Add reusable workflows for PRs and testing builds

app/build.gradle.kts

@@ -7,6 +7,7 @@ plugins {
     alias(libs.plugins.kotlinAndroid)
     alias(libs.plugins.kotlinSerialization)
     alias(libs.plugins.ksp)
+    alias(libs.plugins.detekt)
 }
 
 val keystorePropertiesFile: File = rootProject.file("keystore.properties")
@@ -92,10 +93,16 @@ android {
 
     lint {
         checkReleaseBuilds = false
-        abortOnError = false
+        abortOnError = true
+        warningsAsErrors = true
+        baseline = file("lint-baseline.xml")
     }
 }
 
+detekt {
+    baseline = file("detekt-baseline.xml")
+}
+
 dependencies {
     implementation(libs.fossify.commons)
     implementation(libs.eventbus)