Add platform config website_url, admin tab, fix writer DB config fallback, add trigger endpoints

platform/backend/app/api/admin.py

@@ -9,6 +9,7 @@ from ..database import get_db
 from ..models import User, Topic, SystemConfig
 from ..schemas import UserCreate, UserUpdate, UserResponse
 from ..core.audit_logger import audit_log
+from .auth import org_filter
 import json
 
 router = APIRouter(prefix="/api/admin", tags=["admin"])

platform/backend/app/api/assistant.py

@@ -0,0 +1,61 @@
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from typing import List, Optional
+from ..core.nvidia_client import call_llm
+from .auth import get_current_user
+
+router = APIRouter(prefix="/api/assistant", tags=["assistant"])
+
+PAGE_CONTEXTS = {
+    "dashboard": "仪表盘页面：显示系统概览统计（选题总数、待处理、待审查、待发布、已发布、今日新增）、模块状态卡片（6个定时任务的运行状态）、近期计划列表",
+    "topics": "选题管理页面：创建和管理内容选题，支持筛选、排序、评分、编辑、预览等功能",
+    "metrics": "数据分析页面：展示各平台内容表现数据，包括浏览量、点赞、收藏、评论等指标的趋势图表",
+    "calendar": "内容日历页面：以日历形式展示内容发布计划，支持创建、编辑、拖拽调整日期",
+    "assets": "素材管理页面：管理图片、文件等媒体素材，支持上传、标签分类、关联选题",
+    "tasks": "任务管理页面：查看内容创作任务的执行状态，包括自动采集、同步、生成、优化等任务",
+    "platforms": "平台配置页面：管理各发布平台的配置，包括平台名称、API端点、发布格式等",
+    "admin": "系统管理页面：管理用户、LLM配置、系统配置、采集类别、信息源、组织、查看运行日志等",
+}
+
+class ChatRequest(BaseModel):
+    message: str
+    page: str = "dashboard"
+    history: List[dict] = []
+
+@router.post("/chat")
+def chat(request: ChatRequest, current_user=Depends(get_current_user)):
+    try:
+        from ..database import SessionLocal
+        from ..models import SystemConfig
+        db = SessionLocal()
+        sc = db.query(SystemConfig).filter(SystemConfig.key == "assistant_system_prompt").first()
+        base_prompt = sc.value if sc else None
+        db.close()
+    except Exception:
+        base_prompt = None
+
+    page_name = request.page
+    page_guide = PAGE_CONTEXTS.get(page_name, "未知页面")
+    username = current_user.username if hasattr(current_user, 'username') else '用户'
+
+    system_prompt = base_prompt or f"""你是一个智能内容创作平台助手，帮助用户解答平台使用问题。
+
+当前用户 {username} 正在查看：{page_guide}
+
+你可以帮助用户：
+1. 解释各个页面的功能和操作方法
+2. 解答平台使用中的疑问
+3. 提供操作建议和最佳实践
+4. 指导用户完成具体的操作步骤
+
+请用友好、简洁的中文回答。如果不确定，建议用户参考相关页面或联系管理员。一次回答控制在200字以内。"""
+
+    messages = request.history[-20:]
+    conversation = "\n".join([f"{'用户' if m.get('role') == 'user' else '助手'}: {m.get('content', '')}" for m in messages])
+    prompt_text = f"{conversation}\n用户: {request.message}\n助手:"
+
+    try:
+        reply = call_llm(prompt_text, system_prompt=system_prompt, temperature=0.5, max_tokens=1000)
+        return {"reply": reply}
+    except Exception as e:
+        return {"reply": f"抱歉，AI助手暂时无法响应，请稍后重试。"}

platform/backend/app/api/system.py

@@ -142,6 +142,30 @@ def run_sync():
     except Exception as e:
         raise HTTPException(status_code=500, detail=str(e))
 
+@router.post("/optimize-sources/run")
+def trigger_optimize_sources():
+    try:
+        from ..core.scheduler import scheduler
+        scheduler._run_optimize_sources()
+        log_file = LOGS_DIR / f"optimizer_sources_{date.today().isoformat()}.log"
+        log_file.parent.mkdir(parents=True, exist_ok=True)
+        log_file.write_text(f"{datetime.now().isoformat()} - 信息源优化完成\n")
+        return {"message": "信息源优化已完成"}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
+@router.post("/metrics-sync/run")
+def trigger_metrics_sync():
+    try:
+        from ..core.scheduler import scheduler
+        scheduler._run_metrics_sync()
+        log_file = LOGS_DIR / f"metrics_sync_{date.today().isoformat()}.log"
+        log_file.parent.mkdir(parents=True, exist_ok=True)
+        log_file.write_text(f"{datetime.now().isoformat()} - 指标同步完成\n")
+        return {"message": "指标同步已完成"}
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))
+
 @router.get("/automation/topics")
 def list_automation_topics(db: Session = Depends(get_db), current_user=Depends(get_current_user)):
     try:
@@ -187,7 +211,6 @@ def get_modules_status():
     today_str = date.today().isoformat()
     log_based: dict = {
         "scheduled_collect": {"name": "📡 内容采集", "log": LOGS_DIR / f"collector_{today_str}.log"},
-        "scheduled_sync": {"name": "🔄 数据同步", "log": LOGS_DIR / f"sync_{today_str}.log"},
         "scheduled_generate": {"name": "🤖 内容创作", "log": LOGS_DIR / f"creator_{today_str}.log"},
         "scheduled_optimize": {"name": "🔍 内容优化", "log": LOGS_DIR / f"optimizer_{today_str}.log"},
         "scheduled_optimize_sources": {"name": "📡 信息源优化", "log": LOGS_DIR / f"optimizer_sources_{today_str}.log"},
@@ -208,12 +231,21 @@ def get_modules_status():
             total = task_count + content.count("失败") + content.count("failed") + content.count("ERROR")
             success_rate = round(task_count / total * 100) if total > 0 else None
         status = "running" if mod_id in jobs else "stopped"
+        job = jobs.get(mod_id)
+        next_run = None
+        if job and job.get("next_run_time"):
+            try:
+                next_dt = datetime.fromisoformat(job["next_run_time"])
+                next_run = next_dt.strftime("%Y-%m-%d %H:%M")
+            except Exception:
+                next_run = job["next_run_time"]
         modules.append({
             "id": mod_id,
             "title": cfg["name"],
             "status": status,
             "last_run": last_run or "从未运行",
+            "next_run": next_run or "待计划",
             "task_count": task_count,
-            "success_rate": success_rate,
+            "success_rate": success_rate if success_rate is not None else 0,
         })
     return {"modules": modules, "scheduler": {"running": scheduler._started, "jobs": scheduler.get_jobs()}}

platform/backend/app/core/nvidia_client.py

@@ -70,12 +70,26 @@ def _get_provider_config(provider: Optional[str] = None) -> dict:
         "base_url": base_url or fb.get("base_url", ""),
     }
 
