内容换行修复；支持<para alignment="center">居中语法；隐藏MD下载按钮 |
 | v1.5.1 | 2026-04-28 | PDF水印配置保存修复（3处漏改）；{student_goals}占位符修复；移除目标导出时的"内容："标签 |
 | v1.5.0 | 2026-04-27 | 数据统计页面（问题/级别分布可视化）；PDF水印配置（可自定义文本）；编辑页按钮吸底；侧边栏顺序调整；Linux中文字体路径修复 |
@@ -460,5 +716,54 @@ A: 检查是否执行了 migrate_goals_v3.py 迁移脚本，该脚本创建 stud

 ---

-> **最后更新**：2026-04-28
-> **更新原因**：v1.5.2 - 导出预览功能；目标换行修复；居中语法支持
+## 十二、Ops 运维脚本
+
+### 12.1 备份脚本 (scripts/ops/backup_piano_db.sh)
+
+**位置**：`scripts/ops/backup_piano_db.sh`（项目目录）
+
+**上传到服务器**：
+```bash
+scp -i ~/.ssh/id_rsa scripts/ops/backup_piano_db.sh root@47.115.32.206:/opt/backups/backup_piano_db.sh
+chmod +x /opt/backups/backup_piano_db.sh
+```
+
+**设置定时任务**：
+```bash
+ssh -i ~/.ssh/id_rsa root@47.115.32.206
+(crontab -l 2>/dev/null; echo '0 3 * * * /opt/backups/backup_piano_db.sh >> /opt/backups/backup.log 2>&1') | crontab -
+```
+
+**验证设置**：
+```bash
+crontab -l
+ls -lh /opt/backups/piano-db/
+```
+
+### 12.2 脚本特性
+
+- **自包含**：不依赖容器内预存文件
+- **幂等性**：可重复执行
+- **验证**：备份后自动验证文件存在
+- **清理**：自动删除 30 天前的备份
+
+### 12.3 恢复备份
+
+```bash
+# 1. 停止容器
+docker stop piano-plan
+
+# 2. 列出可用备份
+ls -lh /opt/backups/piano-db/
+
+# 3. 复制备份到容器
+docker cp /opt/backups/piano-db/piano_plans_XXXXXXXX_XXXXXX.db piano-plan:/app/data/piano_plans.db
+
+# 4. 启动容器
+docker start piano-plan
+```
+
+---
+
+> **最后更新**：2026-05-05
+> **更新原因**：v1.5.7 - 动态API提供商管理；OpenCode Go集成；Bug修复
@@ -0,0 +1,41 @@
+# PDF URL→二维码功能设计
+
+## 需求
+
+导出 PDF 时，如果发现文本内容中有 URL，自动将 URL 转换为二维码，扫描可跳转。
+
+## 规则
+
+- **检测位置**：任意位置（AI报告内容、标题等所有文本）
+- **替代方式**：二维码替代原 URL 文字
+- **二维码大小**：60x60pt（约2.5cm）
+- **放置位置**：URL 原文字位置
+
+## 技术方案
+
+**新增依赖：**
+- `qrcode` Python 包
+
+**修改文件：**
+- `app/services/pdf_generator.py`
+
+**实现步骤：**
+1. 安装 qrcode 包
+2. 在 `generate_pdf()` 中，正则检测 URL（`http://` 或 `https://` 开头）
+3. 检测到 URL 时，生成二维码 PNG 图片
+4. 用 ReportLab 的 `Image` flowable 嵌入 PDF，替代原 URL 文字
+
+**二维码生成方式：**
+```python
+import qrcode
+from io import BytesIO
+
+def generate_qr_image(url, size=60):
+    qr = qrcode.make(url)
+    buf = BytesIO()
+    qr.save(buf, format='PNG')
+    buf.seek(0)
+    return buf
+```
+
+**URL 正则：** `https?://[^\s<>"{}|\\^`\[\]]+`
@@ -5,3 +5,5 @@ Jinja2==3.1.3
 requests==2.31.0
 gunicorn==23.0.0
 markdown>=3.4
+qrcode>=7.4
+Pillow>=10.0
Author	SHA1	Message	Date
hmo	30fbe92b9a	docs: v1.5.7 动态API提供商管理，OpenCode Go集成，Bug修复	2026-05-05 15:53:24 +08:00
hmo	ea29c77fe3	feat: add favicon	2026-04-30 23:40:32 +08:00
hmo	ed28c99e81	feat: add copyright footer with logos for 有音教育 and 艺超音乐	2026-04-30 23:32:36 +08:00
hmo	90e93bb2b0	feat: rename system to 有音个性化教学系统; update docs	2026-04-30 20:56:54 +08:00
hmo	2a8d8a87d7	feat: auto-convert URL to QR code in PDF export and preview	2026-04-29 16:22:42 +08:00
hmo	c9e818e1ac	docs: add pdf qrcode feature design spec	2026-04-29 16:14:21 +08:00
hmo	2198c6b30a	docs: update DEPLOYMENT_SOP - TZ fix and v1.5.2~v1.5.5 changelog	2026-04-28 19:56:28 +08:00
hmo	b0196ba177	feat: click 'x个方案' to open latest plan detail	2026-04-28 16:49:57 +08:00
hmo	9ea39b7c84	fix: increase PDF body font to 12pt, table to 11pt	2026-04-28 16:02:42 +08:00
hmo	c422f36510	fix: reduce PDF line spacing and font size for readability	2026-04-28 15:54:24 +08:00