Fix migrations and deploy issues + errors + linting

- scan both pending/ and applied/ dirs so remote catch-up works
- fix remote 500s: run.php handles per-statement errors so VIEW rebuilds run after duplicate columns; replace mb_strimwidth with substr (no mbstring extension on server)
- add missing migration: 015_license_custom.sql (column existed in schema.sql but was never migrated)
- remote: fgetcsv enclosure single-char + AdminLogger permission-denied
guard + deploy always migrates
- fix admin-filters wrapping: restore flex-wrap, flex-basis on
inputs/selects, shrink-protect buttons
- fix phpstan: remove redundant ?? [] after isset guard in
ThesisEditController
- biome: exclude vendored min.js via includes patterns;
lint whole js dir; modernise beforeunload-guard.js

biome.json

@@ -1,7 +1,13 @@
 {
   "$schema": "https://biomejs.dev/schemas/2.3.15/schema.json",
   "files": {
-    "ignoreUnknown": true
+    "ignoreUnknown": true,
+    "includes": [
+      "**",
+      "!app/public/assets/js/htmx.min.js",
+      "!app/public/assets/js/overtype.min.js",
+      "!app/public/assets/js/sortable.min.js"
+    ]
   },
   "linter": {
     "enabled": true,
@@ -10,6 +16,6 @@
     }
   },
   "formatter": {
-    "enabled": false
+    "enabled": true
   }
 }