feat: 早报系统重构与功能增强

- 新增常驻调度器 daily/scheduler.py + run-scheduler.ps1（定时生成/推送）
- 新增 daily/bridge_manager.py：Windows 兼容的 Cursor SDK 桥接
- 新增 skills/daily-featured-pick 首推 Skill 与叙事轴/去重逻辑
- 新闻抓取窗口、GitHub 搜索、企微 delta 模式等多项改进
- 补充设计文档与 superpowers 计划/规范
- 新增对应测试（scheduler、featured_pick、github_search、news_fetch_window 等）

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_github_search.py

@@ -0,0 +1,71 @@
+"""Tests for GitHub Search pagination / deep pool."""
+
+from __future__ import annotations
+
+import os
+import unittest
+from unittest.mock import MagicMock, patch
+
+
+class SearchGithubReposPaginationTests(unittest.TestCase):
+    def test_search_paginates_beyond_first_page_of_30(self):
+        from daily.github.search import search_github_repos
+
+        def make_items(start: int, n: int) -> list[dict]:
+            return [
+                {
+                    "full_name": f"org/repo{i}",
+                    "html_url": f"https://github.com/org/repo{i}",
+                    "description": f"desc {i}",
+                    "language": "Python",
+                    "stargazers_count": 1000 - i,
+                    "created_at": "2026-01-01T00:00:00Z",
+                }
+                for i in range(start, start + n)
+            ]
+
+        responses = [
+            MagicMock(status_code=200, json=lambda: {"items": make_items(1, 100)}),
+            MagicMock(status_code=200, json=lambda: {"items": make_items(101, 50)}),
+        ]
+        client = MagicMock()
+        client.__enter__.return_value = client
+        client.__exit__.return_value = False
+        client.get.side_effect = responses
+
+        with patch.dict(os.environ, {"GITHUB_TOKEN": "test-token"}, clear=False):
+            with patch("daily.github.search.httpx.Client", return_value=client):
+                with patch("daily.github.search.github_token", return_value="test-token"):
+                    repos = search_github_repos("stars:>50", 120, require_token=True)
+
+        self.assertEqual(len(repos), 120)
+        self.assertEqual(repos[0]["repo"], "org/repo1")
+        self.assertEqual(repos[119]["repo"], "org/repo120")
+        self.assertEqual(client.get.call_count, 2)
+        first_params = client.get.call_args_list[0].kwargs["params"]
+        self.assertEqual(first_params["per_page"], 100)
+        self.assertEqual(first_params["page"], 1)
+
+
+class GithubBoardDeepPoolTests(unittest.TestCase):
+    def test_board_select_fills_ten_when_deep_pool_has_fresh_repos(self):
+        from daily.board_select import board_select
+
+        recent = {f"old/r{i}" for i in range(1, 33)}
+        items = [{"repo": f"old/r{i}"} for i in range(1, 31)] + [
+            {"repo": f"fresh/r{i}"} for i in range(1, 20)
+        ]
+        selected = board_select(
+            board="github_trending",
+            items=items,
+            recent_keys=recent,
+            limit=10,
+            pool_size=100,
+            kind="github",
+        )
+        self.assertEqual(len(selected), 10)
+        self.assertTrue(all(r["repo"].startswith("fresh/") for r in selected))
+
+
+if __name__ == "__main__":
+    unittest.main()