Added correct RLS and month api routes

server/api/calendars/months/query.get.ts

@@ -0,0 +1,28 @@
+import { serverSupabaseClient } from "#supabase/server";
+import { z } from 'zod'
+import type { CalendarMonth } from "~/models/CalendarMonth";
+
+const querySchema = z.object({
+  calendarId: z.number({ coerce: true }).positive().int()
+})
+
+export default defineEventHandler(async (event) => {
+  const client = await serverSupabaseClient(event)
+  const query = await getValidatedQuery(event, querySchema.parse)
+
+  const output = client
+    .from('calendar_months')
+    .select(`
+      id,
+      name,
+      days,
+      position,
+      calendar_id
+    `)
+
+  if (query.calendarId) {
+    output.eq('calendar_id', query.calendarId)
+  }
+
+  return output.returns<CalendarMonth[]>()
+})