Initial commit: HeliBoard + Gemma 4 on-device AI correction

Integrates LiteRT-LM (Google) with Gemma 4 E2B-it for on-device spell/grammar correction in HeliBoard. After sentence-ending punctuation, the model checks the sentence and shows a correction in the suggestion strip. Tapping it replaces the original text — fully offline, no cloud API. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-10 14:57:10 +02:00
commit aa8fff2c0d
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+# ============================================================
+# MediaPipe tasks-genai / LlmInference
+# ============================================================
+
+-keep class com.google.mediapipe.** { *; }
+-dontwarn com.google.mediapipe.**
+
+# Protobuf (used internally by MediaPipe)
+-keep class com.google.mediapipe.proto.** { *; }
+-keepclassmembers class * extends com.google.protobuf.GeneratedMessageLite {
+    <fields>;
+}
+-keep class com.google.protobuf.** { *; }
+-dontwarn com.google.protobuf.**
+
+# Google Flogger (used by MediaPipe internals)
+-keep class com.google.common.flogger.** { *; }
+-dontwarn com.google.common.flogger.**
+
+# JNI methods must not be renamed
+-keepclasseswithmembernames class * {
+    native <methods>;
+}
+
+# MediaPipe framework interop
+-keep public interface com.google.mediapipe.framework.* { public *; }
+-keepclassmembers class com.google.mediapipe.framework.Packet {
+    public static *** create(...);
+    public long getNativeHandle();
+    public void release();
+}
+-keepclassmembers class com.google.mediapipe.framework.PacketCreator {
+    public void releaseWithSyncToken(...);
+}
+-keep class com.google.mediapipe.framework.MediaPipeException {
+    <init>(int, byte[]);
+}
+
+# ============================================================
+# AI engine — never obfuscate so Java↔Kotlin interop is stable
+# ============================================================
+-keep class helium314.keyboard.latin.ai.** { *; }
+-keepclassmembers class helium314.keyboard.latin.ai.** { *; }
+
+# ============================================================
+# Kotlin coroutines
+# ============================================================
+-keep class kotlinx.coroutines.** { *; }
+-dontwarn kotlinx.coroutines.**
+
+# Keep coroutine debug metadata (optional, remove in prod to shrink further)
+-keepattributes SourceFile,LineNumberTable
+
+# ============================================================
+# HeliBoard — keep JNI-accessible classes and reflection targets
+# ============================================================
+-keep class helium314.keyboard.latin.BinaryDictionary { *; }
+-keep class helium314.keyboard.latin.DicTraverseSession { *; }
+-keep class helium314.keyboard.latin.NgramContext { *; }
+-keep class helium314.keyboard.latin.utils.BinaryDictionaryUtils { *; }
+-dontwarn helium314.keyboard.**