Initial Tdarr-tray: KDE systray applet for the Tdarr workstation node

PyQt6 QSystemTrayIcon: green=running, red=stopped, yellow=transition.
Pause/resume the node via the API (frees/reclaims the GPU, no sudo) so you
can free the 4060 Ti before gaming. Playbook standard: README (per-OS
prereqs + build/run/test), doc/plan.md, .gitignore (build/ first), VS Code
build task -> ./build, install.sh + one-line curl (clone or release),
Gitea Actions rolling-latest release.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_011YPrEZVBpPVoCRyJz2exkZ

.vscode/tasks.json

@@ -0,0 +1,40 @@
+{
+  "version": "2.0.0",
+  "tasks": [
+    {
+      "label": "build",
+      "detail": "Bygger en körbar tdarr-tray till ./build/",
+      "type": "shell",
+      "command": "mkdir -p build && install -m 0755 tdarr-tray.py build/tdarr-tray && echo '-> build/tdarr-tray'",
+      "group": { "kind": "build", "isDefault": true },
+      "problemMatcher": []
+    },
+    {
+      "label": "Installera + autostart",
+      "type": "shell",
+      "command": "./install.sh",
+      "options": { "cwd": "${workspaceFolder}" },
+      "problemMatcher": []
+    },
+    {
+      "label": "Kör (förgrund)",
+      "type": "shell",
+      "command": "python3 tdarr-tray.py",
+      "isBackground": true,
+      "problemMatcher": []
+    },
+    {
+      "label": "Status (--check)",
+      "type": "shell",
+      "command": "python3 tdarr-tray.py --check",
+      "group": "test",
+      "problemMatcher": []
+    },
+    {
+      "label": "Stoppa tray",
+      "type": "shell",
+      "command": "pkill -f tdarr-tray && echo stoppad || echo 'ingen instans'",
+      "problemMatcher": []
+    }
+  ]
+}