Added minimum degree filter for graph queries

- Introduced min_degree parameter in graph query
- Updated UI to include minimum degree setting
- Modified API to handle min_degree parameter
- Updated graph query logic in LightRAG

lightrag_webui/src/stores/settings.ts

@@ -22,6 +22,9 @@ interface SettingsState {
   graphQueryMaxDepth: number
   setGraphQueryMaxDepth: (depth: number) => void
 
+  graphMinDegree: number
+  setGraphMinDegree: (degree: number) => void
+
   graphLayoutMaxIterations: number
   setGraphLayoutMaxIterations: (iterations: number) => void
 
@@ -66,6 +69,7 @@ const useSettingsStoreBase = create<SettingsState>()(
       enableEdgeEvents: false,
 
       graphQueryMaxDepth: 3,
+      graphMinDegree: 0,
       graphLayoutMaxIterations: 10,
 
       queryLabel: defaultQueryLabel,
@@ -107,6 +111,8 @@ const useSettingsStoreBase = create<SettingsState>()(
 
       setGraphQueryMaxDepth: (depth: number) => set({ graphQueryMaxDepth: depth }),
 
+      setGraphMinDegree: (degree: number) => set({ graphMinDegree: degree }),
+
       setEnableHealthCheck: (enable: boolean) => set({ enableHealthCheck: enable }),
 
       setApiKey: (apiKey: string | null) => set({ apiKey }),