docs: 文档清理与重构 — 统一为 3 个核心文档

- 删除 5 个过时/残留文档(project_plan/agent_prompt/optimization_plan/report_db_design/deploy/README)
- 新建 docs/architecture.md(项目架构:11 包职责+数据模型+配置+产物)
- 重写 docs/user-guide.md(CLI 全量+增量/断点续跑+MCP+FAQ)
- 重写 README.md(精简入口+文档索引)
- 更新 continuation.md(追加本次记录)
- 更新 .gitignore(排除 data/* 运行产物)

deploy/a-share-research.service

@@ -0,0 +1,24 @@
+[Unit]
+Description=A 股 Deep Research 定时调度
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+User=pi
+Group=pi
+WorkingDirectory=/home/pi/cc-projects/news
+ExecStart=/home/pi/cc-projects/news/.venv/bin/python -m scripts.run_scheduler
+Restart=always
+RestartSec=30
+
+# 日志
+StandardOutput=append:/home/pi/cc-projects/news/logs/scheduler-stdout.log
+StandardError=append:/home/pi/cc-projects/news/logs/scheduler-stderr.log
+
+# 环境变量
+Environment="PATH=/home/pi/cc-projects/news/.venv/bin:/usr/local/bin:/usr/bin:/bin"
+Environment="TZ=Asia/Shanghai"
+
+[Install]
+WantedBy=multi-user.target

deploy/crontab.example

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+# A 股 Deep Research 定时调度 (crontab)
+# 替代 APScheduler 守护进程，更简单可靠
+#
+# 安装: crontab deploy/crontab.example
+# 查看: crontab -l
+# 编辑: crontab -e
+# 清空: crontab -r
+#
+# 日志: logs/scheduler-cron.log
+
+SHELL=/bin/zsh
+PATH=/usr/local/bin:/usr/bin:/bin
+TZ=Asia/Shanghai
+
+# 注意: 所有命令的 --date 使用 "" (cron 运行时自动取当天)
+
+# ============================================================
+# 每日 4 次定时任务
+# ============================================================
+
+# 07:00 — 首次抓取 + 日报
+0 7 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share pipeline --once --report --steps crawler,extractor,dedup,llm,embedding,qdrant >> logs/scheduler-cron.log 2>&1
+
+# 12:00 — 午间补充抓取(不含日报)
+0 12 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share pipeline --once --steps crawler,extractor,dedup,llm,embedding,qdrant >> logs/scheduler-cron.log 2>&1
+
+# 18:00 — 收盘后抓取(不含日报)
+0 18 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share pipeline --once --steps crawler,extractor,dedup,llm,embedding,qdrant >> logs/scheduler-cron.log 2>&1
+
+# 22:00 — 晚间抓取(不含日报)
+0 22 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share pipeline --once --steps crawler,extractor,dedup,llm,embedding,qdrant >> logs/scheduler-cron.log 2>&1
+
+# ============================================================
+# cninfo 公告管道(每日 06:30,日报前)
+# ============================================================
+# 30 6 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share pipeline --cninfo-once >> logs/scheduler-cron.log 2>&1
+
+# ============================================================
+# 个股日报(每日 07:30,日报之后)
+# ============================================================
+# 30 7 * * * cd /Users/summer/Downloads/cc-projects/news && uv run a-share stock-report >> logs/scheduler-cron.log 2>&1