Add Java and Kotlin API for NeMo Canary models (#2359)

Add support for the NeMo Canary model in both Java and Kotlin APIs, wiring it through
JNI and updating examples and CI.

- Introduce OfflineCanaryModelConfig in Kotlin and Java with builder patterns
- Extend OfflineRecognizer to accept and apply the new canary config via setConfig
- Update JNI binding (GetOfflineConfig) and getOfflineModelConfig mapping (type 32), 
   plus examples and CI workflows

sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineCanaryModelConfig.java

@@ -0,0 +1,80 @@
+// Copyright 2025 Xiaomi Corporation
+
+package com.k2fsa.sherpa.onnx;
+
+public class OfflineCanaryModelConfig {
+    private final String encoder;
+    private final String decoder;
+    private final String srcLang;
+    private final String tgtLang;
+    private final boolean usePnc;
+
+    private OfflineCanaryModelConfig(Builder builder) {
+        this.encoder = builder.encoder;
+        this.decoder = builder.decoder;
+        this.srcLang = builder.srcLang;
+        this.tgtLang = builder.tgtLang;
+        this.usePnc = builder.usePnc;
+    }
+
+    public static Builder builder() {
+        return new Builder();
+    }
+
+    public String getEncoder() {
+        return encoder;
+    }
+
+    public String getDecoder() {
+        return decoder;
+    }
+
+    public String getSrcLang() {
+        return srcLang;
+    }
+
+    public String getTgtLang() {
+        return tgtLang;
+    }
+
+    public boolean isUsePnc() {
+        return usePnc;
+    }
+
+    public static class Builder {
+        private String encoder = "";
+        private String decoder = "";
+        private String srcLang = "en";
+        private String tgtLang = "en";
+        private boolean usePnc = true;
+
+        public OfflineCanaryModelConfig build() {
+            return new OfflineCanaryModelConfig(this);
+        }
+
+        public Builder setEncoder(String encoder) {
+            this.encoder = encoder;
+            return this;
+        }
+
+        public Builder setDecoder(String decoder) {
+            this.decoder = decoder;
+            return this;
+        }
+
+        public Builder setSrcLang(String srcLang) {
+            this.srcLang = srcLang;
+            return this;
+        }
+
+        public Builder setTgtLang(String tgtLang) {
+            this.tgtLang = tgtLang;
+            return this;
+        }
+
+        public Builder setUsePnc(boolean usePnc) {
+            this.usePnc = usePnc;
+            return this;
+        }
+    }
+}

sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineModelConfig.java

@@ -12,6 +12,7 @@ public class OfflineModelConfig {
     private final OfflineSenseVoiceModelConfig senseVoice;
     private final OfflineDolphinModelConfig dolphin;
     private final OfflineZipformerCtcModelConfig zipformerCtc;
+    private final OfflineCanaryModelConfig canary;
     private final String teleSpeech;
     private final String tokens;
     private final int numThreads;
@@ -30,6 +31,7 @@ public class OfflineModelConfig {
         this.moonshine = builder.moonshine;
         this.nemo = builder.nemo;
         this.zipformerCtc = builder.zipformerCtc;
+        this.canary = builder.canary;
         this.senseVoice = builder.senseVoice;
         this.dolphin = builder.dolphin;
         this.teleSpeech = builder.teleSpeech;
@@ -78,6 +80,10 @@ public class OfflineModelConfig {
         return zipformerCtc;
     }
 
+    public OfflineCanaryModelConfig getCanary() {
+        return canary;
+    }
+
     public String getTokens() {
         return tokens;
     }
@@ -120,6 +126,7 @@ public class OfflineModelConfig {
         private OfflineSenseVoiceModelConfig senseVoice = OfflineSenseVoiceModelConfig.builder().build();
         private OfflineDolphinModelConfig dolphin = OfflineDolphinModelConfig.builder().build();
         private OfflineZipformerCtcModelConfig zipformerCtc = OfflineZipformerCtcModelConfig.builder().build();
+        private OfflineCanaryModelConfig canary = OfflineCanaryModelConfig.builder().build();
         private String teleSpeech = "";
         private String tokens = "";
         private int numThreads = 1;
@@ -158,6 +165,11 @@ public class OfflineModelConfig {
             return this;
         }
 
+        public Builder setCanary(OfflineCanaryModelConfig canary) {
+            this.canary = canary;
+            return this;
+        }
+
         public Builder setTeleSpeech(String teleSpeech) {
             this.teleSpeech = teleSpeech;
             return this;

sherpa-onnx/java-api/src/com/k2fsa/sherpa/onnx/OfflineRecognizer.java

@@ -4,10 +4,22 @@ package com.k2fsa.sherpa.onnx;
 
 public class OfflineRecognizer {
     private long ptr = 0;
+    private final OfflineRecognizerConfig config;
 
     public OfflineRecognizer(OfflineRecognizerConfig config) {
         LibraryLoader.maybeLoad();
         ptr = newFromFile(config);
+
+        this.config = config;
+    }
+
+    public void setConfig(OfflineRecognizerConfig config) {
+        setConfig(ptr, config);
+        // we don't update this.config
+    }
+
+    public OfflineRecognizerConfig getConfig() {
+        return config;
     }
 
     public void decode(OfflineStream s) {
@@ -60,6 +72,8 @@ public class OfflineRecognizer {
 
     private native void decode(long ptr, long streamPtr);
 
+    private native void setConfig(long ptr, OfflineRecognizerConfig config);
+
     private native void decodeStreams(long ptr, long[] streamPtrs);
 
     private native Object[] getResult(long streamPtr);