refactor: replace Box<dyn Error> with anyhow::Result

- ingestion_pipeline::run_worker_loop returns anyhow::Result<()>
- api_router::ApiState::new returns anyhow::Result<Self>
- html_router::HtmlState::new_with_resources is infallible, returns Self
- main/server/worker binary entry points return anyhow::Result<()>

api-router/src/api_state.rs

@@ -16,7 +16,7 @@ impl ApiState {
     pub async fn new(
         config: &AppConfig,
         storage: StorageManager,
-    ) -> Result<Self, Box<dyn std::error::Error>> {
+    ) -> anyhow::Result<Self> {
         let surreal_db_client = Arc::new(
             SurrealDbClient::new(
                 &config.surrealdb_address,

html-router/src/html_state.rs

@@ -49,12 +49,12 @@ impl HtmlState {
         reranker_pool: Option<Arc<RerankerPool>>,
         embedding_provider: Arc<EmbeddingProvider>,
         template_engine: Option<Arc<TemplateEngine>>,
-    ) -> Result<Self, Box<dyn std::error::Error>> {
+    ) -> Self {
         let templates =
             template_engine.unwrap_or_else(|| Arc::new(create_template_engine!("templates")));
         debug!("Template engine configured for html_router.");
 
-        Ok(Self {
+        Self {
             db,
             openai_client,
             session_store,
@@ -65,7 +65,7 @@ impl HtmlState {
             embedding_provider,
             conversation_archive_cache: Arc::new(RwLock::new(HashMap::new())),
             conversation_archive_cache_writes: Arc::new(AtomicUsize::new(0)),
-        })
+        }
     }
 
     pub fn retrieval_strategy(&self) -> RetrievalStrategy {

ingestion-pipeline/src/lib.rs

@@ -17,7 +17,7 @@ use uuid::Uuid;
 pub async fn run_worker_loop(
     db: Arc<SurrealDbClient>,
     ingestion_pipeline: Arc<IngestionPipeline>,
-) -> Result<(), Box<dyn std::error::Error>> {
+) -> anyhow::Result<()> {
     let worker_id = format!("ingestion-worker-{}", Uuid::new_v4());
     let lease_duration = Duration::from_secs(DEFAULT_LEASE_SECS as u64);
     let idle_backoff = Duration::from_millis(500);

main/src/main.rs

@@ -22,7 +22,7 @@ use tracing_subscriber::{fmt, prelude::*, EnvFilter};
 use tokio::task::LocalSet;
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> anyhow::Result<()> {
     // Set up tracing
     tracing_subscriber::registry()
         .with(fmt::layer().with_writer(std::io::stderr))
@@ -118,7 +118,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         embedding_provider.clone(),
         None,
     )
-    .await?;
+    .await;
 
     let api_state = ApiState::new(&config, storage.clone()).await?;
 
@@ -295,8 +295,7 @@ mod tests {
             embedding_provider,
             None,
         )
-        .await
-        .expect("failed to build html state");
+        .await;
 
         let api_state = ApiState {
             db: db.clone(),

main/src/server.rs

@@ -12,7 +12,7 @@ use tracing::info;
 use tracing_subscriber::{fmt, prelude::*, EnvFilter};
 
 #[tokio::main(flavor = "multi_thread", worker_threads = 2)]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> anyhow::Result<()> {
     // Set up tracing
     tracing_subscriber::registry()
         .with(fmt::layer().with_writer(std::io::stderr))
@@ -73,7 +73,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
         embedding_provider,
         None,
     )
-    .await?;
+    .await;
 
     let api_state = ApiState::new(&config, storage).await?;
 

main/src/worker.rs

@@ -11,7 +11,7 @@ use tracing::info;
 use tracing_subscriber::{fmt, prelude::*, EnvFilter};
 
 #[tokio::main]
-async fn main() -> Result<(), Box<dyn std::error::Error>> {
+async fn main() -> anyhow::Result<()> {
     // Set up tracing
     tracing_subscriber::registry()
         .with(fmt::layer())