chore: establish V1.1 recovery baseline

.gitignore

@@ -0,0 +1,55 @@
+# Dependencies
+node_modules/
+backend/local-maven/
+backend/build-temp/
+__pycache__/
+*.py[cod]
+*.lock
+package-lock.json
+yarn.lock
+pnpm-lock.yaml
+
+# Build outputs
+backend/target/
+admin-web/dist/
+miniapp/dist/
+miniapp/unpackage/
+
+# IDE
+.idea/
+.vscode/
+*.iml
+*.iws
+*.ipr
+.DS_Store
+
+# Environment variables with secrets
+backend/src/main/resources/application-dev.yml
+*.env
+!.env.example
+
+# Logs
+*.log
+logs/
+
+# Test data
+.pytest_cache/
+tests/fixtures/*.csv
+tests/fixtures/*.json
+
+# Local workspace and developer settings
+.worktrees/
+.zcode/
+project.private.config.json
+/nul
+/infrastructure/nul
+
+# OS files
+Thumbs.db
+.DS_Store
+
+# Secrets and certificates
+docker-compose.prod.yml
+infrastructure/secrets/
+infrastructure/certs/
+infrastructure/backups/