v0.1.2: Preferences page, About page, full icon set, redesigned edit form

- Rework the add/edit form onto a generic, catalog-driven field model
  (JobFieldCatalog + JobEditModel), replacing the old hand-written
  ApplicationEditDialog with ApplicationEditPage
- Add a Preferences page (reachable from the hamburger menu) with a
  KColorSchemeManager-backed color scheme switcher
- Add an About page reading from KAboutData
- Ship a full hicolor icon set (16-128px + scalable) via ecm_install_icons
  instead of a single flat SVG
- Restyle the edit form after KDE System Settings' Audio page:
  Kirigami.ListSectionHeader per category, flat separated rows, no card
  borders
- Explicitly declare Kirigami/KirigamiAddons/ColorScheme as CMake
  dependencies instead of relying on the QML import scanner alone
- Add KDEClangFormat/KDEGitCommitHooks, a CMakePresets.json, and a
  REUSE + clang-format lint CI workflow
- Reformat SPDX headers to include copyright, remove debug screenshot
  scaffolding

src/qml/Main.qml

@@ -1,8 +1,14 @@
-// SPDX-License-Identifier: GPL-3.0-or-later
+/*
+    SPDX-FileCopyrightText: 2026 ToServeTheKing <[email protected]>
+
+    SPDX-License-Identifier: GPL-3.0-or-later
+*/
+
 pragma ComponentBehavior: Bound
 
 import QtQuick
 import org.kde.kirigami as Kirigami
+import org.kde.kirigamiaddons.formcard as FormCard
 import io.github.toservetheking.Kareer
 
 Kirigami.ApplicationWindow {
@@ -19,22 +25,73 @@ Kirigami.ApplicationWindow {
         id: jobsModel
     }
 
-    ApplicationEditDialog {
-        id: editDialog
-        jobsModel: jobsModel
-    }
+    // The job currently open in the edit form, so the sidebar can keep it highlighted.
+    property int currentJobId: -1
 
-    pageStack.defaultColumnWidth: Kirigami.Units.gridUnit * 22
+    pageStack.defaultColumnWidth: Kirigami.Units.gridUnit * 16
     pageStack.globalToolBar.style: Kirigami.ApplicationHeaderStyle.ToolBar
 
-    // Two static columns (applications + dashboard) - no dynamic page pushing.
+    globalDrawer: Kirigami.GlobalDrawer {
+        isMenu: true
+        actions: [
+            Kirigami.Action {
+                text: i18nc("@action:inmenu", "Preferences…")
+                icon.name: "configure"
+                onTriggered: root.pageStack.pushDialogLayer(settingsPageComponent, {
+                    width: root.width
+                }, {
+                    width: Kirigami.Units.gridUnit * 24,
+                    height: Kirigami.Units.gridUnit * 20,
+                    modality: Qt.NonModal
+                })
+            },
+            Kirigami.Action {
+                text: i18nc("@action:inmenu", "About %1", root.title)
+                icon.name: "help-about"
+                onTriggered: root.pageStack.pushDialogLayer(aboutPageComponent, {
+                    width: root.width
+                }, {
+                    width: Kirigami.Units.gridUnit * 30,
+                    height: Kirigami.Units.gridUnit * 30,
+                    modality: Qt.NonModal
+                })
+            }
+        ]
+    }
+
+    Component {
+        id: aboutPageComponent
+        FormCard.AboutPage {}
+    }
+
+    Component {
+        id: settingsPageComponent
+        SettingsPage {}
+    }
+
+    // Two static columns: the applications list (sidebar) and the dashboard.
+    // "Add Application" (and clicking a row) replaces just the dashboard
+    // column with the edit form - the sidebar and its list are untouched.
     pageStack.initialPage: [applicationsComponent, dashboardComponent]
 
+    function showDashboard(): void {
+        root.currentJobId = -1;
+        root.pageStack.currentIndex = 1;
+        root.pageStack.replace(dashboardComponent);
+    }
+
+    function showEditPage(jobId: int): void {
+        root.currentJobId = jobId;
+        root.pageStack.currentIndex = 1;
+        root.pageStack.replace(editPageComponent, {editingJobId: jobId});
+    }
+
     Component {
         id: applicationsComponent
         ApplicationsPage {
             jobsModel: jobsModel
-            editDialog: editDialog
+            currentJobId: root.currentJobId
+            onEditRequested: jobId => root.showEditPage(jobId)
         }
     }
 
@@ -42,6 +99,15 @@ Kirigami.ApplicationWindow {
         id: dashboardComponent
         DashboardPage {
             jobsModel: jobsModel
+            onAddRequested: root.showEditPage(-1)
+        }
+    }
+
+    Component {
+        id: editPageComponent
+        ApplicationEditPage {
+            jobsModel: jobsModel
+            onDone: root.showDashboard()
         }
     }
 }