feat(gdgxk): 课程卡片显示培训年度 / 学时 / 完成状态

- list_courses 解析 showCourse 卡片里的「培训年度」「课程学时」「未完成/已完成」，
  返回 section / info / status_label，前端拼成「2026年公需课 · 未完成 · 30 学时」
- 修正完成判定：以平台状态为准（需所有教学活动 100% + 试卷考核 ≥60），
  不再用视频秒数够不够来推断，避免把未完成的课当已学完跳过

src/study_tool/platforms/gdgxk.py

@@ -142,17 +142,32 @@ def profile(s):
     return m.group(1) if m else ""
 
 
+def _parse_courses(html):
+    """课程列表页：每个 `showCourse('id','名称')` 前面就是这张卡片的信息。"""
+    out = []
+    for m in re.finditer(r"showCourse\('([^']+)','([^']*)'\)", html):
+        block = html[max(0, m.start() - 2500):m.start()]
+        year = re.search(r"培训年度：\s*<[^>]*>(\d{4})<", block)
+        hours = re.search(r"课程学时：\s*<[^>]*>(\d+)<", block)
+        st = re.search(r">\s*(未完成|已完成)\s*<", block)
+        out.append({
+            "plan_id": m.group(1),
+            "project_id": "",
+            "name": m.group(2).strip(),
+            "section": ("%s年公需课" % year.group(1)) if year else "",
+            "status_label": st.group(1) if st else "",
+            "info": ("%s 学时" % hours.group(1)) if hours else "",
+            "in_study": True,
+            "platform": PLATFORM_ID,
+        })
+    return out
+
+
 def list_courses(s):
     html = s.get(X + "/uc/store/courseRegister", timeout=30).text
-    out, seen = [], set()
-    for cid, name in re.findall(r"showCourse\('([^']+)','([^']*)'\)", html):
-        if cid in seen:
-            continue
-        seen.add(cid)
-        out.append({"plan_id": cid, "project_id": "", "name": name.strip(),
-                    "in_study": True, "platform": PLATFORM_ID})
+    out = _parse_courses(html)
     if not out:
-        if "loginBtn" in html or "showLogin" in html:
+        if "logout" not in html:
             raise _expired("学习平台会话已失效，请重新登录")
         return []
     return out
@@ -217,14 +232,21 @@ def discover(s, plan_id, project_id, name=""):
     cw["sid"] = sid
     sign = _sign(s, {"aid": cw["aid"], "id": cw["id"], "sid": sid}, cw["uid"])
     cur = _view_time(s, cw, cw["uid"], sign)
-    done = cw["total"] > 0 and cur >= cw["total"]
+    # 完成与否以平台状态为准：要「所有教学活动 100% + 试卷考核 ≥60」，视频秒数够不代表完成
+    status = ""
+    for c in _parse_courses(s.get(X + "/uc/store/courseRegister", timeout=30).text):
+        if c["plan_id"] == cid:
+            status = c["status_label"]
+            break
+    done = status == "已完成"
     return {
         "user": profile(s),
         "course": name or cw["title"],
-        "progress": "%d/%d 秒" % (cur, cw["total"]),
+        "progress": "%d/%d 秒%s" % (cur, cw["total"], "（课程已完成）" if done else ""),
         "info": cw["video"],
         "courseware": [{"id": cw["id"], "title": cw["title"], "href": page,
                         "total": cw["total"], "viewTime": cur, "done": done,
+                        "status": status,
                         "aid": cw["aid"], "uid": cw["uid"]}],
         "feedback": [], "test": [],
         "platform": PLATFORM_ID, "generation": "gxk",
@@ -253,6 +275,11 @@ def study(key, s, d, **opts):
             continue
         runtime.log(key, "开始学习：%s（总长 %d 秒，已看 %d 秒）"
                     % (cw["title"], cw["total"], cw["viewTime"]))
+        if cw["total"] and cw["viewTime"] >= cw["total"]:
+            runtime.log(key, "视频已播完，但课程仍显示「%s」：还差试卷考核或其他教学活动"
+                        % (cw.get("status") or "未完成"), level="warn")
+            runtime.set_state(key, done=i)
+            continue
         _learn(key, s, cw, speed, beat)
         runtime.set_state(key, done=i)
     runtime.set_state(key, status="done", done=total)