+def _get_db_defaults(provider: Optional[str] = None) -> dict:
+    try:
+        from ..database import SessionLocal
+        from ..models import LLMConfig
+        db = SessionLocal()
+        p = provider or _get_active_provider()
+        cfg = db.query(LLMConfig).filter(LLMConfig.provider == p).order_by(LLMConfig.is_active.desc()).first()
+        db.close()
+        if cfg:
+            return {"temperature": cfg.temperature, "max_tokens": cfg.max_tokens}
+    except Exception:
+        pass
+    return {"temperature": 0.20, "max_tokens": 2048}
+
 def call_llm(
     prompt: str,
     model: Optional[str] = None,
     system_prompt: str = "你是一个专业的内容创作助手。",
-    temperature: float = 0.20,
-    max_tokens: int = 2048,
+    temperature: Optional[float] = None,
+    max_tokens: Optional[int] = None,
     top_p: float = 0.70,
     frequency_penalty: float = 0.00,
     presence_penalty: float = 0.00,
@@ -83,6 +97,9 @@ def call_llm(
     provider: Optional[str] = None,
     additional_params: Optional[Dict[str, Any]] = None,
 ) -> str:
+    defaults = _get_db_defaults(provider)
+    temperature = temperature if temperature is not None else defaults["temperature"]
+    max_tokens = max_tokens if max_tokens is not None else defaults["max_tokens"]
     cfg = _get_provider_config(provider)
     endpoint = f"{cfg['base_url'].rstrip('/')}/chat/completions"
     headers = {
@@ -186,7 +203,7 @@ def expand_content_with_llm(
         prompt = f"# 参考资料\n{context}\n\n{prompt}"
 
     try:
-        result = call_llm(prompt, temperature=0.3, max_tokens=1500)
+        result = call_llm(prompt, temperature=0.3)
         return result.strip()
     except Exception as e:
         return f"## {section_title}\n\n（LLM 调用失败：{e}，请手动补充）"

platform/backend/app/core/scheduler.py

@@ -9,7 +9,6 @@ from apscheduler.schedulers.background import BackgroundScheduler
 from apscheduler.triggers.cron import CronTrigger
 from .generator import run_creator
 from .optimizer import run_optimizer
-from .sync import sync_all_topics
 from .collector import run_collector
 
 logger = logging.getLogger(__name__)
@@ -28,17 +27,6 @@ class TaskScheduler:
             self._run_collect,
             CronTrigger(hour=1, minute=30),
             id='scheduled_collect',
-            replace_existing=True,
-            max_instances=1,
-            coalesce=True
-        )
-        self.scheduler.add_job(
-            self._run_sync,
-            CronTrigger(hour=2, minute=30),
-            id='scheduled_sync',
-            replace_existing=True,
-            max_instances=1,
-            coalesce=True
         )
         self.scheduler.add_job(
             self._run_generate,
@@ -176,14 +164,6 @@ class TaskScheduler:
         except Exception as e:
             logger.exception("[Scheduled] Source AI optimization failed: %s", e)
 
-    def _run_sync(self):
-        try:
-            logger.info("[Scheduled] Starting data sync...")
-            sync_all_topics()
-            logger.info("[Scheduled] Sync completed")
-        except Exception as e:
-            logger.exception("[Scheduled] Sync failed: %s", e)
-
     def _run_metrics_sync(self):
         try:
             logger.info("[Scheduled] Starting metrics sync...")

platform/backend/app/database.py

@@ -60,6 +60,7 @@ def init_db():
                 ("platform_configs", "image_height", "INTEGER DEFAULT 0"),
                 ("platform_configs", "min_words", "INTEGER DEFAULT 0"),
                 ("platform_configs", "max_words", "INTEGER DEFAULT 0"),
+                ("platform_configs", "website_url", "VARCHAR"),
             ]:
                 try:
                     conn.execute(text(f"ALTER TABLE {table} ADD COLUMN IF NOT EXISTS {col} {typ}"))

platform/backend/app/initial_data.py

@@ -38,22 +38,20 @@ def import_initial_data():
         # 补充或更新 LLM 供应商配置（opencode-go 为主，nvidia 为备）
         expected = {
             "opencode-go": dict(provider="opencode-go", model="deepseek-v4-flash",
-                base_url="https://opencode.ai/zen/go/v1", temperature=0.7, max_tokens=2000, is_active=True,
+                base_url="https://opencode.ai/zen/go/v1", temperature=0.7, max_tokens=131072, is_active=True,
                 user_prompt_template="将以下内容扩展为完整文章：\n{topic_title}\n{core_concept}"),
             "nvidia": dict(provider="nvidia", model="stepfun-ai/step-3.5-flash",
-                base_url="https://integrate.api.nvidia.com/v1", temperature=0.5, max_tokens=2000, is_active=False,
+                base_url="https://integrate.api.nvidia.com/v1", temperature=0.5, max_tokens=131072, is_active=False,
                 user_prompt_template="将以下内容扩展为完整章节：\n{section_content}"),
         }
         existing = {c.name: c for c in db.query(LLMConfig).all()}
-        # 删除完全无意义的旧残留
-        for name in list(existing.keys()):
-            if name not in expected:
-                db.delete(existing[name]); existing.pop(name)
         for name, cfg in expected.items():
             if name in existing:
                 c = existing[name]
+                # 仅补缺失字段，不覆写用户已修改的值
                 for k, v in cfg.items():
-                    setattr(c, k, v)
+                    if getattr(c, k, None) is None:
+                        setattr(c, k, v)
             else:
                 db.add(LLMConfig(name=name, **cfg))
         db.commit()

platform/backend/app/main.py

@@ -9,7 +9,7 @@ from pathlib import Path
 
 from .database import engine, get_db, init_db
 from .models import Base
-from .api import topics, system, articles, publishing, auth, admin, audit, optimizer_logs, cases, task_logs, llm_configs, system_configs, topic_config, calendar, metrics, assets, tasks, platform_config, collector_mgmt
+from .api import topics, system, articles, publishing, auth, admin, audit, optimizer_logs, cases, task_logs, llm_configs, system_configs, topic_config, calendar, metrics, assets, tasks, platform_config, collector_mgmt, assistant
 from .initial_data import import_initial_data
 from .core.scheduler import scheduler
 
@@ -93,6 +93,7 @@ app.include_router(assets.router)
 app.include_router(tasks.router)
 app.include_router(platform_config.router)
 app.include_router(collector_mgmt.router)
+app.include_router(assistant.router)
 
 # 挂载前端
 FRONTEND_DIR = Path(__file__).parent.parent.parent / "frontend"

platform/backend/app/models.py

@@ -355,6 +355,7 @@ class PlatformConfig(Base):
     platform = Column(String, unique=True, nullable=False)  # zhihu/wechat/xiaohongshu
     name = Column(String, nullable=False)
     icon = Column(String, nullable=True)
+    website_url = Column(String, nullable=True)
     api_endpoint = Column(String, nullable=True)
     auth_config = Column(JSON, default=dict)
     format_template = Column(JSON, default=dict)
@@ -377,6 +378,7 @@ class PlatformConfig(Base):
             "platform": self.platform,
             "name": self.name,
             "icon": self.icon,
+            "website_url": self.website_url,
             "api_endpoint": self.api_endpoint,
             "format_template": self.format_template or {},
             "compliance_rules": self.compliance_rules or {},

platform/backend/app/schemas.py

@@ -257,6 +257,7 @@ class PlatformConfigBase(BaseModel):
     platform: str
     name: str
     icon: Optional[str] = None
+    website_url: Optional[str] = None
     api_endpoint: Optional[str] = None
     auth_config: Dict[str, Any] = {}
     format_template: Dict[str, Any] = {}
@@ -279,6 +280,7 @@ class PlatformConfigCreate(PlatformConfigBase):
 class PlatformConfigUpdate(BaseModel):
     name: Optional[str] = None
     icon: Optional[str] = None
+    website_url: Optional[str] = None
     api_endpoint: Optional[str] = None
     auth_config: Optional[Dict[str, Any]] = None
     format_template: Optional[Dict[str, Any]] = None
@@ -476,7 +478,7 @@ class LLMConfigBase(BaseModel):
     system_prompt: Optional[str] = None
     user_prompt_template: str
     temperature: float = 0.7
-    max_tokens: int = 2000
+    max_tokens: int = 131072
     model: Optional[str] = None
     provider: str = "opencode-go"
     base_url: Optional[str] = None

