Add version files and update imports for trip model; enhance error handling

supabase/functions/message-list/index.ts

@@ -0,0 +1,48 @@
+import { fail, handleOptions, json } from "../_shared/http.ts";
+import { requireUser } from "../_shared/supabase.ts";
+
+Deno.serve(async (req) => {
+  const preflight = handleOptions(req);
+  if (preflight) return preflight;
+
+  if (req.method !== "POST") return fail("Method not allowed", 405);
+
+  const { client, user, error: userError } = await requireUser(req);
+  if (!user) return fail(userError ?? "Unauthorized", 401);
+
+  let body: { channel_id?: string; before?: string; limit?: number };
+  try {
+    body = await req.json();
+  } catch {
+    return fail("Invalid JSON body");
+  }
+
+  const channelId = body.channel_id;
+  if (!channelId) return fail("channel_id is required");
+
+  const limit = Math.max(1, Math.min(Number(body.limit) || 50, 100));
+  const before = body.before?.trim();
+
+  let query = client
+    .from("messages")
+    .select("id, channel_id, author_user_id, content, created_at, edited_at")
+    .eq("channel_id", channelId)
+    .is("deleted_at", null)
+    .order("created_at", { ascending: false })
+    .limit(limit);
+
+  if (before) {
+    query = query.lt("created_at", before);
+  }
+
+  const { data: rows, error } = await query;
+  if (error) {
+    if (error.code === "42501") return fail("forbidden", 403);
+    return fail(error.message, 400);
+  }
+
+  return json({
+    messages: (rows ?? []).reverse(),
+    next_before: rows && rows.length > 0 ? rows[rows.length - 1].created_at : null,
+  });
+});