feat: add knowledge management functionality with CRUD operations and database schema

- Implemented KnowledgeHandler for managing knowledge groups and items, including listing, creating, updating, and deleting operations.
- Added database migration scripts to create necessary tables for knowledge management, including knowledge_groups, knowledge_items, knowledge_parse_tasks, and knowledge_chunks_meta.
- Introduced prompt_rule_knowledge_groups table to associate prompt rules with knowledge groups.

server/configs/config.yaml

@@ -16,6 +16,22 @@ redis:
   addr: localhost:6379
   db: 0
 
+qdrant:
+  url: localhost:6334
+  api_key: ""
+  collection: geo_knowledge_chunks
+  timeout: 15s
+
+object_storage:
+  provider: minio
+  endpoint: localhost:9000
+  access_key: minioadmin
+  secret_key: minioadmin
+  bucket: geo-private
+  use_ssl: false
+  public_base_url: ""
+  region: ""
+
 cache:
   driver: redis
 
@@ -39,6 +55,21 @@ llm:
   reasoning_effort: minimal
   web_search_limit: 3
 
+retrieval:
+  provider: siliconflow
+  base_url: https://api.siliconflow.cn/v1
+  api_key: "sk-dikvcafrdcbajjpfgjjephqcggpdxwxdkighllieijlehwsf"
+  embedding_model: BAAI/bge-m3
+  reranker_model: BAAI/bge-reranker-v2-m3
+  timeout: 30s
+  chunk_size: 900
+  chunk_overlap: 120
+  embedding_batch_size: 16
+  recall_limit: 12
+  rerank_top_n: 6
+  max_chunks_per_doc: 6
+  overlap_tokens: 60
+
 generation:
   queue_size: 128
   worker_concurrency: 1