platform/frontend/admin.html

@@ -25,12 +25,14 @@
                             <el-button size="default" :type="activeTab === 'cases' ? 'primary' : ''" @click="switchTab('cases')">案例管理</el-button>
                             <el-button size="default" :type="activeTab === 'tasklogs' ? 'primary' : ''" @click="switchTab('tasklogs')">任务日志</el-button>
                             <el-button size="default" :type="activeTab === 'llmconfigs' ? 'primary' : ''" @click="switchTab('llmconfigs')">LLM配置</el-button>
+                            <el-button size="default" :type="activeTab === 'platformconfigs' ? 'primary' : ''" @click="switchTab('platformconfigs')">平台配置</el-button>
                             <el-button size="default" :type="activeTab === 'systemconfigs' ? 'primary' : ''" @click="switchTab('systemconfigs')">系统配置</el-button>
                             <el-button size="default" :type="activeTab === 'users' ? 'primary' : ''" @click="switchTab('users')">用户管理</el-button>
                             <el-button size="default" :type="activeTab === 'categories' ? 'primary' : ''" @click="switchTab('categories')">采集类别</el-button>
                             <el-button size="default" :type="activeTab === 'sources' ? 'primary' : ''" @click="switchTab('sources')">信息源</el-button>
                             <el-button size="default" :type="activeTab === 'orgs' ? 'primary' : ''" @click="switchTab('orgs')">组织管理</el-button>
                             <el-button size="default" :type="activeTab === 'logs' ? 'primary' : ''" @click="switchTab('logs')">运行日志</el-button>
+                            <el-button size="default" :type="activeTab === 'assistant' ? 'primary' : ''" @click="switchTab('assistant')">AI 助手</el-button>
                         </div>
                     </div>
 
@@ -53,10 +55,10 @@
                             </div>
                             <el-table :data="paginatedCases" border stripe class="data-table" style="width:100%">
                                 <el-table-column prop="id" label="ID" width="70"></el-table-column>
-                                <el-table-column prop="title" label="标题" min-width="120" :show-overflow-tooltip="true"></el-table-column>
-                                <el-table-column prop="field" label="领域" width="100"></el-table-column>
+                                <el-table-column prop="title" label="标题" min-width="80" :show-overflow-tooltip="true"></el-table-column>
+                                <el-table-column prop="field" label="领域" width="140"></el-table-column>
                                 <el-table-column prop="summary" label="概述" min-width="200" :show-overflow-tooltip="true"></el-table-column>
-                                <el-table-column prop="source" label="来源" width="100"></el-table-column>
+                                <el-table-column prop="source" label="来源" width="140"></el-table-column>
                                 <el-table-column label="操作" width="140" fixed="right">
                                     <template #default="scope">
                                         <el-button size="small" @click="showCaseDialog(scope.row)">编辑</el-button>
@@ -129,18 +131,25 @@
                         </template>
                         <template v-else>
                             <el-table :data="llmConfigs" border stripe class="data-table" style="width:100%">
-                                <el-table-column prop="id" label="ID" width="70"></el-table-column>
-                                <el-table-column prop="name" label="名称" min-width="120"></el-table-column>
-                                <el-table-column prop="model" label="模型" min-width="180"></el-table-column>
-                                <el-table-column prop="temperature" label="温度" width="80"></el-table-column>
-                                <el-table-column prop="max_tokens" label="最大Token" width="110"></el-table-column>
-                                <el-table-column prop="is_active" label="激活" width="70">
+                                <el-table-column prop="id" label="ID" width="60"></el-table-column>
+                                <el-table-column prop="name" label="名称" min-width="100"></el-table-column>
+                                <el-table-column prop="provider" label="供应商" width="110"></el-table-column>
+                                <el-table-column prop="model" label="模型" min-width="160"></el-table-column>
+                                <el-table-column prop="base_url" label="接口地址" min-width="200">
+                                    <template #default="scope">{{ scope.row.base_url ? scope.row.base_url.replace(/^https?:\/\//, '') : '-' }}</template>
+                                </el-table-column>
+                                <el-table-column prop="temperature" label="温度" width="70"></el-table-column>
+                                <el-table-column prop="max_tokens" label="最大Token" width="100"></el-table-column>
+                                <el-table-column prop="is_active" label="激活" width="60">
                                     <template #default="scope">
                                         <el-icon v-if="scope.row.is_active" style="color:#67C23A;"><IconCheck /></el-icon>
                                         <el-icon v-else style="color:#F56C6C;"><IconClose /></el-icon>
                                     </template>
                                 </el-table-column>
-                                <el-table-column label="操作" width="140" fixed="right">
+                                <el-table-column label="系统提示词" min-width="150">
+                                    <template #default="scope">{{ (scope.row.system_prompt || '').slice(0, 30) }}{{ (scope.row.system_prompt || '').length > 30 ? '...' : '' }}</template>
+                                </el-table-column>
+                                <el-table-column label="操作" width="130" fixed="right">
                                     <template #default="scope">
                                         <el-button size="small" @click="showLLMConfigDialog(scope.row)">编辑</el-button>
                                         <el-button size="small" type="danger" @click="deleteLLMConfig(scope.row.id)">删除</el-button>
@@ -151,8 +160,9 @@
                         <div class="card-list-mobile">
                             <div v-for="item in llmConfigs" :key="item.id" class="card-item">
                                 <div class="card-row"><span class="card-label">名称</span><span class="card-value">{{ item.name }}</span></div>
+                                <div class="card-row"><span class="card-label">供应商</span><span class="card-value">{{ item.provider }}</span></div>
                                 <div class="card-row"><span class="card-label">模型</span><span class="card-value">{{ item.model }}</span></div>
-                                <div class="card-row"><span class="card-label">温度</span><span class="card-value">{{ item.temperature }}</span></div>
+                                <div class="card-row"><span class="card-label">温度/最大Token</span><span class="card-value">{{ item.temperature }} / {{ item.max_tokens }}</span></div>
                                 <div class="card-row"><span class="card-label">激活</span><span class="card-value">{{ item.is_active ? '是' : '否' }}</span></div>
                                 <div class="card-actions">
                                     <el-button size="small" @click="showLLMConfigDialog(item)">编辑</el-button>
@@ -162,6 +172,45 @@
                         </div>
                     </div>
 
+                    <div v-if="activeTab === 'platformconfigs'">
+                        <div class="toolbar">
+                            <el-button type="primary" size="small" @click="showPlatformConfigDialog()">新增配置</el-button>
+                        </div>
+                        <div v-if="platformConfigsLoading" class="card-loading">加载中...</div>
+                        <template v-else-if="platformConfigs.length === 0">
+                            <div class="empty-state">
+                                <el-icon style="font-size:48px;color:#c0c4cc;"><IconDocument /></el-icon>
+                                <div class="empty-text">暂无平台配置</div>
+                            </div>
+                        </template>
+                        <template v-else>
+                            <el-table :data="platformConfigs" border stripe class="data-table" style="width:100%">
+                                <el-table-column prop="platform" label="标识" width="80"></el-table-column>
+                                <el-table-column prop="name" label="名称" width="80"></el-table-column>
+                                <el-table-column prop="website_url" label="平台网址" min-width="160">
+                                    <template #default="scope"><a :href="scope.row.website_url" target="_blank" style="color:#409eff;">{{ scope.row.website_url }}</a></template>
+                                </el-table-column>
+                                <el-table-column label="字数范围" width="120">
+                                    <template #default="scope">{{ scope.row.min_words }} - {{ scope.row.max_words }}</template>
+                                </el-table-column>
+                                <el-table-column label="配图" width="100">
+                                    <template #default="scope">{{ scope.row.requires_image ? `${scope.row.image_count_min}-${scope.row.image_count_max}张` : '不需要' }}</template>
+                                </el-table-column>
+                                <el-table-column prop="api_endpoint" label="API地址" min-width="160"></el-table-column>
+                                <el-table-column prop="default_format" label="默认格式" min-width="160">
+                                    <template #default="scope">{{ (scope.row.default_format || '').slice(0, 30) }}{{ (scope.row.default_format || '').length > 30 ? '...' : '' }}</template>
+                                </el-table-column>
+                                <el-table-column prop="is_active" label="激活" width="60">
+                                    <template #default="scope"><el-icon v-if="scope.row.is_active" style="color:#67C23A;"><IconCheck /></el-icon><el-icon v-else style="color:#F56C6C;"><IconClose /></el-icon></template>
+                                </el-table-column>
+                                <el-table-column label="操作" width="100" fixed="right">
+                                    <template #default="scope">
+                                        <el-button size="small" @click="showPlatformConfigDialog(scope.row)">编辑</el-button>
+                                    </template>
+                                </el-table-column>
+                            </el-table>
+                        </template>
+                    </div>
                     <div v-if="activeTab === 'systemconfigs'">
                         <div class="toolbar">
                             <el-button type="primary" size="small" @click="showSystemConfigDialog()">新增配置</el-button>
@@ -396,6 +445,21 @@
                         </div>
                     </div>
 
