initialize Electron desktop app and remove unused files

.gitignore

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+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+node_modules
+dist
+# Build backups made by hand or by deploy tooling (dist.first-turn-old/, dist.bak/ …)
+dist.*/
+playwright-report
+test-results
+dist-ssr
+coverage
+__pycache__/
+*.py[cod]
+server/dist
+packages/server/dist
+*.local
+ROADMAP.md
+pnpm-lock.yaml
+pnpm-workspace.yaml
+# Local design prototypes and reference snapshots (read-only, not part of this project)
+reference_code/
+
+# Server data
+packages/server/data/
+packages/server/node_modules/
+.hermes-web-ui/
+packages/*/.pio/
+packages/*/*/.pio/
+
+# Hermes config files (should be in user data directory, not project root)
+config.yaml
+.env
+hermes_data/
+hermes-dependencies.md
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+.superpowers/
+CLAUDE.md
+# Client source map artifacts
+packages/client/src/**/*.js
+.hermes/
+
+# Electron installers and isolated smoke-test data
+release/
+.tmp/