feat!: begin rust rewrite

service scheduling, configs, all dependencies, tracing, graceful
shutdown, concurrency

src/bot/mod.rs

@@ -0,0 +1,16 @@
+use poise::serenity_prelude as serenity;
+pub struct Data {} // User data, which is stored and accessible in all command invocations
+pub type Error = Box<dyn std::error::Error + Send + Sync>;
+pub type Context<'a> = poise::Context<'a, Data, Error>;
+
+/// Displays your or another user's account creation date
+#[poise::command(slash_command, prefix_command)]
+pub async fn age(
+    ctx: Context<'_>,
+    #[description = "Selected user"] user: Option<serenity::User>,
+) -> Result<(), Error> {
+    let u = user.as_ref().unwrap_or_else(|| ctx.author());
+    let response = format!("{}'s account was created at {}", u.name, u.created_at());
+    ctx.say(response).await?;
+    Ok(())
+}