+                    <div v-if="activeTab === 'assistant'">
+                        <div class="toolbar">
+                            <el-button type="primary" size="small" @click="saveAssistantPrompt" :loading="assistantSaving">保存配置</el-button>
+                            <span style="font-size:13px;color:#909399;margin-left:8px;">AI 助手在各页面右下角显示悬浮按钮，点击可打开对话窗口</span>
+                        </div>
+                        <el-form label-width="120px" style="max-width:700px;margin-top:16px;">
+                            <el-form-item label="系统提示词">
+                                <el-input type="textarea" v-model="assistantPrompt" :rows="12" placeholder="设置 AI 助手的角色和行为说明，留空则使用默认提示词"></el-input>
+                            </el-form-item>
+                            <el-form-item label="启用助手" v-if="false">
+                                <el-switch v-model="assistantEnabled"></el-switch>
+                            </el-form-item>
+                        </el-form>
+                    </div>
+
                     <div v-if="activeTab === 'sources'">
                         <div class="toolbar">
                             <el-button type="primary" size="small" @click="showSourceDialog()">新增信息源</el-button>
@@ -500,7 +564,7 @@
                     <el-col :span="12"><el-form-item label="温度"><el-input-number v-model="llmConfigForm.temperature" :min="0" :max="2" :step="0.1" style="width:100%"/></el-form-item></el-col>
                 </el-row>
                 <el-row :gutter="16">
-                    <el-col :span="12"><el-form-item label="最大Token"><el-input-number v-model="llmConfigForm.max_tokens" :min="1" :max="10000" style="width:100%"/></el-form-item></el-col>
+                    <el-col :span="12"><el-form-item label="最大Token"><el-input-number v-model="llmConfigForm.max_tokens" :min="1" :max="999999" style="width:100%"/></el-form-item></el-col>
                     <el-col :span="12"><el-form-item label="激活"><el-switch v-model="llmConfigForm.is_active"/></el-form-item></el-col>
                 </el-row>
                 <el-row :gutter="16">
@@ -516,6 +580,39 @@
             </template>
         </el-dialog>
 
+        <el-dialog v-model="platformConfigDialogVisible" :title="platformConfigDialogTitle" width="750px" :close-on-click-modal="false">
+            <el-form :model="platformConfigForm" label-width="110px">
+                <el-row :gutter="16">
+                    <el-col :span="8"><el-form-item label="标识"><el-input v-model="platformConfigForm.platform" :disabled="!!editingPlatformConfigPlatform" placeholder="zhihu"/></el-form-item></el-col>
+                    <el-col :span="8"><el-form-item label="名称"><el-input v-model="platformConfigForm.name" placeholder="知乎"/></el-form-item></el-col>
+                    <el-col :span="8"><el-form-item label="图标"><el-input v-model="platformConfigForm.icon" placeholder="📕"/></el-form-item></el-col>
+                </el-row>
+                <el-row :gutter="16">
+                    <el-col :span="12"><el-form-item label="平台网址"><el-input v-model="platformConfigForm.website_url" placeholder="https://www.zhihu.com"/></el-form-item></el-col>
+                    <el-col :span="12"><el-form-item label="API地址"><el-input v-model="platformConfigForm.api_endpoint" placeholder="https://api.zhihu.com"/></el-form-item></el-col>
+                </el-row>
+                <el-row :gutter="16">
+                    <el-col :span="12"><el-form-item label="最少字数"><el-input-number v-model="platformConfigForm.min_words" :min="0" :max="50000" style="width:100%"/></el-form-item></el-col>
+                    <el-col :span="12"><el-form-item label="最多字数"><el-input-number v-model="platformConfigForm.max_words" :min="0" :max="50000" style="width:100%"/></el-form-item></el-col>
+                </el-row>
+                <el-row :gutter="16">
+                    <el-col :span="12"><el-form-item label="需要配图"><el-switch v-model="platformConfigForm.requires_image"/></el-form-item></el-col>
+                    <el-col :span="6"><el-form-item label="最少"><el-input-number v-model="platformConfigForm.image_count_min" :min="0" :max="20" style="width:100%"/></el-form-item></el-col>
+                    <el-col :span="6"><el-form-item label="最多"><el-input-number v-model="platformConfigForm.image_count_max" :min="0" :max="20" style="width:100%"/></el-form-item></el-col>
+                </el-row>
+                <el-row :gutter="16">
+                    <el-col :span="24"><el-form-item label="默认格式"><el-input type="textarea" v-model="platformConfigForm.default_format" :rows="2" placeholder="图文笔记，300-800字，emoji+标签"/></el-form-item></el-col>
+                </el-row>
+                <el-row :gutter="16">
+                    <el-col :span="24"><el-form-item label="活跃"><el-switch v-model="platformConfigForm.is_active"/></el-form-item></el-col>
+                </el-row>
+            </el-form>
+            <template #footer>
+                <el-button @click="platformConfigDialogVisible=false">取消</el-button>
+                <el-button type="primary" @click="savePlatformConfig">确定</el-button>
+            </template>
+        </el-dialog>
+
         <el-dialog v-model="systemConfigDialogVisible" :title="systemConfigDialogTitle" width="600px" :close-on-click-modal="false">
             <el-form :model="systemConfigForm" label-width="80px">
                 <el-row :gutter="16">
@@ -666,7 +763,7 @@
                 const llmConfigsLoading = ref(false);
                 const llmConfigDialogVisible = ref(false);
                 const llmConfigDialogTitle = ref('新增配置');
-                const llmConfigForm = reactive({ id: null, name: '', system_prompt: '', user_prompt_template: '', temperature: 0.7, max_tokens: 2000, model: '', provider: 'opencode-go', base_url: '', api_key: '', is_active: true });
+                const llmConfigForm = reactive({ id: null, name: '', system_prompt: '', user_prompt_template: '', temperature: 0.7, max_tokens: 131072, model: '', provider: 'opencode-go', base_url: '', api_key: '', is_active: true });
                 const editingLLMConfigId = ref(null);
 
                 const loadLLMConfigs = async () => {
@@ -679,14 +776,14 @@
                         llmConfigDialogTitle.value = '编辑配置'; editingLLMConfigId.value = row.id;
                         llmConfigForm.id = row.id; llmConfigForm.name = row.name; llmConfigForm.provider = row.provider || 'opencode-go';
                         llmConfigForm.model = row.model || ''; llmConfigForm.base_url = row.base_url || ''; llmConfigForm.api_key = '';
-                        llmConfigForm.temperature = row.temperature ?? 0.7; llmConfigForm.max_tokens = row.max_tokens ?? 2000;
+                        llmConfigForm.temperature = row.temperature ?? 0.7; llmConfigForm.max_tokens = row.max_tokens ?? 131072;
                         llmConfigForm.system_prompt = row.system_prompt || ''; llmConfigForm.user_prompt_template = row.user_prompt_template || '';
                         llmConfigForm.is_active = row.is_active ?? true;
                     } else {
                         llmConfigDialogTitle.value = '新增配置'; editingLLMConfigId.value = null;
                         llmConfigForm.id = null;                         llmConfigForm.name = ''; llmConfigForm.provider = 'opencode-go'; llmConfigForm.model = 'deepseek-v4-pro';
                         llmConfigForm.base_url = 'https://opencode.ai/zen/go/v1'; llmConfigForm.api_key = ''; llmConfigForm.temperature = 0.7;
-                        llmConfigForm.max_tokens = 2000; llmConfigForm.system_prompt = ''; llmConfigForm.user_prompt_template = ''; llmConfigForm.is_active = true;
+                        llmConfigForm.max_tokens = 131072; llmConfigForm.system_prompt = ''; llmConfigForm.user_prompt_template = ''; llmConfigForm.is_active = true;
                     }
                     llmConfigDialogVisible.value = true;
                 };
@@ -702,6 +799,37 @@
                     catch (e) { if (e !== 'cancel') ElMessage.error('删除失败: ' + e.message); }
                 };
 
