refactor: adapters configured from config crate

crates/adapters/event-publisher/Cargo.toml

@@ -4,6 +4,7 @@ version = "0.1.0"
 edition.workspace = true
 
 [dependencies]
+config = { workspace = true }
 domain      = { workspace = true }
 async-trait = { workspace = true }
 tokio       = { workspace = true }

crates/adapters/event-publisher/src/lib.rs

@@ -16,12 +16,10 @@ pub struct EventPublisherConfig {
 }
 
 impl EventPublisherConfig {
-    pub fn from_env() -> Self {
-        let channel_buffer = std::env::var("EVENT_CHANNEL_BUFFER")
-            .ok()
-            .and_then(|v| v.parse().ok())
-            .unwrap_or(128);
-        Self { channel_buffer }
+    pub fn from_config(config: &config::EventsConfig) -> Self {
+        Self {
+            channel_buffer: config.channel_buffer,
+        }
     }
 }