Point repo URLs at dev.pivoine.art

Replace the placeholder GitHub URL in the scaffolded config template
with the project's real repo, and add matching Repository/repository
metadata to pyproject.toml and app/package.json.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

app/package.json

@@ -3,6 +3,11 @@
   "version": "0.1.0",
   "private": true,
   "type": "module",
+  "repository": {
+    "type": "git",
+    "url": "https://dev.pivoine.art/valknar/triggershell.git",
+    "directory": "app"
+  },
   "scripts": {
     "dev": "tsx watch server.ts",
     "build": "next build",