release: cut 0.3.2 — get the crash fix onto Codeberg

No app-code change from 0.3.1: this exists to re-run the release pipeline
now that the Codeberg publish step is fixed. 0.3.1's APK reached F-Droid but
its Codeberg release 500'd, so anyone installing from Codeberg or Obtainium
is still on the crashing 0.3.0 — cutting 0.3.2 gets them the fix and proves
the workflow fix in the only way that counts, a real release.

Chosen over hand-patching the 0.3.1 release onto Codeberg: same outcome for
users, minus a manual APK upload, and it actually exercises the pipeline.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/build.gradle.kts

@@ -29,8 +29,8 @@ android {
         // release itself (versionCode is pinned to MAJOR*10000 + MINOR*100 +
         // PATCH from versionName, e.g. 0.2.0 -> 200). The Gitea release is marked
         // as a pre-release while MAJOR is 0. See docs/RELEASING.md.
-        versionCode = 301
-        versionName = "0.3.1"
+        versionCode = 302
+        versionName = "0.3.2"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
     }