huskies: merge 637_story_peer_mesh_discovery_via_crdt_node_presence_list

server/src/config.rs

@@ -70,6 +70,12 @@ pub struct ProjectConfig {
     /// server starts.  Only meaningful when `crdt_require_token` is `true`.
     #[serde(default)]
     pub crdt_tokens: Vec<String>,
+    /// Maximum number of supplementary mesh peer connections an agent opens.
+    /// The mesh discovery loop reads the CRDT `nodes` list and connects to up
+    /// to this many alive peers in addition to the primary rendezvous connection.
+    /// Default: 3. Set to 0 to disable mesh discovery entirely.
+    #[serde(default = "default_max_mesh_peers")]
+    pub max_mesh_peers: usize,
 }
 
 /// Configuration for the filesystem watcher's sweep behaviour.
@@ -117,6 +123,10 @@ fn default_rate_limit_notifications() -> bool {
     true
 }
 
+fn default_max_mesh_peers() -> usize {
+    3
+}
+
 #[derive(Debug, Clone, Deserialize)]
 #[allow(dead_code)]
 pub struct ComponentConfig {
@@ -247,6 +257,7 @@ impl Default for ProjectConfig {
             trusted_keys: Vec::new(),
             crdt_require_token: false,
             crdt_tokens: Vec::new(),
+            max_mesh_peers: default_max_mesh_peers(),
         }
     }
 }
@@ -327,6 +338,7 @@ impl ProjectConfig {
                         trusted_keys: Vec::new(),
                         crdt_require_token: false,
                         crdt_tokens: Vec::new(),
+                        max_mesh_peers: default_max_mesh_peers(),
                     };
                     validate_agents(&config.agent)?;
                     return Ok(config);
@@ -358,6 +370,7 @@ impl ProjectConfig {
                         trusted_keys: Vec::new(),
                         crdt_require_token: false,
                         crdt_tokens: Vec::new(),
+                        max_mesh_peers: default_max_mesh_peers(),
                     };
                     validate_agents(&config.agent)?;
                     Ok(config)
@@ -377,6 +390,7 @@ impl ProjectConfig {
                         trusted_keys: Vec::new(),
                         crdt_require_token: false,
                         crdt_tokens: Vec::new(),
+                        max_mesh_peers: default_max_mesh_peers(),
                     })
                 }
             }