feat(events): add message update, role, and voice state update handlers

- Implemented `handle_message_update` to log message edits.
- Created role event handlers for role creation, update, and deletion.
- Added voice state update handling to log channel changes.
- Introduced a new `ready_event` handler to restore bot presence and enforce blacklist.
- Updated `mod.rs` to include new event modules.
- Enhanced `main.rs` for database connection and initialization.
- Added comprehensive permission management in `permissions.rs`.

src/commands/playto.rs

@@ -0,0 +1,27 @@
+use serenity::model::prelude::*;
+use serenity::prelude::*;
+
+use crate::commands::botconfig_common;
+
+pub async fn handle_playto(ctx: &Context, msg: &Message, args: &[&str]) {
+    botconfig_common::handle_activity(ctx, msg, "+playto", args).await;
+}
+
+pub struct PlaytoCommand;
+pub static COMMAND_DESCRIPTOR: PlaytoCommand = PlaytoCommand;
+
+impl crate::commands::command_contract::CommandSpec for PlaytoCommand {
+    fn metadata(&self) -> crate::commands::command_contract::CommandMetadata {
+        crate::commands::command_contract::CommandMetadata {
+            key: "playto",
+            command: "playto",
+            category: "profile",
+            params: "<texte[, ,texte2,...]>",
+            summary: "Definit une activite playing",
+            description: "Configure la rotation des messages d activite en mode playing.",
+            examples: &["+playto", "+po", "+help playto"],
+            alias_source_key: "playto",
+            default_aliases: &["ply"],
+        }
+    }
+}