feat(hub): add a command kind for message-panel actions

DevframeMessageAction gains a second variant, 'command', alongside the
existing 'activate' kind: it invokes a command from the hub's command
registry (the same one backing the command palette) by command.id,
via the hub:commands:execute RPC. Wired the dispatch in the messages
plugin's onActivate handler; MessageDetail.vue already renders any
action kind generically and needed no change.

Additive only — the existing 'activate' kind and its behavior are
unchanged. Updates the tsnapi public-API snapshots for @devframes/hub
to reflect the new exported type.

Author: dvcolomban

packages/hub/src/types/messages.ts

@@ -42,8 +42,8 @@ export interface DevframeMessageActivateAction {
 
 /**
  * `'command'` invokes a command from the hub's command registry (the same
- * registry backing the command palette) by `command.id`, passing
- * `command.params` through as its argument, via the hub's
+ * registry backing the command palette) by `command.id`, spreading
+ * `command.params` as its positional arguments, via the hub's
  * `hub:commands:execute` RPC.
  */
 export interface DevframeMessageCommandAction {
@@ -52,8 +52,8 @@ export interface DevframeMessageCommandAction {
   /** Button label shown in the messages panel. */
   label: string
   kind: 'command'
-  /** The command to invoke, plus an optional params bag. */
-  command: { id: string, params?: Record<string, unknown> }
+  /** The command to invoke, plus an optional list of positional arguments. */
+  command: { id: string, params?: unknown[] }
 }
 
 export type DevframeMessageAction = DevframeMessageActivateAction | DevframeMessageCommandAction

plugins/messages/src/client/App.vue

@@ -75,7 +75,7 @@ async function onActivate(action: DevframeMessageAction): Promise<void> {
     return
   }
   if (action.kind === 'command')
-    await callOptional('hub:commands:execute', action.command.id, action.command.params)
+    await callOptional('hub:commands:execute', action.command.id, ...(action.command.params ?? []))
 }
 
 async function onDismiss(id: string): Promise<void> {

tests/__snapshots__/tsnapi/@devframes/hub/index.snapshot.d.ts

@@ -147,7 +147,7 @@ export interface DevframeMessageCommandAction {
   kind: 'command';
   command: {
     id: string;
-    params?: Record<string, unknown>;
+    params?: unknown[];
   };
 }
 export interface DevframeMessageElementPosition {