Qt6 Migration: Complete migration with DDS/RTI support and build validation

Major Changes:
- Merged latest Qt5 devel content from dlbo (292 files changed, 7 new dirs)
- Consolidated forward-declarations and include folders
- Removed unneeded modules per Niklas' repo check list

Build System Fixes:
- Fixed CMake VERSION_GREATER syntax in ParticipantManagement/CMakeLists.txt
- Added VLC packages (libvlc-dev, vlc-plugin-base) to docker_build.sh
- Added PostgreSQL dev packages (libpq-dev, postgresql-server-dev-all) to Dockerfile
- Fixed locale warnings (ANSI_X3.4-1968 → C.UTF-8)
- Fixed ArcGIS SDK path warnings when BUILD_ARCGIS=OFF

Code Generation Fixes:
- Fixed IDL enum collisions (PortType→CorePortType/DdsutPortType, PdmEventType)
- Fixed Grantlee template svc_translation.cpp.grantlee:
  - Changed {{ idl_enum.name }}_def:: to {{ idl_enum.name }}::
  - Fixed .underlying() calls for C++11 scoped enums (enum class)
- Removed generated files from repo (moc_*, *_dtc.h, *_ftc.h)

Validation:
- BUILD_RTI=ON: SUCCESS
- BUILD_RTI=OFF: SUCCESS
- C++17 standard maintained for RTI 7.7 compatibility
- Ubuntu 26.04 Docker environment verified

Remaining Warnings (expected):
- BgViewer, KDChart, KDReports, Poppler-Qt6 not found (optional features)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

qt5-before/dlbo/Lts/Tools/ParticipantPositionGeneratorHTML/mobile/css/index.css

@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+* {
+    -webkit-tap-highlight-color: rgba(0,0,0,0); /* make transparent link selection, adjust last value opacity 0 to 1.0 */
+}
+
+body {
+    -webkit-touch-callout: none;                /* prevent callout to copy image, etc when tap to hold */
+    -webkit-text-size-adjust: none;             /* prevent webkit from resizing text to fit */
+    -webkit-user-select: none;                  /* prevent copy paste, to allow, change 'none' to 'text' */
+    background-color:#E4E4E4;
+    background-image:linear-gradient(top, #A7A7A7 0%, #E4E4E4 51%);
+    background-image:-webkit-linear-gradient(top, #A7A7A7 0%, #E4E4E4 51%);
+    background-image:-ms-linear-gradient(top, #A7A7A7 0%, #E4E4E4 51%);
+    background-image:-webkit-gradient(
+        linear,
+        left top,
+        left bottom,
+        color-stop(0, #A7A7A7),
+        color-stop(0.51, #E4E4E4)
+    );
+    background-attachment:fixed;
+    font-family:'HelveticaNeue-Light', 'HelveticaNeue', Helvetica, Arial, sans-serif;
+    font-size:12px;
+    height:100%;
+    margin:0px;
+    padding:0px;
+    text-transform:uppercase;
+    width:100%;
+}
+
+/* Portrait layout (default) */
+.app {
+    background:url(../img/logo.png) no-repeat center top; /* 170px x 200px */
+    position:absolute;             /* position in the center of the screen */
+    left:50%;
+    top:50%;
+    height:50px;                   /* text area height */
+    width:225px;                   /* text area width */
+    text-align:center;
+    padding:180px 0px 0px 0px;     /* image height is 200px (bottom 20px are overlapped with text) */
+    margin:-115px 0px 0px -112px;  /* offset vertical: half of image height and text area height */
+                                   /* offset horizontal: half of text area width */
+}
+
+/* Landscape layout (with min-width) */
+@media screen and (min-aspect-ratio: 1/1) and (min-width:400px) {
+    .app {
+        background-position:left center;
+        padding:75px 0px 75px 170px;  /* padding-top + padding-bottom + text area = image height */
+        margin:-90px 0px 0px -198px;  /* offset vertical: half of image height */
+                                      /* offset horizontal: half of image width and text area width */
+    }
+}
+
+h1 {
+    font-size:24px;
+    font-weight:normal;
+    margin:0px;
+    overflow:visible;
+    padding:0px;
+    text-align:center;
+}
+
+.event {
+    border-radius:4px;
+    -webkit-border-radius:4px;
+    color:#FFFFFF;
+    font-size:12px;
+    margin:0px 30px;
+    padding:2px 0px;
+}
+
+.event.listening {
+    background-color:#333333;
+    display:block;
+}
+
+.event.received {
+    background-color:#4B946A;
+    display:none;
+}
+
+@keyframes fade {
+    from { opacity: 1.0; }
+    50% { opacity: 0.4; }
+    to { opacity: 1.0; }
+}
+ 
+@-webkit-keyframes fade {
+    from { opacity: 1.0; }
+    50% { opacity: 0.4; }
+    to { opacity: 1.0; }
+}
+ 
+.blink {
+    animation:fade 3000ms infinite;
+    -webkit-animation:fade 3000ms infinite;
+}