build(app): debug build installs side-by-side as 'Quire Debug'

Author: vitofico

app/build.gradle.kts

@@ -56,7 +56,14 @@ android {
         }
     }
     buildTypes {
-        debug { isMinifyEnabled = false }
+        debug {
+            isMinifyEnabled = false
+            // Distinct package + label so a debug build installs side-by-side
+            // with a signed release "Quire" instead of failing on signature
+            // mismatch. Debug-only; release is unaffected.
+            applicationIdSuffix = ".debug"
+            versionNameSuffix = "-debug"
+        }
         release {
             isMinifyEnabled = false   // Phase 1 only; revisit before publishing
             // AGP 8.3+ embeds git origin/branch/SHA into the APK by default,

app/src/debug/res/values/strings.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Debug-only override so a debug build installs/reads as "Quire Debug". -->
+    <string name="app_name">Quire Debug</string>
+</resources>