Add application and autostart settings

tests/quickshell/applications-settings-contract.sh

@@ -0,0 +1,52 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+fail() {
+    printf 'applications settings contract: %s\n' "$1" >&2
+    exit 1
+}
+
+project_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
+page="$project_root/config/dot/quickshell/modules/settings/ApplicationsPage.qml"
+
+[[ -f "$page" ]] || fail 'Applications page is missing'
+
+assert_contains() {
+    rg -F --quiet "$1" "$page" || fail "page is missing: $1"
+}
+
+assert_contains 'SettingsPage {'
+assert_contains 'objectName: "applications"'
+assert_contains 'DesktopEntries.applications.values'
+assert_contains 'DefaultApps'
+assert_contains 'SettingsCard {'
+assert_contains 'SettingRow {'
+assert_contains 'activatable:'
+assert_contains 'ActionRow {'
+assert_contains 'TextRow {'
+
+for label in Browser Mail Files Terminal Music Images Video; do
+    assert_contains "label: \"$label\""
+done
+
+assert_contains 'title: "Default applications"'
+assert_contains 'title: "User autostart"'
+assert_contains 'title: "Compositor autostart"'
+assert_contains 'categories'
+assert_contains 'genericName'
+assert_contains '.sort('
+assert_contains 'currentEntry'
+assert_contains 'read-only'
+
+if rg --quiet 'Component\.onCompleted|DesktopEntries\.(byId|heuristicLookup)' "$page"; then
+    fail 'page snapshots or performs a one-time desktop-entry lookup'
+fi
+if rg --quiet '#[0-9A-Fa-f]{3,8}' "$page"; then
+    fail 'page introduces a color literal instead of the shared visual system'
+fi
+
+[[ "$(rg --count 'activatable:' "$page")" -ge 2 ]] \
+    || fail 'default and autostart rows are not both whole-row activatable'
+
+printf 'applications settings contract: PASS\n'