refactor!: rename chat providers to channels

src/channels/plugins/outbound/slack.ts

@@ -0,0 +1,37 @@
+import { sendMessageSlack } from "../../../slack/send.js";
+import type { ChannelOutboundAdapter } from "../types.js";
+
+export const slackOutbound: ChannelOutboundAdapter = {
+  deliveryMode: "direct",
+  chunker: null,
+  textChunkLimit: 4000,
+  resolveTarget: ({ to }) => {
+    const trimmed = to?.trim();
+    if (!trimmed) {
+      return {
+        ok: false,
+        error: new Error(
+          "Delivering to Slack requires --to <channelId|user:ID|channel:ID>",
+        ),
+      };
+    }
+    return { ok: true, to: trimmed };
+  },
+  sendText: async ({ to, text, accountId, deps, replyToId }) => {
+    const send = deps?.sendSlack ?? sendMessageSlack;
+    const result = await send(to, text, {
+      threadTs: replyToId ?? undefined,
+      accountId: accountId ?? undefined,
+    });
+    return { channel: "slack", ...result };
+  },
+  sendMedia: async ({ to, text, mediaUrl, accountId, deps, replyToId }) => {
+    const send = deps?.sendSlack ?? sendMessageSlack;
+    const result = await send(to, text, {
+      mediaUrl,
+      threadTs: replyToId ?? undefined,
+      accountId: accountId ?? undefined,
+    });
+    return { channel: "slack", ...result };
+  },
+};