+                const platformConfigs = ref([]);
+                const platformConfigsLoading = ref(false);
+                const platformConfigDialogVisible = ref(false);
+                const platformConfigDialogTitle = ref('新增配置');
+                const platformConfigForm = reactive({ platform: '', name: '', icon: '', website_url: '', api_endpoint: '', min_words: 300, max_words: 3000, requires_image: false, image_count_min: 0, image_count_max: 0, default_format: '', is_active: true });
+                const editingPlatformConfigPlatform = ref(null);
+                const loadPlatformConfigs = async () => {
+                    platformConfigsLoading.value = true;
+                    try { platformConfigs.value = await api.get('/api/platform-config'); } catch (e) { ElMessage.error('加载平台配置失败: ' + e.message); }
+                    finally { platformConfigsLoading.value = false; }
+                };
+                const showPlatformConfigDialog = (row = null) => {
+                    if (row) {
+                        platformConfigDialogTitle.value = '编辑配置'; editingPlatformConfigPlatform.value = row.platform;
+                        Object.assign(platformConfigForm, { ...row });
+                    } else {
+                        platformConfigDialogTitle.value = '新增配置'; editingPlatformConfigPlatform.value = null;
+                        platformConfigForm.platform = ''; platformConfigForm.name = ''; platformConfigForm.icon = ''; platformConfigForm.website_url = ''; platformConfigForm.api_endpoint = '';
+                        platformConfigForm.min_words = 300; platformConfigForm.max_words = 3000; platformConfigForm.requires_image = false;
+                        platformConfigForm.image_count_min = 0; platformConfigForm.image_count_max = 0; platformConfigForm.default_format = ''; platformConfigForm.is_active = true;
+                    }
+                    platformConfigDialogVisible.value = true;
+                };
+                const savePlatformConfig = async () => {
+                    try {
+                        if (editingPlatformConfigPlatform.value) { await api.put(`/api/platform-config/${platformConfigForm.platform}`, platformConfigForm); ElMessage.success('更新成功'); }
+                        else { await api.post('/api/platform-config', platformConfigForm); ElMessage.success('创建成功'); }
+                        platformConfigDialogVisible.value = false; await loadPlatformConfigs();
+                    } catch (e) { ElMessage.error('保存失败: ' + e.message); }
+                };
+
                 const systemConfigs = ref([]);
                 const systemConfigsLoading = ref(false);
                 const systemConfigDialogVisible = ref(false);
@@ -841,6 +969,25 @@
                     catch (e) { if (e !== 'cancel') ElMessage.error('删除失败: ' + e.message); }
                 };
 
+                const assistantPrompt = ref('');
+                const assistantEnabled = ref(true);
+                const assistantSaving = ref(false);
+                const loadAssistantConfig = async () => {
+                    try {
+                        const configs = await api.get('/api/admin/systemconfigs');
+                        const cfg = configs.find(c => c.key === 'assistant_system_prompt');
+                        assistantPrompt.value = cfg ? (typeof cfg.value === 'string' ? cfg.value : '') : '';
+                    } catch (e) { console.error('加载AI助手配置失败', e); }
+                };
+                const saveAssistantPrompt = async () => {
+                    assistantSaving.value = true;
+                    try {
+                        await api.post('/api/admin/systemconfigs', { key: 'assistant_system_prompt', value: assistantPrompt.value, description: 'AI 助手系统提示词' });
+                        ElementPlus.ElMessage.success('保存成功');
+                    } catch (e) { ElementPlus.ElMessage.error('保存失败: ' + e.message); }
+                    finally { assistantSaving.value = false; }
+                };
+
                 const loadCategories = async () => {
                     categoriesLoading.value = true;
                     try { categories.value = await api.get('/api/admin/collector/categories'); } catch (e) { ElMessage.error('加载类别失败: ' + e.message); }
@@ -896,10 +1043,10 @@
 
                 const tabLoaders = {
                     cases: loadCases, tasklogs: loadTaskLogs,
-                    llmconfigs: loadLLMConfigs, systemconfigs: loadSystemConfigs,
+                    llmconfigs: loadLLMConfigs, platformconfigs: loadPlatformConfigs, systemconfigs: loadSystemConfigs,
                     users: fetchUsers,
                     categories: loadCategories, sources: loadSources,
-                    orgs: loadOrgs,
+                    orgs: loadOrgs, assistant: loadAssistantConfig,
                 };
                 const loadedTabs = new Set(['cases']);
 
@@ -924,6 +1071,7 @@
                     casePage, casePageSize, paginatedCases,
                     taskLogs, taskLogsLoading, loadTaskLogs,
                     llmConfigs, llmConfigsLoading, llmConfigDialogVisible, llmConfigForm, llmConfigDialogTitle, showLLMConfigDialog, saveLLMConfig, deleteLLMConfig,
+                    platformConfigs, platformConfigsLoading, platformConfigDialogVisible, platformConfigForm, platformConfigDialogTitle, showPlatformConfigDialog, savePlatformConfig, editingPlatformConfigPlatform,
                     systemConfigs, systemConfigsLoading, systemConfigDialogVisible, systemConfigForm, systemConfigDialogTitle, showSystemConfigDialog, saveSystemConfig, deleteSystemConfig,
                     categories, categoriesLoading, categoryDialogVisible, categoryForm, categoryDialogTitle, showCategoryDialog, saveCategory, deleteCategory,
                     categoryPage, categoryPageSize, paginatedCategories,
@@ -934,7 +1082,8 @@
                     logout, currentUser, isAdmin, redirectToPage,
                     users, usersLoading, userDialogVisible, userSubmitting, userForm, userPage, userPageSize, paginatedUsers,
                     fetchUsers, addUser, submitUser, deleteUser,
-                    logType, logDate, logContent, logsLoading, fetchLogs
+                    logType, logDate, logContent, logsLoading, fetchLogs,
+                    assistantPrompt, assistantEnabled, assistantSaving, saveAssistantPrompt,
                 };
             }
         });
@@ -944,5 +1093,6 @@
         if (window.installUniNav) { window.installUniNav(app); }
         app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/ai-assistant.js

