fix: guard channel-tools listActions against plugin crashes

Wraps plugin.actions.listActions() in a try/catch so a single
broken channel plugin cannot crash the entire agent boot sequence.

Errors are logged once per plugin+message (deduped) via
defaultRuntime.error() and the call gracefully returns an empty
array instead of propagating the exception.

Fixes: 'Cannot read properties of undefined (reading listActions)'
after the clawdbot→moltbot rename left some plugin state undefined.

src/agents/channel-tools.ts

@@ -1,8 +1,13 @@
 import { getChannelDock } from "../channels/dock.js";
 import { getChannelPlugin, listChannelPlugins } from "../channels/plugins/index.js";
 import { normalizeAnyChannelId } from "../channels/registry.js";
-import type { ChannelAgentTool, ChannelMessageActionName } from "../channels/plugins/types.js";
+import type {
+  ChannelAgentTool,
+  ChannelMessageActionName,
+  ChannelPlugin,
+} from "../channels/plugins/types.js";
 import type { MoltbotConfig } from "../config/config.js";
+import { defaultRuntime } from "../runtime.js";
 
 /**
  * Get the list of supported message actions for a specific channel.
@@ -16,7 +21,7 @@ export function listChannelSupportedActions(params: {
   const plugin = getChannelPlugin(params.channel as Parameters<typeof getChannelPlugin>[0]);
   if (!plugin?.actions?.listActions) return [];
   const cfg = params.cfg ?? ({} as MoltbotConfig);
-  return plugin.actions.listActions({ cfg });
+  return runPluginListActions(plugin, cfg);
 }
 
 /**
@@ -29,7 +34,7 @@ export function listAllChannelSupportedActions(params: {
   for (const plugin of listChannelPlugins()) {
     if (!plugin.actions?.listActions) continue;
     const cfg = params.cfg ?? ({} as MoltbotConfig);
-    const channelActions = plugin.actions.listActions({ cfg });
+    const channelActions = runPluginListActions(plugin, cfg);
     for (const action of channelActions) {
       actions.add(action);
     }
@@ -64,3 +69,35 @@ export function resolveChannelMessageToolHints(params: {
     .map((entry) => entry.trim())
     .filter(Boolean);
 }
+
+const loggedListActionErrors = new Set<string>();
+
+function runPluginListActions(
+  plugin: ChannelPlugin,
+  cfg: MoltbotConfig,
+): ChannelMessageActionName[] {
+  if (!plugin.actions?.listActions) return [];
+  try {
+    const listed = plugin.actions.listActions({ cfg });
+    return Array.isArray(listed) ? listed : [];
+  } catch (err) {
+    logListActionsError(plugin.id, err);
+    return [];
+  }
+}
+
+function logListActionsError(pluginId: string, err: unknown) {
+  const message = err instanceof Error ? err.message : String(err);
+  const key = `${pluginId}:${message}`;
+  if (loggedListActionErrors.has(key)) return;
+  loggedListActionErrors.add(key);
+  const stack = err instanceof Error && err.stack ? err.stack : null;
+  const details = stack ?? message;
+  defaultRuntime.error?.(`[channel-tools] ${pluginId}.actions.listActions failed: ${details}`);
+}
+
+export const __testing = {
+  resetLoggedListActionErrors() {
+    loggedListActionErrors.clear();
+  },
+};