feat(feishu): sync with clawdbot-feishu #137 (multi-account support)

- Sync latest changes from clawdbot-feishu including multi-account support
- Add eslint-disable comments for SDK-related any types
- Remove unused imports
- Fix no-floating-promises in monitor.ts

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

extensions/feishu/src/policy.ts

@@ -58,7 +58,6 @@ export function resolveFeishuGroupConfig(params: {
 
 export function resolveFeishuGroupToolPolicy(
   params: ChannelGroupContext,
-  // eslint-disable-next-line @typescript-eslint/no-redundant-type-constituents -- type resolution issue with plugin-sdk
 ): GroupToolPolicyConfig | undefined {
   const cfg = params.cfg.channels?.feishu as FeishuConfig | undefined;
   if (!cfg) {