Advance Wayland and KDE package bring-up

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

local/recipes/kde/kf6-kcodecs/source/src/probers/nsEUCKRProber.cpp

@@ -0,0 +1,66 @@
+/*  -*- C++ -*-
+    SPDX-FileCopyrightText: 1998 Netscape Communications Corporation <developer@mozilla.org>
+
+    SPDX-License-Identifier: MIT
+*/
+
+#include "nsEUCKRProber.h"
+
+namespace kencodingprober
+{
+void nsEUCKRProber::Reset(void)
+{
+    mCodingSM->Reset();
+    mState = eDetecting;
+    mDistributionAnalyser.Reset();
+    // mContextAnalyser.Reset();
+}
+
+nsProbingState nsEUCKRProber::HandleData(const char *aBuf, unsigned int aLen)
+{
+    if (aLen == 0) {
+        return mState;
+    }
+
+    for (unsigned int i = 0; i < aLen; i++) {
+        const nsSMState codingState = mCodingSM->NextState(aBuf[i]);
+        if (codingState == eError) {
+            mState = eNotMe;
+            break;
+        }
+        if (codingState == eItsMe) {
+            mState = eFoundIt;
+            break;
+        }
+        if (codingState == eStart) {
+            unsigned int charLen = mCodingSM->GetCurrentCharLen();
+
+            if (i == 0) {
+                mLastChar[1] = aBuf[0];
+                mDistributionAnalyser.HandleOneChar(mLastChar, charLen);
+            } else {
+                mDistributionAnalyser.HandleOneChar(aBuf + i - 1, charLen);
+            }
+        }
+    }
+
+    mLastChar[0] = aBuf[aLen - 1];
+
+    if (mState == eDetecting) {
+        if (mDistributionAnalyser.GotEnoughData() && GetConfidence() > SHORTCUT_THRESHOLD) {
+            mState = eFoundIt;
+        }
+    }
+    //    else
+    //      mDistributionAnalyser.HandleData(aBuf, aLen);
+
+    return mState;
+}
+
+float nsEUCKRProber::GetConfidence(void)
+{
+    float distribCf = mDistributionAnalyser.GetConfidence();
+
+    return (float)distribCf;
+}
+}