Add init/run scripts and Cursor/VSCode configurations

- Add init.sh: initializes app with Docker, creates prod backup, restores to local DB
- Add run.sh: restarts all containers
- Update restore-db.sh: auto-selects latest dump, terminates active connections before restore
- Add .cursor/commands.json: Cursor commands (init, run, backupFromProd, restoreToLocal)
- Add .vscode/tasks.json: VSCode tasks for running scripts
- Add .vscode/launch.json: launch configurations for restarting server
- Remove play-life-backend/env.example (unified .env in root)

.vscode/launch.json

@@ -0,0 +1,28 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Restart Server",
+      "type": "node",
+      "request": "launch",
+      "runtimeExecutable": "bash",
+      "runtimeArgs": ["${workspaceFolder}/run.sh"],
+      "cwd": "${workspaceFolder}",
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    },
+    {
+      "name": "Init Server",
+      "type": "node",
+      "request": "launch",
+      "runtimeExecutable": "bash",
+      "runtimeArgs": ["${workspaceFolder}/init.sh"],
+      "cwd": "${workspaceFolder}",
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "skipFiles": ["<node_internals>/**"]
+    }
+  ]
+}
+