telegram bot user isolation, config store, user context channels

src/frontend/api/config.rs

@@ -9,7 +9,6 @@ use serde::{Deserialize, Serialize};
 use serde_json::{Value, json};
 
 use core_api::PropertyType;
-use core_api::system_bus::SystemEvent;
 
 use skald_core::skald::Skald;
 use super::ApiError;
@@ -108,20 +107,9 @@ pub async fn set_property(
         return Err(ApiError::not_found("unknown config key"));
     }
 
-    let old_value = skald.config().get(&p.key).await?;
-
-    // No-op if value didn't change.
-    if old_value.as_deref() == Some(body.value.as_str()) {
-        return Ok(StatusCode::OK);
-    }
-
+    // GlobalConfigManager::set handles the no-op check and emits
+    // ConfigKeyUpdated on the system bus when the value actually changes.
     skald.config().set(&p.key, &body.value).await?;
 
-    skald.system_bus().send(SystemEvent::ConfigKeyUpdated {
-        key:       p.key.clone(),
-        old_value,
-        new_value: body.value,
-    });
-
     Ok(StatusCode::OK)
 }

src/main.rs

@@ -164,12 +164,9 @@ pub async fn run_backend() -> Result<Backend> {
 
 /// Build the plugin list. Extracted so both entry points share the same set.
 fn build_plugins() -> Vec<Arc<dyn Plugin>> {
-    // NOTE (multi-user slice): telegram-bot, mobile-connector and honcho are
-    // single-user / global-ChatEventBus-subscriber plugins. They assume one user
-    // and cannot work under per-user isolation yet, so they are dropped from the
-    // build until they become multi-user-aware. See blueprint §17 and the plan.
     let mut plugins: Vec<Arc<dyn Plugin>> = vec![
         Arc::new(plugin_tailscale_remote::RemotePlugin::new()),
+        Arc::new(plugin_telegram_bot::TelegramPlugin::new()),
         Arc::new(plugin_comfyui::ComfyUIPlugin::new()),
         Arc::new(plugin_tts_orpheus_3b::OrpheusTtsPlugin::new()),
         Arc::new(plugin_tts_kokoro::KokoroTtsPlugin::new()),