refactor: unify FilePond edit previews + clean upload UI and shared fragments

* Move shared `fichiers-fragment.php` from `partage/` to `templates/partials/form/`
  and update all include/require references
* `.gitignore`: exclude SQLite WAL/SHM journal files
* FilePond UI:

  * change uploaded file block border state from yellow to green
  * restyle image previews to use site light-theme colors
* Edit mode:

  * remove custom existing-file preview list implementation
  * preload existing files directly into FilePond pools
  * include `cover` and `note_intention` assets in FilePond-managed state
* Remove obsolete upload progress bar UI and related JS includes
* Remove deprecated `Écriture` + `Image` format types from upload flow/configuration

app/storage/tmp/filepond/12e0bfc40a62179cc3ada9f38b8e2614/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"cover","original_name":"2026-03-30-112553_hyprshot.png","mime":"image/png","ext":"png","size":790551,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T11:03:34+00:00"}

app/storage/tmp/filepond/4dcd1b78c9f5e136c878e9e9e829c4cc/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"cover","original_name":"2026-03-30-112553_hyprshot.png","mime":"image/png","ext":"png","size":790551,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:50:23+00:00"}

app/storage/tmp/filepond/6ae2b2848899757706424ebfe383236e/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"note_intention","original_name":"nixing_the_fix_report_final_5521_630pm-508_002.pdf","mime":"application/pdf","ext":"pdf","size":1296086,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T11:03:37+00:00"}

app/storage/tmp/filepond/a74918292b80d2407b7a460152167a48/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"annexe","original_name":"Nixing the Fix_ An FTC Report to Congress on Repair Restrictions - nixing_the_fix_report_final_5521_630pm-508_002.pdf","mime":"application/pdf","ext":"pdf","size":5861686,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:50:16+00:00"}

app/storage/tmp/filepond/aff4c36c7e233e24914ccae418b0c190/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"note_intention","original_name":"invoice_25-12-01_251200002_les-iles-mardi.pdf","mime":"application/pdf","ext":"pdf","size":349083,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:30:01+00:00"}

app/storage/tmp/filepond/cb63cb9e87000016b73d6f1a2413cce6/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"cover","original_name":"2026-03-30-112553_hyprshot.png","mime":"image/png","ext":"png","size":790551,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:46:44+00:00"}

app/storage/tmp/filepond/d2f11b313134b1f2686e6238f46e9430/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"cover","original_name":"Screenshot_2026-05-08_at_11-25-04_DepNum.png","mime":"image/png","ext":"png","size":134916,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:30:08+00:00"}

app/storage/tmp/filepond/d3242080d85f2076ae2d8c657fcea6d3/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"note_intention","original_name":"Nixing the Fix_ An FTC Report to Congress on Repair Restrictions - nixing_the_fix_report_final_5521_630pm-508_002.pdf","mime":"application/pdf","ext":"pdf","size":5861686,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:46:38+00:00"}

app/storage/tmp/filepond/f1af4e988d9557278b98fa87946be69b/manifest.json

@@ -0,0 +1 @@
+{"queue_type":"note_intention","original_name":"Proposition_proce\u0301dure_licences_V2.pdf","mime":"application/pdf","ext":"pdf","size":32119,"session_id":"ca4d45dbfb0b3fc4f87f725826df9d35","uploaded_at":"2026-05-12T10:50:27+00:00"}