fix: don't use in memory datastores for chat client dht in integratio…

…n tests (#5399)

Description
---
Use filestore instead of in memory store for DHT tables.

Motivation and Context
---
I think at some point the reference to the store is being dropped
causing the tables to no longer exist.

How Has This Been Tested?
---
Locally

What process can a PR reviewer use to test or verify this change?
---
Run the tests, watch CI.

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Breaking Changes
---

- [x] None
- [ ] Requires data directory on base node to be deleted
- [ ] Requires hard fork
- [ ] Other - Please specify

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Co-authored-by: SW van Heerden <swvheerden@gmail.com>

integration_tests/src/chat_client.rs

@@ -30,7 +30,7 @@ use tari_comms::{
     peer_manager::{Peer, PeerFeatures},
     NodeIdentity,
 };
-use tari_comms_dht::{store_forward::SafConfig, DhtConfig, NetworkDiscoveryConfig};
+use tari_comms_dht::{store_forward::SafConfig, DbConnectionUrl, DhtConfig, NetworkDiscoveryConfig};
 use tari_p2p::{P2pConfig, TcpTransportConfig, TransportConfig};
 
 use crate::{base_node_process::get_base_dir, get_port};
@@ -58,6 +58,7 @@ fn test_config(name: &str, port: u64, identity: &NodeIdentity) -> P2pConfig {
     let mut config = P2pConfig {
         datastore_path: temp_dir_path.clone(),
         dht: DhtConfig {
+            database_url: DbConnectionUrl::file("dht.sqlite"),
             network_discovery: NetworkDiscoveryConfig {
                 enabled: true,
                 ..NetworkDiscoveryConfig::default()

integration_tests/src/chat_ffi.rs

@@ -42,7 +42,7 @@ use tari_comms::{
     peer_manager::{Peer, PeerFeatures},
     NodeIdentity,
 };
-use tari_comms_dht::{store_forward::SafConfig, DhtConfig, NetworkDiscoveryConfig};
+use tari_comms_dht::{store_forward::SafConfig, DbConnectionUrl, DhtConfig, NetworkDiscoveryConfig};
 use tari_contacts::contacts_service::{service::ContactOnlineStatus, types::Message};
 use tari_p2p::{P2pConfig, TcpTransportConfig, TransportConfig};
 use tari_utilities::message_format::MessageFormat;
@@ -183,6 +183,7 @@ fn test_config(base_dir: &PathBuf, identity: &NodeIdentity) -> P2pConfig {
     let mut config = P2pConfig {
         datastore_path: base_dir.clone(),
         dht: DhtConfig {
+            database_url: DbConnectionUrl::file("dht.sqlite"),
             network_discovery: NetworkDiscoveryConfig {
                 enabled: true,
                 ..NetworkDiscoveryConfig::default()