fix(flatpak): move runtime to KDE 6.10 (freedesktop 25.08)

Restore the Flatpak manifest to the repo and target org.kde.Platform
6.10 instead of the EOL 6.6/23.08 stack reported in issue #5.

Add a maintainer build script and a CI job that verifies the manifest
builds against the current KDE SDK.

.github/workflows/build.yml

@@ -40,3 +40,21 @@ jobs:
               ctest --test-dir build --output-on-failure
               "$(/usr/lib/qt6/bin/qtpaths6 --query QT_INSTALL_BINS)/qmllint" src/qml/Main.qml src/qml/components/*.qml src/qml/theme/BearTheme.qml
             '
+
+  flatpak-build:
+    runs-on: ubuntu-24.04
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Build Flatpak manifest
+        run: |
+          set -euo pipefail
+          sudo apt-get update
+          sudo apt-get install -y flatpak flatpak-builder
+          flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo
+          flatpak install --user -y flathub org.kde.Sdk//6.10 org.kde.Platform//6.10
+          flatpak-builder --user --force-clean flatpak_build de.nerdbear.bearwave.json
+          grep -q '"runtime-version" : "6.10"' flatpak_build/files/manifest.json
+          test "$(grep '^runtime=' flatpak_build/metadata)" = "runtime=org.kde.Platform/x86_64/6.10"

de.nerdbear.bearwave.json

@@ -0,0 +1,34 @@
+{
+    "app-id": "de.nerdbear.bearwave",
+    "runtime": "org.kde.Platform",
+    "runtime-version": "6.10",
+    "sdk": "org.kde.Sdk",
+    "command": "bearwave",
+    "finish-args": [
+        "--share=network",
+        "--socket=wayland",
+        "--socket=fallback-x11",
+        "--socket=pulseaudio",
+        "--own-name=org.mpris.MediaPlayer2.bearwave",
+        "--talk-name=org.freedesktop.Notifications",
+        "--talk-name=org.kde.StatusNotifierWatcher",
+        "--share=ipc"
+    ],
+    "modules": [
+        {
+            "name": "bearwave",
+            "buildsystem": "cmake-ninja",
+            "builddir": true,
+            "config-opts": [
+                "-DCMAKE_BUILD_TYPE=Release",
+                "-DBEARWAVE_BUILD_TESTS=OFF"
+            ],
+            "sources": [
+                {
+                    "type": "dir",
+                    "path": "."
+                }
+            ]
+        }
+    ]
+}

scripts/build-flatpak.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$root"
+
+flatpak-builder --repo=flatpak_repo --force-clean flatpak_build de.nerdbear.bearwave.json
+flatpak build-update-repo flatpak_repo
+
+echo "Flatpak repo updated in flatpak_repo/. Deploy it to flatpak.bearwave.app."