refactor: remove Gorse integration and implement HotRank feature

- Removed Gorse-related configurations, handlers, and dependencies from the codebase.
- Introduced HotRank feature with configuration options for ranking posts based on recent activity.
- Updated application structure to support HotRank processing, including new caching mechanisms and database interactions.
- Cleaned up related DTOs and repository methods to reflect the removal of Gorse and the addition of HotRank functionality.

start-docker.sh

@@ -20,10 +20,12 @@ docker run -d \
   -e APP_S3_SECRET_KEY=4R9yjmwKNoHphiBkv05Oa8WGEIFbnlZeTLXfSgx3 \
   -e APP_S3_BUCKET=test \
   -e APP_S3_DOMAIN=files.littlelan.cn \
-  -e APP_GORSE_ENABLED=true \
-  -e APP_GORSE_ADDRESS=http://111.170.19.33:8088 \
-  -e APP_GORSE_IMPORT_PASSWORD=lanyimin123 \
-  -e APP_GORSE_EMBEDDING_API_KEY=sk-ZPN5NMPSqEaOGCPfD2LqndZ5Wwmw3DC4CQgzgKhM35fI3RpD \
+  -e APP_HOT_RANK_ENABLED=true \
+  -e APP_HOT_RANK_REFRESH_INTERVAL_SECONDS=300 \
+  -e APP_HOT_RANK_TOP_N=100 \
+  -e APP_HOT_RANK_RECENT_WINDOW_HOURS=168 \
+  -e APP_HOT_RANK_RECENT_FETCH_LIMIT=500 \
+  -e APP_HOT_RANK_CANDIDATE_CAP=800 \
   -e APP_OPENAI_ENABLED=true \
   -e APP_OPENAI_BASE_URL=https://api.littlelan.cn/ \
   -e APP_OPENAI_API_KEY=sk-y7LOeKsNfzbZWTRSFsTs79jd8WYlezbIVgdVPgMvG4Xz2AlV \