feat: 接入广东公需课平台（jsglpt 登录 + jsxx 进度心跳）

- 新增 platforms/gdgxk.py：base64 登录 → ssoItlmsGxkTicket 换票进 jsxx →
  /uc/store/courseRegister 取课程 → updateViewTime1 心跳上报进度（无需真播）
- platforms/__init__.py 注册；配套抓包脚本与自测脚本
- CHANGELOG / OPTIMIZATION / todo 同步，版本升到 0.0.2

script/capture-jsglpt.py

@@ -0,0 +1,127 @@
+"""广东省教师继续教育平台抓包工具（一次性取证用，不参与运行）。
+
+用法：
+    python script/capture-jsglpt.py [分钟数]
+
+行为：开一个有头 Chromium（持久 profile，登录态会保留），打开 jsglpt 登录页，
+把你在窗口里操作期间产生的 XHR/fetch 全量落到 data/capture-jsglpt-<时间>.jsonl，
+同时每 3 秒把 cookie 快照写到 data/capture-jsglpt-cookies.json。
+"""
+import json
+import os
+import sys
+import time
+
+from playwright.sync_api import sync_playwright
+
+ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+DATA = os.path.join(ROOT, "data")
+LOGIN = "https://jsglpt.gds.edu.cn/login.jsp"
+MINUTES = float(sys.argv[1]) if len(sys.argv) > 1 else 40
+
+os.makedirs(DATA, exist_ok=True)
+STAMP = time.strftime("%Y%m%d-%H%M%S")
+JSONL = os.path.join(DATA, "capture-jsglpt-%s.jsonl" % STAMP)
+COOKIES = os.path.join(DATA, "capture-jsglpt-cookies.json")
+PROFILE = os.path.join(DATA, ".gd-profile")
+
+out = open(JSONL, "a", encoding="utf-8")
+seen = 0
+
+
+def emit(rec):
+    global seen
+    seen += 1
+    rec["n"] = seen
+    out.write(json.dumps(rec, ensure_ascii=False) + "\n")
+    out.flush()
+    print("  %-4s %s %s -> %s" % (rec.get("rt", "doc"), rec.get("method", ""),
+                                  rec.get("url", "")[:150], rec.get("status", "")), flush=True)
+
+
+def on_response(r):
+    try:
+        req = r.request
+        rt = req.resource_type
+        if rt not in ("xhr", "fetch", "document"):
+            return
+        h = {}
+        try:
+            h = dict(r.headers or {})
+        except Exception:
+            pass
+        body = ""
+        # 只留文本类响应，视频/图片跳过
+        if not (r.url or "").lower().split("?")[0].endswith((".mp4", ".m3u8", ".ts", ".png", ".jpg", ".gif", ".woff", ".woff2", ".css", ".js")):
+            try:
+                body = r.text()[:8000]
+            except Exception:
+                body = "<binary>"
+        emit({
+            "t": time.strftime("%H:%M:%S"),
+            "rt": rt,
+            "method": req.method,
+            "url": r.url,
+            "req_headers": dict(req.headers or {}),
+            "req": (req.post_data or "")[:4000],
+            "status": r.status,
+            "resp_headers": h,
+            "resp": body,
+        })
+    except Exception:
+        pass
+
+
+def main():
+    print("抓包输出：%s" % JSONL, flush=True)
+    with sync_playwright() as p:
+        ctx = p.chromium.launch_persistent_context(
+            PROFILE, headless=False,
+            args=["--disable-blink-features=AutomationControlled"],
+            viewport={"width": 1440, "height": 900},
+        )
+        hooked = set()
+
+        def hook(page):
+            if id(page) in hooked:
+                return
+            hooked.add(id(page))
+            page.on("response", on_response)
+            print("[页面] %s" % (page.url or "about:blank"), flush=True)
+
+        ctx.on("page", hook)
+        pg = ctx.pages[0] if ctx.pages else ctx.new_page()
+        hook(pg)
+        try:
+            pg.goto(LOGIN, wait_until="domcontentloaded", timeout=60000)
+        except Exception as e:
+            print("打开登录页失败：%s" % e, flush=True)
+
+        last = 0.0
+        t0 = time.time()
+        while time.time() - t0 < MINUTES * 60:
+            try:
+                now = time.time()
+                if now - last > 3:
+                    last = now
+                    with open(COOKIES, "w", encoding="utf-8") as f:
+                        json.dump(ctx.cookies(), f, ensure_ascii=False, indent=1)
+                ctx.pages[0].wait_for_timeout(1000)
+            except Exception:
+                # 用户把所有页面关掉了，收工
+                break
+        try:
+            with open(COOKIES, "w", encoding="utf-8") as f:
+                json.dump(ctx.cookies(), f, ensure_ascii=False, indent=1)
+        except Exception:
+            pass
+        try:
+            ctx.close()
+        except Exception:
+            pass
+    out.close()
+    print("抓包结束：%d 条 → %s" % (seen, JSONL), flush=True)
+
+
+if __name__ == "__main__":
+    main()