@@ -0,0 +1,361 @@
+(function () {
+  if (document.getElementById('ai-assistant-styles')) return;
+
+  var style = document.createElement('style');
+  style.id = 'ai-assistant-styles';
+  style.textContent = '\
+.ai-assistant-btn {\
+  position: fixed; bottom: 24px; right: 24px;\
+  z-index: 99999;\
+  width: 52px; height: 52px;\
+  border-radius: 50%;\
+  background: linear-gradient(135deg, #2563eb, #1d4ed8);\
+  color: #fff;\
+  border: none;\
+  cursor: pointer;\
+  box-shadow: 0 4px 16px rgba(37,99,235,0.35);\
+  display: flex; align-items: center; justify-content: center;\
+  font-size: 22px;\
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);\
+}\
+.ai-assistant-btn:hover { transform: scale(1.1); box-shadow: 0 6px 24px rgba(37,99,235,0.45); }\
+.ai-assistant-btn.open { transform: rotate(45deg); background: #f56c6c; box-shadow: 0 4px 16px rgba(245,108,108,0.35); }\
+.ai-assistant-panel {\
+  position: fixed; bottom: 88px; right: 24px;\
+  z-index: 99998;\
+  width: 380px; height: 560px;\
+  background: #fff;\
+  border-radius: 16px;\
+  box-shadow: 0 8px 40px rgba(0,0,0,0.15);\
+  display: none;\
+  flex-direction: column;\
+  overflow: hidden;\
+  animation: aiSlideUp 0.3s ease-out;\
+  border: 1px solid #e5e7eb;\
+}\
+.ai-assistant-panel.open { display: flex; }\
+@keyframes aiSlideUp {\
+  from { opacity: 0; transform: translateY(20px) scale(0.95); }\
+  to { opacity: 1; transform: translateY(0) scale(1); }\
+}\
+.ai-assistant-header {\
+  padding: 14px 16px;\
+  background: linear-gradient(135deg, #2563eb, #1d4ed8);\
+  color: #fff;\
+  font-weight: 600;\
+  font-size: 15px;\
+  display: flex; align-items: center; gap: 8px;\
+  flex-shrink: 0;\
+}\
+.ai-assistant-header .ai-badge {\
+  background: rgba(255,255,255,0.2);\
+  padding: 2px 8px; border-radius: 10px;\
+  font-size: 10px; font-weight: 400;\
+}\
+.ai-assistant-messages {\
+  flex: 1; overflow-y: auto;\
+  padding: 12px 16px;\
+  background: #f8f9fb;\
+  display: flex; flex-direction: column; gap: 10px;\
+}\
+.ai-assistant-msg {\
+  max-width: 85%;\
+  padding: 10px 14px;\
+  border-radius: 12px;\
+  font-size: 13px;\
+  line-height: 1.6;\
+  word-break: break-word;\
+  white-space: pre-wrap;\
+}\
+.ai-assistant-msg.ai {\
+  background: #fff;\
+  border: 1px solid #e5e7eb;\
+  color: #303133;\
+  align-self: flex-start;\
+  border-bottom-left-radius: 4px;\
+}\
+.ai-assistant-msg.user {\
+  background: #2563eb;\
+  color: #fff;\
+  align-self: flex-end;\
+  border-bottom-right-radius: 4px;\
+}\
+.ai-assistant-msg .msg-time {\
+  font-size: 10px; opacity: 0.6;\
+  margin-top: 4px; display: block;\
+}\
+.ai-assistant-typing {\
+  align-self: flex-start;\
+  display: flex; gap: 4px;\
+  padding: 12px 16px;\
+  background: #fff;\
+  border: 1px solid #e5e7eb;\
+  border-radius: 12px;\
+  border-bottom-left-radius: 4px;\
+}\
+.ai-assistant-typing span {\
+  width: 6px; height: 6px;\
+  background: #909399;\
+  border-radius: 50%;\
+  animation: aiBounce 1.4s ease-in-out infinite;\
+}\
+.ai-assistant-typing span:nth-child(2) { animation-delay: 0.2s; }\
+.ai-assistant-typing span:nth-child(3) { animation-delay: 0.4s; }\
+@keyframes aiBounce {\
+  0%, 60%, 100% { transform: translateY(0); }\
+  30% { transform: translateY(-6px); }\
+}\
+.ai-assistant-input {\
+  display: flex; align-items: center;\
+  padding: 10px 12px;\
+  border-top: 1px solid #e5e7eb;\
+  background: #fff;\
+  flex-shrink: 0;\
+  gap: 8px;\
+}\
+.ai-assistant-input textarea {\
+  flex: 1;\
+  border: 1px solid #d1d5db;\
+  border-radius: 8px;\
+  padding: 8px 12px;\
+  font-size: 13px;\
+  outline: none;\
+  resize: none;\
+  height: 36px;\
+  line-height: 20px;\
+  font-family: inherit;\
+  transition: border-color 0.2s;\
+}\
+.ai-assistant-input textarea:focus { border-color: #2563eb; }\
+.ai-assistant-send {\
+  width: 36px; height: 36px;\
+  border-radius: 8px;\
+  background: #2563eb;\
+  color: #fff;\
+  border: none;\
+  cursor: pointer;\
+  font-size: 16px;\
+  display: flex; align-items: center; justify-content: center;\
+  transition: all 0.2s;\
+  flex-shrink: 0;\
+}\
+.ai-assistant-send:hover { background: #1d4ed8; }\
+.ai-assistant-send:disabled { background: #c0c4cc; cursor: not-allowed; }\
+.ai-assistant-greeting {\
+  text-align: center;\
+  padding: 20px 16px;\
+  color: #909399;\
+  font-size: 13px;\
+}\
+.ai-assistant-greeting .greeting-icon {\
+  font-size: 36px; margin-bottom: 8px;\
+}\
+.ai-assistant-greeting h4 {\
+  color: #303133; font-size: 15px;\
+  margin: 0 0 6px;\
+}\
+@media (max-width: 480px) {\
+  .ai-assistant-panel {\
+    right: 12px; left: 12px;\
+    width: auto;\
+    height: 480px;\
+    bottom: 80px;\
+  }\
+  .ai-assistant-btn { right: 16px; bottom: 16px; }\
+}\
+  ';
+  document.head.appendChild(style);
+
+  var token = localStorage.getItem('authToken');
+  if (!token) return;
+
+  var pageMap = {
+    '/': 'dashboard', '/index.html': 'dashboard',
+    'topics.html': 'topics', 'metrics.html': 'metrics',
+    'calendar.html': 'calendar', 'assets.html': 'assets',
+    'tasks.html': 'tasks', 'platforms.html': 'platforms',
+    'admin.html': 'admin'
+  };
+  var path = window.location.pathname;
+  var currentPage = pageMap[path] || pageMap['/'];
+
+  var greettings = {
+    'dashboard': '👋 欢迎回来！我可以帮你了解仪表盘上的统计数据、模块状态的含义，或指导你如何快速定位待处理选题。',
+    'topics': '📝 这里是选题管理。我可以帮你了解如何创建选题、设置评分、编辑内容，或如何使用预览功能查看各平台文章效果。',
+    'metrics': '📊 数据分析页展示内容表现。我可以帮你解读图表数据、分析各平台效果差异，或建议如何提升内容互动率。',
+    'calendar': '📅 内容日历帮你规划发布节奏。我可以教你如何创建计划、调整日期，或优化内容排期策略。',
+    'assets': '🖼️ 素材库管理图片和文件。我可以指导你如何上传素材、添加标签分类，或关联到相关选题。',
+    'tasks': '⚡ 任务页面跟踪所有创作任务。我可以解释各任务的含义、查看执行进度，或排查任务失败原因。',
+    'platforms': '🔗 平台配置管理各发布渠道。我可以帮你了解如何配置平台参数、设置发布格式。',
+    'admin': '⚙️ 系统管理页面。我可以帮你管理用户、配置 LLM、查看运行日志，或设置采集类别和信息源。',
