Fix axum route params: use :param syntax (not {param}) for axum 0.7

Axum 0.7 uses :param for path parameters. {param} is axum 0.8+ syntax.
Routes were silently not matching, causing 404 on all key lookups.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

warzone/crates/warzone-server/src/routes/keys.rs

@@ -11,7 +11,7 @@ pub fn routes() -> Router<AppState> {
     Router::new()
         .route("/keys/register", post(register_keys))
         .route("/keys/list", get(list_keys))
-        .route("/keys/{fingerprint}", get(get_bundle))
+        .route("/keys/:fingerprint", get(get_bundle))
 }
 
 /// Debug endpoint: list all registered fingerprints.
@@ -63,15 +63,29 @@ async fn get_bundle(
     Path(fingerprint): Path<String>,
 ) -> Result<Json<serde_json::Value>, axum::http::StatusCode> {
     let key = normalize_fp(&fingerprint);
-    tracing::info!("Looking up bundle for {}", key);
+    tracing::info!("get_bundle: raw path='{}', normalized='{}'", fingerprint, key);
+
+    // Debug: list what's in the DB
+    let all_keys: Vec<String> = state.db.keys.iter()
+        .filter_map(|r| r.ok().and_then(|(k, _)| String::from_utf8(k.to_vec()).ok()))
+        .collect();
+    tracing::info!("get_bundle: DB contains {} keys: {:?}", all_keys.len(), all_keys);
+
     match state.db.keys.get(key.as_bytes()) {
-        Ok(Some(data)) => Ok(Json(serde_json::json!({
+        Ok(Some(data)) => {
-            "fingerprint": fingerprint,
+            tracing::info!("get_bundle: FOUND {} bytes for {}", data.len(), key);
-            "bundle": base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &data),
+            Ok(Json(serde_json::json!({
-        }))),
+                "fingerprint": fingerprint,
-        _ => {
+                "bundle": base64::Engine::encode(&base64::engine::general_purpose::STANDARD, &data),
-            tracing::warn!("Bundle not found for {}", key);
+            })))
+        }
+        Ok(None) => {
+            tracing::warn!("get_bundle: NOT FOUND for key '{}'", key);
             Err(axum::http::StatusCode::NOT_FOUND)
         }
+        Err(e) => {
+            tracing::error!("get_bundle: DB error: {}", e);
+            Err(axum::http::StatusCode::INTERNAL_SERVER_ERROR)
+        }
     }
 }

warzone/crates/warzone-server/src/routes/messages.rs

@@ -11,8 +11,8 @@ use crate::state::AppState;
 pub fn routes() -> Router<AppState> {
     Router::new()
         .route("/messages/send", post(send_message))
-        .route("/messages/poll/{fingerprint}", get(poll_messages))
+        .route("/messages/poll/:fingerprint", get(poll_messages))
-        .route("/messages/{id}/ack", delete(ack_message))
+        .route("/messages/:id/ack", delete(ack_message))
 }
 
 #[derive(Deserialize)]