feat(jobs): purge file binaries when a job is delivered, keep metadata

Active scan + image traffic was going to bloat Storage fast — every
delivered case has tens of MB of STL hanging around forever. Now closing
a case via 'Teslim Aldım' fires a background archive sweep that deletes
the binary from the bucket but keeps the job_files row, so audit
('kim, ne, ne zaman yükledi') is preserved.

  - DB: job_files.archivedAt datetime (nullable).
  - archiveJobFiles(jobId) (lib/appwrite/job-file-archive.ts):
    lists rows, storage.deleteFile each, stamps archivedAt on the row.
    All in try/catch so partial Storage failures don't roll back the
    'delivered' transition.
  - markDeliveredAction fires it as 'void archiveJobFiles(jobId)' — same
    fire-and-forget pattern as audit/notifications/finance sync.

UI / API
  - Job detail file row dims to 60% opacity, shows 'Arşivlendi
    {tarih}' inline, and disables both the download dialog trigger and
    the STL viewer button.
  - /api/jobs/[jobId]/files/[fileId]/download returns 410 Gone with a
    Turkish message when archivedAt is set — direct-URL hot links can't
    fish the file back either.

src/lib/appwrite/job-actions.ts

@@ -6,6 +6,7 @@ import { z } from "zod";
 
 import { logAudit } from "./audit";
 import { syncFinanceForJob } from "./finance-sync";
+import { archiveJobFiles } from "./job-file-archive";
 import { createNotification } from "./notification-helpers";
 import { calculateJobPriceForProsthetic } from "./pricing";
 import {
@@ -564,6 +565,9 @@ export async function markDeliveredAction(
       jobId,
       message: `Hasta ${job.patientCode} işi teslim alındı.`,
     });
+    // Free up Storage now that the case is closed. Metadata rows stay for
+    // the audit trail; only the binaries go.
+    void archiveJobFiles(jobId);
   } catch (e) {
     return { ok: false, error: appwriteError(e, "Teslim alınamadı.") };
   }