feat(quick-261009-dkv): Teilen mit Personen und Gruppen - Durchstich, Oberflaeche

- Teilen-Dialog (Suche mit Verzoegerung, Ergebnisliste als Combobox, Berechtigung
  je Zeile aendern, entfernen) auf dem Modul-Dialog, Fehler mit Meldung der Nextcloud
- Menueeintrag Teilen (nur bei Buchstabe R), Freigabe-Kennzeichen in Liste und Raster
  (ausgehend als Knopf, eingehend als Markierung)
- Web-Client, reine Hilfen (Berechtigungsauswahl, Passwort erzeugen), Fehlertexte
  und Meldungen de/en; sharingDisabled traegt scope=groups fuer den Gruppentext

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

apps/web/src/messages/en.json

@@ -2471,6 +2471,7 @@
         "downloadZip": "Download as ZIP",
         "rename": "Rename",
         "move": "Move",
+        "share": "Share",
         "openInNextcloud": "Open in Nextcloud",
         "delete": "Delete"
       },
@@ -2572,6 +2573,38 @@
         "skip": "Skip"
       }
     },
+    "share": {
+      "title": "Share “{name}”",
+      "loading": "Loading shares …",
+      "done": "Done",
+      "hidden": "{count, plural, one {One more share, for example by email, is only visible in Nextcloud.} other {# more shares, for example by email, are only visible in Nextcloud.}}",
+      "people": {
+        "title": "People and groups",
+        "searchLabel": "Search for a person or group",
+        "searchPlaceholder": "Enter a name",
+        "newAccess": "Permission for the next share",
+        "searching": "Searching …",
+        "minChars": "Enter at least {count} characters.",
+        "noResults": "Nobody found.",
+        "results": "Search results",
+        "group": "Group",
+        "alreadyShared": "already shared",
+        "empty": "Not shared with anyone yet.",
+        "accessFor": "Permission for {name}",
+        "remove": "Remove share for {name}",
+        "expires": "valid until {date}"
+      },
+      "access": {
+        "view": "View",
+        "edit": "Edit",
+        "upload": "Upload only",
+        "custom": "Custom permission"
+      },
+      "indicator": {
+        "outgoing": "Open shares of “{name}”",
+        "incoming": "Shared with you"
+      }
+    },
     "codes": {
       "lengthRequired": "The size of the file could not be determined. Please try again.",
       "chunkTooLarge": "A part of the file was too large. Please reload the page and try again.",
@@ -2590,7 +2623,21 @@
       "invalidPath": "This name is not allowed.",
       "nextcloudUnavailable": "Nextcloud cannot be reached or does not respond in time.",
       "generic": "That did not work. Please try again.",
-      "selectionTooLarge": "Too many entries for one ZIP file. Select fewer entries or download the whole folder."
+      "selectionTooLarge": "Too many entries for one ZIP file. Select fewer entries or download the whole folder.",
+      "sharingDisabled": "Sharing is switched off in your Nextcloud.",
+      "sharingDisabledGroups": "Sharing with groups is switched off in your Nextcloud.",
+      "linkSharingDisabled": "Public links are switched off in your Nextcloud.",
+      "shareAccessInvalid": "This permission is not possible for this item.",
+      "shareRecipientInvalid": "Your Nextcloud does not know this person or group.",
+      "shareAlreadyExists": "The item is already shared this way. Change the existing share instead.",
+      "sharePasswordRequired": "Your Nextcloud requires a password for links.",
+      "sharePasswordRejected": "Nextcloud rejects this password. Please choose a longer or less common password.",
+      "shareExpiryRequired": "Your Nextcloud requires an expiry date for links.",
+      "shareExpiryInvalid": "Your Nextcloud does not allow this expiry date. It must not be in the past or after the latest permitted date.",
+      "shareRejected": "Nextcloud rejected this share.",
+      "shareNotFound": "This share no longer exists.",
+      "tooManyShares": "You have created many shares in a short time. Please wait {minutes, plural, one {# minute} other {# minutes}}.",
+      "ncDetail": "Message from Nextcloud: {detail}"
     }
   }
 }