Add a libraries command and scan subcommand

src/args.rs

@@ -44,6 +44,14 @@ pub(crate) enum Commands {
         assets_command: AssetsCommands,
     },
 
+    /// Libraries related commands
+    #[serde(rename = "libaries")]
+    Libraries {
+        #[command(subcommand)]
+        #[serde(flatten)]
+        libraries_command: LibrariesCommands,
+    },
+
     /// People related commands
     #[serde(rename = "people")]
     People {
@@ -78,6 +86,13 @@ pub(crate) enum AssetsCommands {
     },
 }
 
+#[derive(Serialize, Subcommand)]
+pub(crate) enum LibrariesCommands {
+    /// Scan all libraries
+    #[serde(rename = "scan")]
+    Scan {},
+}
+
 #[derive(Serialize, Subcommand)]
 pub(crate) enum PeopleCommands {
     /// Synchronises date of births from a vcard file