feat: unify directory across channels

src/channels/plugins/telegram.ts

@@ -155,6 +155,48 @@ export const telegramPlugin: ChannelPlugin<ResolvedTelegramAccount> = {
   messaging: {
     normalizeTarget: normalizeTelegramMessagingTarget,
   },
+  directory: {
+    self: async () => null,
+    listPeers: async ({ cfg, accountId, query, limit }) => {
+      const account = resolveTelegramAccount({ cfg, accountId });
+      const q = query?.trim().toLowerCase() || "";
+      const raw = [
+        ...(account.config.allowFrom ?? []).map((entry) => String(entry)),
+        ...Object.keys(account.config.dms ?? {}),
+      ];
+      const peers = Array.from(
+        new Set(
+          raw
+            .map((entry) => entry.trim())
+            .filter(Boolean)
+            .map((entry) => entry.replace(/^(telegram|tg):/i, "")),
+        ),
+      )
+        .map((entry) => {
+          const trimmed = entry.trim();
+          if (!trimmed) return null;
+          if (/^-?\d+$/.test(trimmed)) return trimmed;
+          const withAt = trimmed.startsWith("@") ? trimmed : `@${trimmed}`;
+          return withAt;
+        })
+        .filter((id): id is string => Boolean(id))
+        .filter((id) => (q ? id.toLowerCase().includes(q) : true))
+        .slice(0, limit && limit > 0 ? limit : undefined)
+        .map((id) => ({ kind: "user", id }) as const);
+      return peers;
+    },
+    listGroups: async ({ cfg, accountId, query, limit }) => {
+      const account = resolveTelegramAccount({ cfg, accountId });
+      const q = query?.trim().toLowerCase() || "";
+      const groups = Object.keys(account.config.groups ?? {})
+        .map((id) => id.trim())
+        .filter((id) => Boolean(id) && id !== "*")
+        .filter((id) => (q ? id.toLowerCase().includes(q) : true))
+        .slice(0, limit && limit > 0 ? limit : undefined)
+        .map((id) => ({ kind: "group", id }) as const);
+      return groups;
+    },
+  },
   actions: telegramMessageActions,
   setup: {
     resolveAccountId: ({ accountId }) => normalizeAccountId(accountId),