+  };
+
+  var HISTORY_KEY = 'ai_assistant_history_' + currentPage;
+  var saved = [];
+  try { saved = JSON.parse(localStorage.getItem(HISTORY_KEY)) || []; } catch(e) {}
+
+  var container = document.createElement('div');
+  container.innerHTML = '\
+    <button class="ai-assistant-btn" id="aiAssistantBtn" title="AI 助手">\
+      <svg width="22" height="22" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">\
+        <path d="M12 2a4 4 0 0 1 4 4v2a4 4 0 0 1-8 0V6a4 4 0 0 1 4-4z"/>\
+        <path d="M16 14H8a4 4 0 0 0-4 4v2h16v-2a4 4 0 0 0-4-4z"/>\
+        <circle cx="9" cy="10" r="1" fill="currentColor"/>\
+        <circle cx="15" cy="10" r="1" fill="currentColor"/>\
+        <path d="M12 14v2"/>\
+      </svg>\
+    </button>\
+    <div class="ai-assistant-panel" id="aiAssistantPanel">\
+      <div class="ai-assistant-header">\
+        <span>🤖 AI 助手</span>\
+        <span class="ai-badge">' + currentPage + '</span>\
+      </div>\
+      <div class="ai-assistant-messages" id="aiMessages">\
+      </div>\
+      <div class="ai-assistant-input">\
+        <textarea id="aiInput" rows="1" placeholder="输入你的问题..." maxlength="500"></textarea>\
+        <button class="ai-assistant-send" id="aiSendBtn">\
+          <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">\
+            <line x1="22" y1="2" x2="11" y2="13"/>\
+            <polygon points="22 2 15 22 11 13 2 9 22 2"/>\
+          </svg>\
+        </button>\
+      </div>\
+    </div>\
+  ';
+  document.body.appendChild(container);
+
+  var btn = document.getElementById('aiAssistantBtn');
+  var panel = document.getElementById('aiAssistantPanel');
+  var messagesEl = document.getElementById('aiMessages');
+  var input = document.getElementById('aiInput');
+  var sendBtn = document.getElementById('aiSendBtn');
+
+  function addMessage(role, content) {
+    var div = document.createElement('div');
+    div.className = 'ai-assistant-msg ' + role;
+    div.textContent = content;
+    messagesEl.appendChild(div);
+    messagesEl.scrollTop = messagesEl.scrollHeight;
+  }
+
+  function showGreeting() {
+    messagesEl.innerHTML = '\
+      <div class="ai-assistant-greeting">\
+        <div class="greeting-icon">🤖</div>\
+        <h4>宇之然 AI 助手</h4>\
+        <p>' + (greettings[currentPage] || '👋 你好！有什么可以帮助你的？') + '</p>\
+      </div>';
+  }
+
+  function showTyping() {
+    var div = document.createElement('div');
+    div.className = 'ai-assistant-typing';
+    div.id = 'aiTyping';
+    div.innerHTML = '<span></span><span></span><span></span>';
+    messagesEl.appendChild(div);
+    messagesEl.scrollTop = messagesEl.scrollHeight;
+  }
+
+  function removeTyping() {
+    var t = document.getElementById('aiTyping');
+    if (t) t.remove();
+  }
+
+  function saveHistory(history) {
+    try {
+      localStorage.setItem(HISTORY_KEY, JSON.stringify(history.slice(-50)));
+    } catch(e) {}
+  }
+
+  async function sendMessage(text) {
+    if (!text.trim()) return;
+    input.value = '';
+    input.style.height = '36px';
+    addMessage('user', text);
+    if (messagesEl.querySelector('.ai-assistant-greeting')) {
+      messagesEl.querySelector('.ai-assistant-greeting').remove();
+    }
+    sendBtn.disabled = true;
+
+    var history = [];
+    var msgs = messagesEl.querySelectorAll('.ai-assistant-msg');
+    msgs.forEach(function(m) {
+      history.push({ role: m.classList.contains('user') ? 'user' : 'assistant', content: m.textContent });
+    });
+
+    showTyping();
+    try {
+      var resp = await fetch('/api/assistant/chat', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json', 'Authorization': 'Bearer ' + token },
+        body: JSON.stringify({ message: text, page: currentPage, history: history })
+      });
+      removeTyping();
+      if (resp.ok) {
+        var data = await resp.json();
+        addMessage('assistant', data.reply || '已收到');
+        saveHistory(history.concat([
+          { role: 'user', content: text },
+          { role: 'assistant', content: data.reply || '已收到' }
+        ]));
+      } else {
+        addMessage('assistant', '抱歉，请求失败，请稍后重试。');
+      }
+    } catch(e) {
+      removeTyping();
+      addMessage('assistant', '网络异常，请检查连接后重试。');
+    }
+    sendBtn.disabled = false;
+    input.focus();
+  }
+
+  // Open/close
+  var isOpen = false;
+  btn.addEventListener('click', function() {
+    isOpen = !isOpen;
+    btn.classList.toggle('open', isOpen);
+    panel.classList.toggle('open', isOpen);
+    if (isOpen) {
+      var msgs = messagesEl.querySelectorAll('.ai-assistant-msg');
+      if (msgs.length === 0) {
+        // Load saved or show greeting
+        if (saved.length > 0) {
+          saved.forEach(function(m) { addMessage(m.role, m.content); });
+        } else {
+          showGreeting();
+        }
+      }
+      input.focus();
+    }
+  });
+
+  // Send on click
+  sendBtn.addEventListener('click', function() { sendMessage(input.value); });
+
+  // Send on Enter (Shift+Enter for newline)
+  input.addEventListener('keydown', function(e) {
+    if (e.key === 'Enter' && !e.shiftKey) {
+      e.preventDefault();
+      sendMessage(input.value);
+    }
+  });
+
+  // Auto-resize textarea
+  input.addEventListener('input', function() {
+    this.style.height = '36px';
+    this.style.height = Math.min(this.scrollHeight, 120) + 'px';
+  });
+
+  // Close on Escape
+  document.addEventListener('keydown', function(e) {
+    if (e.key === 'Escape' && isOpen) {
+      isOpen = false;
+      btn.classList.remove('open');
+      panel.classList.remove('open');
+    }
+  });
+
+  window.aiAssistantOpen = function() { btn.click(); };
+  window.aiAssistantClose = function() { if (isOpen) btn.click(); };
+})();

