feat: 代码选定叙事轴并注入 Agent 开场约束

Co-authored-by: Cursor <cursoragent@cursor.com>

daily/agent_workflow.py

@@ -59,11 +59,41 @@ def _extract_markdown(text: str) -> str:
 
 
 def analyze_trends(llm_input: dict[str, Any], *, date_str: str) -> dict[str, Any] | None:
+    from daily.config import theme_ban_days
+    from daily.narrative_axis import (
+        enforce_narrative_axis,
+        load_recent_axes,
+        load_recent_theme_summaries,
+        pick_narrative_axis,
+    )
+
     skill = _load_skill()
+    featured_note = ""
+    if llm_input.get("featured_pick"):
+        featured_note = (
+            "\n输入已含 **featured_pick**（编辑指定今日首推）；"
+            "top_picks.skill 必须以 featured_pick 为准；"
+            "why/opening 不得向读者提及「编辑指定」。\n"
+        )
+    used_axes = set(load_recent_axes(date_str))
+    axis = pick_narrative_axis(used_axes)
+    llm_input["required_narrative_axis"] = axis
+    llm_input["narrative_axis"] = axis
+    theme_ban = load_recent_theme_summaries(date_str, theme_ban_days())
+    ban_note = ""
+    if theme_ban:
+        ban_note = (
+            "\n近几日已用过的主题/导语（请软避开同类开场，勿原样复用）：\n- "
+            + "\n- ".join(theme_ban)
+            + "\n"
+        )
     system = (
         f"{skill}\n\n"
+        f"{featured_note}"
+        f"{ban_note}"
         "当前执行 **Step 1：趋势分析**。\n"
-        "只输出 trends JSON（headline, opening, themes, top_picks, signals），不要 Markdown。"
+        f"**required_narrative_axis** = `{axis}`；输出 JSON 必须含 `narrative_axis` 且等于该值。\n"
+        "只输出 trends JSON（headline, opening, themes, top_picks, signals, narrative_axis），不要 Markdown。"
     )
     user = json.dumps(llm_input, ensure_ascii=False, indent=2)
     try:
@@ -77,8 +107,9 @@ def analyze_trends(llm_input: dict[str, Any], *, date_str: str) -> dict[str, Any
     if not parsed.get("headline") and not parsed.get("opening"):
         logger.warning("Agent Step1 JSON 无效")
         return None
+    parsed = enforce_narrative_axis(parsed, axis)
     save_json(trends_json_path(date_str), parsed)
-    logger.info("Agent Step1 完成：%s", parsed.get("headline", "?"))
+    logger.info("Agent Step1 完成：%s [%s]", parsed.get("headline", "?"), axis)
     return parsed
 
 
@@ -91,8 +122,17 @@ def write_wecom_report(
     updated: str,
 ) -> str | None:
     skill = _load_skill()
+    featured_note = ""
+    if llm_input.get("featured_pick"):
+        featured_note = (
+            "\n输入 data 已含 **featured_pick**；"
+            "今日首推区块须使用 featured_pick.why_today；"
+            "链接行用 Markdown [标题](URL)，勿用反引号裸 URL；"
+            "读者可见文案不得出现「编辑指定」等元信息。\n"
+        )
     system = (
         f"{skill}\n\n"
+        f"{featured_note}"
         "当前执行 **Step 2：撰写企微早报**。\n"
         f"日期={date_str}，时间={time_str}，数据截至={updated}。\n"
         "只输出企微 Markdown 正文，不要代码块，不要 JSON。"