feat: add reactions, bookmarks, polls modules with session remember config

Add three new feature modules (reactions, bookmarks, polls) with corresponding database tables, indexes, and router registrations. Introduce `SESSION_MAX_AGE_REMEMBER` config for extended session duration, add `get_unread_messages` template global, and include operational defaults for rate limiting and session settings in `site_settings`.

devplacepy/services/news.py

@@ -5,7 +5,7 @@ from datetime import datetime, timezone
 
 import httpx
 
-from devplacepy.database import get_table, get_setting
+from devplacepy.database import get_table, get_setting, get_int_setting
 from devplacepy.services.base import BaseService
 from devplacepy.utils import generate_uid, make_combined_slug, strip_html
 
@@ -68,6 +68,7 @@ class NewsService(BaseService):
         super().__init__(name="news", interval_seconds=3600)
 
     async def run_once(self) -> None:
+        self.interval_seconds = max(60, get_int_setting("news_service_interval", 3600))
         api_url = get_setting("news_api_url", NEWS_API_URL_DEFAULT)
         ai_url = get_setting("news_ai_url", AI_URL_DEFAULT)
         ai_model = get_setting("news_ai_model", AI_MODEL_DEFAULT)