Version scheme = desktop lockstep (1.0.4), versionCode included

Drops upstream's CalVer versionCode entirely; one-time downgrade means
pre-1.0.4 installs need a single uninstall/reinstall (accepted).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

plugins/src/main/kotlin/Versions.kt

@@ -30,35 +30,24 @@ import org.gradle.jvm.toolchain.JavaLanguageVersion
  */
 
 /**
- * Year of the version on 2 digits.
- * Do not update this value. it is updated by the release script.
+ * Blap versions the app in lockstep with the desktop release (upstream's CalVer scheme is
+ * gone). Bump these with every release; versionCode derives from them and must only grow
+ * within this scheme (max 2 digits for minor/patch).
  */
-private const val versionYear = 26
-
-/**
- * Month of the version on 2 digits. Value must be in [1,12].
- * Do not update this value. it is updated by the release script.
- */
-private const val versionMonth = 7
-
-/**
- * Release number in the month. Value must be in [0,99].
- * Do not update this value. it is updated by the release script.
- */
-private const val versionReleaseNumber = 3
+private const val versionMajor = 1
+private const val versionMinor = 0
+private const val versionPatch = 4
 
 object Versions {
     /**
      * Base version code that will be set in the Android Manifest.
      * The value will be modified at build time to add the ABI code when APK are build.
      * AAB will have a ABI code of 0.
-     * See comment above for the calculation method.
+     * NOTE: this is a one-time DOWNGRADE from the upstream CalVer codes (2026xxxxx) —
+     * installs from before 1.0.4 must be uninstalled once; sideloads update in place after.
      */
-    const val VERSION_CODE = (2000 + versionYear) * 10_000 + versionMonth * 100 + versionReleaseNumber
-    // Blap: the displayed version tracks the desktop release. VERSION_CODE stays on the
-    // CalVer formula above because Android requires it to only ever increase — keep
-    // bumping versionReleaseNumber (and month/year) for every release.
-    const val VERSION_NAME = "1.0.4"
+    const val VERSION_CODE = versionMajor * 10_000 + versionMinor * 100 + versionPatch
+    val VERSION_NAME = "$versionMajor.$versionMinor.$versionPatch"
 
     /**
      * Compile SDK version. Must be updated when a new Android version is released.
@@ -104,8 +93,8 @@ object Versions {
 
     // Perform some checks on the values to avoid releasing with bad values
     init {
-        require(versionMonth in 1..12) { "versionMonth must be in [1,12]" }
-        require(versionReleaseNumber in 0..99) { "versionReleaseNumber must be in [0,99]" }
+        require(versionMinor in 0..99) { "versionMinor must be in [0,99]" }
+        require(versionPatch in 0..99) { "versionPatch must be in [0,99]" }
         require(BUILD_TOOLS_VERSION.startsWith(COMPILE_SDK.toString())) { "When updating COMPILE_SDK, please also update BUILD_TOOLS_VERSION" }
     }
 }