chore: Phase 0 统一命名与仓库卫生

统一 daily-robots 命名、修正示例路径与 User-Agent，并清理 tmp 与 IDE 追踪文件。

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

daily/news/fetch.py

@@ -22,7 +22,7 @@ from daily.news.feeds_cn import CN_AI_TITLE_KEYWORDS, CN_NEWS_CATEGORIES
 
 logger = logging.getLogger(__name__)
 
-USER_AGENT = "Mozilla/5.0 (compatible; skills-hot-daily/1.0; +https://skills.sh)"
+USER_AGENT = "Mozilla/5.0 (compatible; daily-robots/1.0; +https://skills.sh)"
 BROWSER_USER_AGENT = (
     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) "
     "AppleWebKit/537.36 (KHTML, like Gecko) "

daily/skills_board.py

@@ -15,7 +15,7 @@ logger = logging.getLogger(__name__)
 
 Board = Literal["trending", "hot"]
 SKILLS_SITE = "https://www.skills.sh"
-USER_AGENT = "Mozilla/5.0 (compatible; skills-hot-daily/1.0; +https://skills.sh)"
+USER_AGENT = "Mozilla/5.0 (compatible; daily-robots/1.0; +https://skills.sh)"
 
 _SKILL_RE = re.compile(
     r'\{"source":"(?P<source>[^"]+)","skillId":"(?P<skill_id>[^"]+)",'