refactor: adapters configured from config crate

crates/adapters/tmdb-enrichment/Cargo.toml

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

crates/adapters/tmdb-enrichment/src/client.rs

@@ -7,9 +7,11 @@ pub struct TmdbEnrichmentClient {
 }
 
 impl TmdbEnrichmentClient {
-    pub fn from_env() -> Result<Self, DomainError> {
-        let api_key = std::env::var("TMDB_API_KEY")
-            .map_err(|_| DomainError::InfrastructureError("TMDB_API_KEY is not set".into()))?;
+    pub fn from_config(config: &config::MetadataConfig) -> Result<Self, DomainError> {
+        let api_key = config
+            .tmdb_api_key
+            .clone()
+            .ok_or_else(|| DomainError::InfrastructureError("TMDB_API_KEY is not set".into()))?;
         Ok(Self {
             api_key,
             http: reqwest::Client::new(),