fix: serialize Appwrite rows before sending to client components

Next 16's server-to-client serializer rejects values whose prototype is
not plain Object. node-appwrite returns row objects carrying internal
helpers (toString etc.), so every <ClientComponent prop={row}> crashed with
'Only plain objects, and a few built-ins, can be passed to Client
Components from Server Components.'

Added a tiny toPlain helper that JSON-roundtrips any value and applied it
at the boundary of every query that returns rows consumed by 'use client'
files:
  - connection-queries (enrich)
  - job-queries (inbound, outbound, approved labs)
  - job-file-queries (listJobFiles)
  - job-history-queries (listJobHistory)
  - prosthetic-queries (listProsthetics, listActiveProsthetics)
  - finance-queries (listFinanceEntries)
  - notification-helpers (listNotifications)
  - dashboard-queries (getDashboardData)
  - jobs/[jobId] page (direct getRow for the job prop on JobActionsPanel)

Internal Maps inside queries stay live — only the data crossing the
server/client boundary is normalised.

src/app/(dashboard)/jobs/[jobId]/page.tsx

@@ -7,6 +7,7 @@ import { Button } from "@/components/ui/button";
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card";
 import { listJobFiles } from "@/lib/appwrite/job-file-queries";
 import { listJobHistory } from "@/lib/appwrite/job-history-queries";
+import { toPlain } from "@/lib/appwrite/serialize";
 import {
   JOB_STATUS_LABELS,
   JOB_STEP_LABELS,
@@ -57,7 +58,7 @@ export default async function JobDetailPage({
   let job: Job;
   try {
     const row = await tablesDB.getRow(DATABASE_ID, TABLES.jobs, jobId);
-    job = row as unknown as Job;
+    job = toPlain(row as unknown as Job);
   } catch {
     notFound();
   }