platform/frontend/articles.html

@@ -257,5 +257,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/assets.html

@@ -246,5 +246,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/calendar.html

@@ -96,9 +96,9 @@
                     <div class="calendar-header">
                         <h2 class="calendar-title"><el-icon style="vertical-align:-2px;"><IconCalendar /></el-icon> 内容日历</h2>
                         <div class="calendar-nav">
-                            <el-button @click="prevMonth" size="large"><el-icon><IconArrowLeft /></el-icon></el-button>
+                            <el-button @click="prevMonth" size="large"><el-icon><IconArrowLeft /></el-icon> 上月</el-button>
                             <span style="font-size: 20px; font-weight: 600;">{{ currentYear }}年 {{ currentMonth }}月</span>
-                            <el-button @click="nextMonth" size="large"><el-icon><IconArrowRight /></el-icon></el-button>
+                            <el-button @click="nextMonth" size="large">下月 <el-icon><IconArrowRight /></el-icon></el-button>
                             <el-button type="primary" @click="goToday">今天</el-button>
                         </div>
                     </div>
@@ -490,5 +490,6 @@ function getDayMeta(year, month, day) {
         if (window.installUniNav) { window.installUniNav(app); }
         app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/index.html

@@ -102,8 +102,13 @@
                             </div>
                             <div class="module-content">
                                 <div><span>最后运行</span><span>{{ mod.last_run }}</span></div>
+                                <div><span>下次运行</span><span>{{ mod.next_run }}</span></div>
                                 <div><span>今日任务</span><span>{{ mod.task_count }} 个</span></div>
-                                <div v-if="mod.success_rate !== null"><span>成功率</span><span>{{ mod.success_rate }}%</span></div>
+                                <div><span>成功率</span><span>{{ mod.success_rate > 0 ? mod.success_rate + '%' : '暂无' }}</span></div>
+                                <div style="margin-top:10px; border-bottom:none;">
+                                    <el-button v-if="mod.id === 'scheduled_optimize_sources'" size="small" type="primary" @click="triggerModule(mod.id)" :loading="runningModule === mod.id">立即运行</el-button>
+                                    <el-button v-if="mod.id === 'scheduled_metrics_sync'" size="small" type="primary" @click="triggerModule(mod.id)" :loading="runningModule === mod.id">立即运行</el-button>
+                                </div>
                             </div>
                         </div>
                     </div>
@@ -158,7 +163,8 @@
                     schedulerStatus: '',
                     schedulerRunning: false,
                     upcomingEntries: [],
-                    loadingPlan: false
+                    loadingPlan: false,
+                    runningModule: null
                 };
             },
             methods: {
@@ -276,6 +282,24 @@
                     const url = filter ? '/topics.html?filter=' + encodeURIComponent(filter) : '/topics.html';
                     window.location.href = url;
                 },
+                async triggerModule(modId) {
+                    this.runningModule = modId;
+                    try {
+                        const token = localStorage.getItem('authToken');
+                        const endpoint = modId === 'scheduled_optimize_sources' ? '/api/system/optimize-sources/run' : '/api/system/metrics-sync/run';
+                        const resp = await fetch(endpoint, { method: 'POST', headers: { 'Authorization': 'Bearer ' + token } });
+                        if (resp.ok) {
+                            const data = await resp.json();
+                            this.$message.success(data.message || '执行成功');
+                            this.fetchModules();
+                        } else {
+                            const err = await resp.json().catch(() => ({}));
+                            this.$message.error(err.detail || '执行失败');
+                        }
+                    } catch (e) {
+                        this.$message.error('执行失败: ' + e.message);
+                    } finally { this.runningModule = null; }
+                },
                 redirectToPage(page) {
                     window.location.href = page.startsWith('/') ? page : '/' + page;
                 }
@@ -312,5 +336,6 @@
     if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/metrics.html

@@ -369,5 +369,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/platforms.html

@@ -246,5 +246,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/tasks.html

@@ -292,5 +292,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>

platform/frontend/topics.html

@@ -8,6 +8,9 @@
     <link rel="stylesheet" href="theme-modern.css">
     <style>
         .selected-count { color: var(--color-text-secondary); font-size: var(--font-size-body); margin-left: auto; }
+        .preview-dialog-custom .el-dialog__body { overflow-y: auto; max-height: calc(90vh - 120px); padding: 16px 20px; }
+        .preview-dialog-custom .preview-body { max-height: none !important; min-height: 300px; overflow: visible; }
+        .preview-dialog-custom .preview-body img { max-width: 100%; }
         .topic-card-list { display: none; }
         @media (max-width: 768px) {
             .el-table { display: none; }
@@ -50,7 +53,7 @@
                         <el-button size="default" :type="filterStatus === 'ready' ? 'primary' : ''" @click="filterStatus = 'ready'; fetchTopics()">待发布 ({{ statusStats.ready }})</el-button>
                         <el-button size="default" :type="filterStatus === 'published' ? 'primary' : ''" @click="filterStatus = 'published'; fetchTopics()">已发布 ({{ statusStats.published }})</el-button>
                     </div>
-                    <el-table :data="paginatedTopics" stripe v-loading="loadingTable" @selection-change="selectedTopicIds = $event.map(item => item.id)">
+                    <el-table ref="topicTable" :data="paginatedTopics" stripe v-loading="loadingTable" @selection-change="selectedTopicIds = $event.map(item => item.id)">
                         <el-table-column type="selection" width="55"></el-table-column>
                         <el-table-column prop="id" label="ID" width="70" fixed></el-table-column>
                         <el-table-column prop="title" label="标题" min-width="200"></el-table-column>
@@ -160,7 +163,7 @@
                     </div>
                 </div>
                 <div style="width:100%;">
-                    <div v-if="!editing" class="preview-body" style="min-height:300px; height:68vh; border:1px solid #ebeef5; border-radius:8px; background:#fff; padding:20px; overflow-y:auto; width:100%; line-height:1.8;" v-html="currentPreviewBody"></div>
+                    <div v-if="!editing" class="preview-body" style="border:1px solid #ebeef5; border-radius:8px; background:#fff; padding:20px; width:100%; line-height:1.8;" v-html="currentPreviewBody"></div>
                     <div v-else ref="editor" contenteditable="true" style="min-height:300px; height:68vh; border:1px solid #409eff; border-radius:8px; background:#fff; padding:20px; overflow-y:auto; width:100%; line-height:1.8; outline:none; box-shadow:0 0 0 2px rgba(64,158,255,0.2);" @input="editContent = $event.target.innerHTML"></div>
                 </div>
             </div>
@@ -237,11 +240,13 @@ const TopicsApp = {
         currentPreviewBody() {
             const html = this.platformContents[this.previewPlatform];
             if (!html) return '';
+            if (html.length < 50) return '<div style="padding:40px;text-align:center;color:#909399;"><p style="font-size:36px;margin:0 0 12px;">📝</p><p>该平台内容暂未生成或内容为空</p><p style="font-size:13px;margin-top:8px;">可点击上方「批量创作」重新生成，或在编辑模式下手动添加内容</p></div>';
             try {
                 const parser = new DOMParser();
                 const doc = parser.parseFromString(html, 'text/html');
                 const body = doc.body;
                 if (!body) return html;
+                if (body.innerHTML.length < 30) return '<div style="padding:40px;text-align:center;color:#909399;"><p style="font-size:36px;margin:0 0 12px;">📝</p><p>内容为空，请编辑或重新生成</p></div>';
                 body.querySelectorAll('script, nav, .header, .tags, footer, .interaction').forEach(el => el.remove());
                 return body.innerHTML;
             } catch (e) { console.error('解析 HTML 失败:', e); return html; }
@@ -340,8 +345,18 @@ const TopicsApp = {
         },
         platformName(platform) { return { zhihu: '知乎', wechat: '微信公众号', xiaohongshu: '小红书' }[platform] || platform; },
         copyContent(platform) {
-            if (!this.previewTopic || !this.previewTopic.content) { this.$message.warning('暂无内容可复制'); return; }
-            navigator.clipboard.writeText(`标题：${this.previewTopic.title}\n\n内容：\n${this.previewTopic.content}`)
+            const html = this.platformContents[platform];
+            if (!html) { this.$message.warning('暂无内容可复制'); return; }
+            const parser = new DOMParser();
+            const doc = parser.parseFromString(html, 'text/html');
+            const titleEl = doc.querySelector('h1');
+            const title = titleEl ? titleEl.textContent.trim() : (this.previewTopic?.title || '');
+            const body = doc.body;
+            if (body) {
+                body.querySelectorAll('script, nav, .header, .tags, footer, .interaction').forEach(el => el.remove());
+            }
+            const text = body ? body.textContent.trim() : html.replace(/<[^>]+>/g, '').trim();
+            navigator.clipboard.writeText(`标题：${title}\n\n内容：\n${text}`)
                 .then(() => this.$message.success(`已复制内容，请前往${platform}粘贴发布`))
                 .catch(() => this.$message.error('复制失败，请手动复制'));
         },
@@ -433,13 +448,12 @@ const TopicsApp = {
             }
         },
         toggleSelectAll() {
-            const visible = this.filteredTopics.map(t => t.id);
-            const allChecked = visible.every(id => this.selectedTopicIds.includes(id));
-            if (allChecked) {
-                this.selectedTopicIds = this.selectedTopicIds.filter(id => !visible.includes(id));
-            } else {
-                const existing = new Set(this.selectedTopicIds);
-                for (const id of visible) { if (!existing.has(id)) { this.selectedTopicIds.push(id); } }
+            const table = this.$refs.topicTable;
+            if (!table) return;
+            const visible = this.filteredTopics;
+            const allChecked = visible.every(t => this.selectedTopicIds.includes(t.id));
+            for (const row of visible) {
+                table.toggleRowSelection(row, !allChecked);
             }
         },
         formatDate(dateStr) {
@@ -467,5 +481,6 @@ if (window.installIcons) { window.installIcons(app); }
 if (window.installUniNav) { window.installUniNav(app); }
 app.mount('#app');
     </script>
+    <script src="ai-assistant.js"></script>
 </body>
 </html>