feat(openflare): migrate of_node_access_logs to ClickHouse

Move node access log storage from PostgreSQL/SQLite to ClickHouse
(database: openflare). System startup now requires a healthy ClickHouse
connection and auto-initializes the schema. Agent heartbeat writes access
logs via batch insert; goose migration drops the legacy relational table.

openflare-server/internal/apps/openflare/node/logics_test.go

@@ -35,8 +35,10 @@ func setupNodeTestDB(t *testing.T) func() {
 
 	db.SetDB(sqliteDB)
 	option.ResetInitializationForTest()
+	resetAccessLogStore := model.SetAccessLogStoreForTest(model.NewMemoryAccessLogStore())
 
 	return func() {
+		resetAccessLogStore()
 		db.SetDB(nil)
 		option.ResetInitializationForTest()
 	}