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

supabase/functions/message-send/index.ts

@@ -0,0 +1,43 @@
+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; content?: string };
+  try {
+    body = await req.json();
+  } catch {
+    return fail("Invalid JSON body");
+  }
+
+  const channelId = body.channel_id;
+  const content = (body.content ?? "").trim();
+
+  if (!channelId) return fail("channel_id is required");
+  if (!content) return fail("content is required");
+  if (content.length > 4000) return fail("content is too long");
+
+  const { data: message, error } = await client
+    .from("messages")
+    .insert({
+      channel_id: channelId,
+      author_user_id: user.id,
+      content,
+    })
+    .select("id, channel_id, author_user_id, content, created_at, edited_at, deleted_at")
+    .single();
+
+  if (error) {
+    if (error.code === "42501") return fail("forbidden", 403);
+    return fail(error.message, 400);
+  }
+
+  return json({ message }, 201);
+});