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/lib/appwrite/job-file-queries.ts

@@ -4,6 +4,7 @@ import { Query } from "node-appwrite";
 
 import { BUCKETS, DATABASE_ID, TABLES, type JobFile } from "./schema";
 import { createAdminClient } from "./server";
+import { toPlain } from "./serialize";
 import { getFileViewUrl } from "./storage";
 
 export type JobFileWithUrl = JobFile & {
@@ -22,8 +23,10 @@ export async function listJobFiles(jobId: string): Promise<JobFileWithUrl[]> {
     ],
   });
   const rows = result.rows as unknown as JobFile[];
-  return rows.map((r) => ({
-    ...r,
-    url: getFileViewUrl(BUCKETS.jobFiles, r.fileId),
-  }));
+  return toPlain(
+    rows.map((r) => ({
+      ...r,
+      url: getFileViewUrl(BUCKETS.jobFiles, r.fileId),
+    })),
+  );
 }