app v1.1.0: delete-after-upload, duplicate status, clear history, open-with

- Delete the source file once an upload is confirmed (best-effort: SAF
  picks get a persisted read+write grant and are removed; read-only
  shared streams are left in place). Cache copy always removed. A removed
  source shows as 'removed from phone'.
- Distinguish duplicates: a HEAD (or the server's 200 existed) marks the
  item 'Duplicate · already on server' — content is never re-sent or
  overwritten, since the name IS the sha256. Different content = different
  hash = a new file, not a duplicate.
- 'Clear history' app-bar button clears finished/duplicate/failed rows.
- Register as an 'Open with' target (ACTION_VIEW, content/file) in
  addition to the existing share-sheet target.
- Room schema v2 (destructive fallback; queue is ephemeral).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

android/app/build.gradle.kts

@@ -22,8 +22,8 @@ android {
         applicationId = "eu.itaz.internaluploader"
         minSdk = 26
         targetSdk = 35
-        versionCode = 1
-        versionName = "1.0.0"
+        versionCode = 2
+        versionName = "1.1.0"
 
         // The one place the server address exists. Never rendered in the UI;
         // a pairing QR can carry a different origin and overrides this.