Split bin dir into separate daemon and check dirs

This lets us manage their increasingly disparate dependencies separately

daemon/src/error.rs

@@ -0,0 +1,18 @@
+use rayhunter::diag_device::DiagDeviceError;
+use thiserror::Error;
+
+use crate::qmdl_store::RecordingStoreError;
+
+#[derive(Error, Debug)]
+pub enum RayhunterError {
+    #[error("Config file parsing error: {0}")]
+    ConfigFileParsingError(#[from] toml::de::Error),
+    #[error("Diag intialization error: {0}")]
+    DiagInitError(DiagDeviceError),
+    #[error("Tokio error: {0}")]
+    TokioError(#[from] tokio::io::Error),
+    #[error("QmdlStore error: {0}")]
+    QmdlStoreError(#[from] RecordingStoreError),
+    #[error("No QMDL store found at path {0}, but can't create a new one due to debug mode")]
+    NoStoreDebugMode(String),
+}