refactor: Replace vendored svelte-persistent-store with shared persisted rune

History now uses the shared persist.svelte helpers, the MacFJA store
copy is deleted, and the esserializer dependency it required is dropped.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

pnpm-lock.yaml

@@ -195,9 +195,6 @@ importers:
       eslint-plugin-unicorn:
         specifier: ^65.0.0
         version: 65.0.0(eslint@10.4.1(jiti@1.21.7))
-      esserializer:
-        specifier: ^1.3.11
-        version: 1.3.11
       globals:
         specifier: ^17.6.0
         version: 17.6.0
@@ -2007,9 +2004,6 @@ packages:
     resolution: {integrity: sha512-KmfKL3b6G+RXvP8N1vr3Tq1kL/oCFgn2NYXEtqP8/L3pKapUA4G8cFVaoF3SU323CD4XypR/ffioHmkti6/Tag==}
     engines: {node: '>=4.0'}
 
-  esserializer@1.3.11:
-    resolution: {integrity: sha512-slnPPuTEaYYHqJOvtBVldmQRlKkJlOCMytd3Il9UNeI9DHlHV5c1wqyUe9f4LZCk69+jZm6zjhwPVNIj8/1I4g==}
-
   estraverse@5.3.0:
     resolution: {integrity: sha512-MMdARuVEQziNTeJD8DgMqmhwR11BRQ/cBP+pLtYdSTnf3MIO8fFeiINEbX36ZdNlfU/7A9f3gUw49B3oQsvwBA==}
     engines: {node: '>=4.0'}
@@ -5699,8 +5693,6 @@ snapshots:
     dependencies:
       estraverse: 5.3.0
 
-  esserializer@1.3.11: {}
-
   estraverse@5.3.0: {}
 
   estree-walker@2.0.2: