Bump app version to 1.0.0-alpha

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: StuartCameronCode

app/pubspec.yaml

@@ -1,7 +1,7 @@
 name: vapourbox
 description: "Video processing and cleanup powered by VapourSynth"
 publish_to: 'none'
-version: 0.9.3+19
+version: 1.0.0-alpha+20
 
 environment:
   sdk: ^3.6.2

worker/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "vapourbox-worker"
-version = "0.9.3"
+version = "1.0.0-alpha"
 edition = "2021"
 description = "Video processing worker using VapourSynth"
 authors = ["Stuart Cameron"]