feat: reorganize to one flake one rust project

pi/pi-service/src/main.rs

@@ -7,6 +7,7 @@ use axum::extract::State;
 use axum::http::{HeaderMap, StatusCode};
 use axum::routing::get;
 use axum::{Json, Router};
+use noisebell_common::{validate_bearer, WebhookPayload};
 use serde::Serialize;
 use tokio_gpiod::{Bias, Chip, Edge, EdgeDetect, Options};
 use tracing::{error, info, warn};
@@ -21,14 +22,6 @@ struct AppState {
     inbound_api_key: String,
 }
 
-fn validate_bearer(headers: &HeaderMap, expected: &str) -> bool {
-    headers
-        .get("authorization")
-        .and_then(|v| v.to_str().ok())
-        .map(|v| v.strip_prefix("Bearer ").unwrap_or("") == expected)
-        .unwrap_or(false)
-}
-
 #[derive(Serialize)]
 struct StatusResponse {
     status: &'static str,
@@ -324,7 +317,7 @@ async fn main() -> Result<()> {
             let status = status_str(new_open);
             info!(status, timestamp, "state changed");
 
-            let payload = serde_json::json!({ "status": status, "timestamp": timestamp });
+            let payload = WebhookPayload { status: status.to_string(), timestamp };
 
             for attempt in 0..=retry_attempts {
                 let result = client