Add Zod validation to all API endpoints and remove debug test route

Adds schema-based input validation across helcim, events, members,
series, admin, and updates API endpoints. Removes the peer-support
debug test endpoint. Adds validation test coverage.

server/api/admin/series/tickets.put.js

@@ -8,23 +8,9 @@ export default defineEventHandler(async (event) => {
     await requireAdmin(event)
     await connectDB()
 
-    const body = await readBody(event)
+    const body = await validateBody(event, adminSeriesTicketsSchema)
     const { id, tickets } = body
 
-    if (!id) {
-      throw createError({
-        statusCode: 400,
-        statusMessage: 'Series ID is required'
-      })
-    }
-
-    if (!tickets) {
-      throw createError({
-        statusCode: 400,
-        statusMessage: 'Tickets configuration is required'
-      })
-    }
-
     // Find the series
     const series = await Series.findOne({ id })