build: shrink Android app release bundle

apps/android/app/build.gradle.kts

@@ -106,6 +106,10 @@ android {
                     "/META-INF/LICENSE*.txt",
                     "DebugProbesKt.bin",
                     "kotlin-tooling-metadata.json",
+                    "org/bouncycastle/pqc/crypto/picnic/lowmcL1.bin.properties",
+                    "org/bouncycastle/pqc/crypto/picnic/lowmcL3.bin.properties",
+                    "org/bouncycastle/pqc/crypto/picnic/lowmcL5.bin.properties",
+                    "org/bouncycastle/x509/CertPathReviewerMessages*.properties",
                 )
         }
     }
@@ -170,7 +174,6 @@ dependencies {
     // material-icons-extended pulled in full icon set (~20 MB DEX). Only ~18 icons used.
     // R8 will tree-shake unused icons when minify is enabled on release builds.
     implementation("androidx.compose.material:material-icons-extended")
-    implementation("androidx.navigation:navigation-compose:2.9.7")
 
     debugImplementation("androidx.compose.ui:ui-tooling")
 
@@ -195,7 +198,6 @@ dependencies {
     implementation("androidx.camera:camera-camera2:1.5.2")
     implementation("androidx.camera:camera-lifecycle:1.5.2")
     implementation("androidx.camera:camera-video:1.5.2")
-    implementation("androidx.camera:camera-view:1.5.2")
     implementation("com.google.android.gms:play-services-code-scanner:16.1.0")
 
     // Unicast DNS-SD (Wide-Area Bonjour) for tailnet discovery domains.

apps/android/app/proguard-rules.pro

@@ -1,26 +1,6 @@
-# ── App classes ───────────────────────────────────────────────────
--keep class ai.openclaw.app.** { *; }
-
-# ── Bouncy Castle ─────────────────────────────────────────────────
--keep class org.bouncycastle.** { *; }
 -dontwarn org.bouncycastle.**
-
-# ── CameraX ───────────────────────────────────────────────────────
--keep class androidx.camera.** { *; }
-
-# ── kotlinx.serialization ────────────────────────────────────────
--keep class kotlinx.serialization.** { *; }
--keepclassmembers class * {
-    @kotlinx.serialization.Serializable *;
-}
--keepattributes *Annotation*, InnerClasses
-
-# ── OkHttp ────────────────────────────────────────────────────────
 -dontwarn okhttp3.**
 -dontwarn okio.**
--keep class okhttp3.internal.platform.** { *; }
-
-# ── Misc suppressions ────────────────────────────────────────────
 -dontwarn com.sun.jna.**
 -dontwarn javax.naming.**
 -dontwarn lombok.Generated