Scaffold dd0c/route core proxy engine (handler, router, auth, config)

products/01-llm-cost-router/src/data/mod.rs

@@ -0,0 +1,32 @@
+use serde::{Deserialize, Serialize};
+
+/// Telemetry event emitted by the proxy on every request.
+/// Sent via mpsc channel to the worker for async persistence.
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TelemetryEvent {
+    pub org_id: String,
+    pub original_model: String,
+    pub routed_model: String,
+    pub provider: String,
+    pub strategy: String,
+    pub latency_ms: u32,
+    pub status_code: u16,
+    pub is_streaming: bool,
+    pub prompt_tokens: u32,
+    pub completion_tokens: u32,
+    pub timestamp: chrono::DateTime<chrono::Utc>,
+}
+
+/// Abstraction over event queues (SQS for cloud, pgmq for self-hosted)
+#[async_trait::async_trait]
+pub trait EventQueue: Send + Sync {
+    async fn publish(&self, event: TelemetryEvent) -> anyhow::Result<()>;
+    async fn consume(&self, batch_size: usize) -> anyhow::Result<Vec<TelemetryEvent>>;
+}
+
+/// Abstraction over object storage (S3 for cloud, local FS for self-hosted)
+#[async_trait::async_trait]
+pub trait ObjectStore: Send + Sync {
+    async fn put(&self, key: &str, data: &[u8]) -> anyhow::Result<()>;
+    async fn get(&self, key: &str) -> anyhow::Result<Vec<u8>>;
+}