add monthly revenue and PE/PBR query scripts

- twse-monthly-revenue.py: fetch monthly revenue from Yahoo Finance TW via Browserless (MOPS blocks direct API)
- twse-pe-pbr.py: fetch PE ratio, PBR, dividend yield from TWSE BWIBBU API

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/twse-pe-pbr.py

@@ -0,0 +1,112 @@
+#!/usr/bin/env python3
+"""
+查詢 TWSE 個股本益比／股價淨值比／殖利率
+
+用法：
+  python3 skills/stocks-query/scripts/twse-pe-pbr.py 2330
+  python3 skills/stocks-query/scripts/twse-pe-pbr.py 3481
+
+資料來源：證交所 TWSE 公開 API（個股日本益比、殖利率及股價淨值比）
+"""
+
+from __future__ import annotations
+
+import json
+import sys
+import urllib.request
+from datetime import datetime, timedelta
+
+
+def fetch_pe_pbr(stock_no: str, date_str: str | None = None) -> dict:
+    """從 TWSE 抓本益比/股價淨值比，自動往前回溯最多 3 個月找到有資料的月份。"""
+    if date_str:
+        dates_to_try = [date_str]
+    else:
+        today = datetime.now()
+        dates_to_try = []
+        for i in range(4):
+            dt = today - timedelta(days=30 * i)
+            dates_to_try.append(dt.replace(day=1).strftime("%Y%m%d"))
+
+    for d in dates_to_try:
+        url = (
+            f"https://www.twse.com.tw/rwd/zh/afterTrading/BWIBBU"
+            f"?date={d}&stockNo={stock_no}&response=json"
+        )
+        req = urllib.request.Request(url, headers={"User-Agent": "Mozilla/5.0"})
+        try:
+            with urllib.request.urlopen(req, timeout=30) as resp:
+                data = json.loads(resp.read().decode("utf-8", errors="replace"))
+        except Exception:
+            continue
+
+        if data.get("stat") != "OK":
+            continue
+
+        rows = data.get("data", [])
+        fields = data.get("fields", [])
+        if not rows or not fields:
+            continue
+
+        # 取最新一筆
+        latest = rows[-1]
+        result = {}
+        for i, field in enumerate(fields):
+            val = str(latest[i]).strip() if i < len(latest) else "-"
+            result[field.strip()] = val
+
+        # 附上近期歷史
+        result["_history"] = []
+        for row in rows:
+            entry = {}
+            for i, field in enumerate(fields):
+                val = str(row[i]).strip() if i < len(row) else "-"
+                entry[field.strip()] = val
+            result["_history"].append(entry)
+
+        return result
+
+    raise RuntimeError(f"找不到 {stock_no} 的本益比/淨值比資料（已回溯 3 個月）")
+
+
+def print_summary(stock_no: str, d: dict) -> None:
+    print(f"{stock_no}｜本益比／股價淨值比摘要")
+
+    date_val = d.get("日期", "-")
+    pe = d.get("本益比", "-")
+    pbr = d.get("股價淨值比", "-")
+    dividend_yield = d.get("殖利率(%)", "-")
+    fiscal_year = d.get("股利年度", "-")
+    fiscal_quarter = d.get("財報年/季", "-")
+
+    print(f"• 最新日期：{date_val}")
+    print(f"• 本益比：{pe}")
+    print(f"• 股價淨值比：{pbr}")
+    if dividend_yield != "-" and "%" not in str(dividend_yield):
+        print(f"• 殖利率：{dividend_yield}%")
+    else:
+        print(f"• 殖利率：{dividend_yield}")
+    print(f"• 股利年度：{fiscal_year}")
+    print(f"• 財報年/季：{fiscal_quarter}")
+
+    # 近期趨勢
+    history = d.get("_history", [])
+    if len(history) > 1:
+        recent = history[-5:]
+        print(f"\n近期趨勢（最近 {len(recent)} 筆）：")
+        for entry in recent:
+            h_date = entry.get("日期", "-")
+            h_pe = entry.get("本益比", "-")
+            h_pbr = entry.get("股價淨值比", "-")
+            h_dy = entry.get("殖利率(%)", "-")
+            print(f"  {h_date}｜PE {h_pe}｜PBR {h_pbr}｜殖利率 {h_dy}%")
+
+
+if __name__ == "__main__":
+    stock_no = sys.argv[1] if len(sys.argv) > 1 else "2330"
+    try:
+        data = fetch_pe_pbr(stock_no)
+        print_summary(stock_no, data)
+    except Exception as e:
+        print(f"取得失敗：{e}", file=sys.stderr)
+        sys.exit(1)