Decouple frontend from Rails, establish pnpm workspace dev workflow

Strip the Chatwoot frontend down to a standalone Vite + Vue 3 SPA that talks
directly to the GoChat Go backend — no Ruby/Rails required.

Deleted from frontend/ (all Rails-only):
- Ruby: Gemfile, Gemfile.lock, config.ru, Capfile, Rakefile, bin/ (binstubs),
  config/ (application/boot/environment/routes/initializers/environments/locales),
  app/helpers/ (*.rb), app/views/ (ERB/jbuilder), app/assets/ (administrate scss)
- Enterprise overlay (enterprise/ — pure Ruby/jbuilder, zero JS)
- Infra: Procfile*, docker-compose*, docker/, deployment/, swagger/, .circleci/,
  .devcontainer/, .qlty/, .codegraph/, .windsurf/, .github/, .vscode/, .husky/
- Lint/config: .rubocop.yml, .scss-lint.yml, .rspec, rubocop/, .bundler-audit.yml,
  .annotaterb.yml, .all-contributorsrc, crowdin.yml, histoire.config.ts, etc.
- Stale frontend/pnpm-lock.yaml (replaced by root workspace lockfile)

Kept (frontend build essentials):
- app/javascript/ (all Vue SPA source — dashboard/widget/sdk/portal/superadmin/survey/v3)
- package.json, vite.config.ts, tailwind.config.js, postcss.config.js
- theme/, vitest.setup.js, .prettierrc

Key decoupling changes:
- vite.config.ts: removed vite-plugin-ruby, added explicit rollupOptions.input
  for all 7 entrypoints + dev-server proxy (/api,/platform,/cable,/health → GoChat)
- index.html: created static SPA entry that injects window.chatwootConfig /
  window.globalConfig (previously done by Rails ERB vueapp.html.erb)
- package.json: renamed @gochat/frontend, removed vite-plugin-ruby/histoire/husky,
  scripts now use plain vite dev/build
- tailwind.config.js: removed enterprise ERB content paths
- markdownEmbeds.js: relocated markdown_embeds.yml into app/javascript/dashboard/config/

Root pnpm workspace:
- package.json: dev:backend (air), dev:frontend (vite), dev (concurrently)
- pnpm-workspace.yaml: frontend as workspace package
- .gitignore: node_modules/, frontend/dist/, frontend build artifacts

Verified: pnpm install + vite build succeeds (4446 modules, all 7 entrypoints
produce JS+CSS chunks in dist/).

frontend/package.json

@@ -1,32 +1,27 @@
 {
-  "name": "@chatwoot/chatwoot",
-  "version": "4.14.0",
+  "name": "@gochat/frontend",
+  "version": "0.1.0",
+  "private": true,
   "license": "MIT",
   "scripts": {
+    "dev": "vite",
+    "build": "vite build",
+    "build:sdk": "BUILD_MODE=library vite build",
+    "preview": "vite preview",
     "eslint": "eslint app/**/*.{js,vue}",
     "eslint:fix": "eslint app/**/*.{js,vue} --fix",
     "test": "TZ=UTC vitest --no-watch --no-cache --no-coverage --logHeapUsage",
     "test:watch": "TZ=UTC vitest --no-cache --no-coverage",
     "test:coverage": "TZ=UTC vitest --no-watch --no-cache --coverage",
-    "start:dev": "foreman start -f ./Procfile.dev",
-    "start:test": "RAILS_ENV=test foreman start -f ./Procfile.test",
-    "dev": "overmind start -f ./Procfile.dev",
-    "ruby:prettier": "bundle exec rubocop -a",
-    "build:sdk": "BUILD_MODE=library vite build",
-    "prepare": "husky install",
-    "size": "size-limit",
-    "story:dev": "histoire dev",
-    "story:build": "histoire build",
-    "story:preview": "histoire preview",
-    "sync:i18n": "bin/sync_i18n_file_change"
+    "size": "size-limit"
   },
   "size-limit": [
     {
-      "path": "public/vite/assets/widget-*.js",
+      "path": "dist/assets/widget-*.js",
       "limit": "300 KB"
     },
     {
-      "path": "public/packs/js/sdk.js",
+      "path": "dist/sdk/js/sdk.js",
       "limit": "40 KB"
     }
   ],
@@ -114,7 +109,6 @@
   },
   "devDependencies": {
     "@egoist/tailwindcss-icons": "^1.9.2",
-    "@histoire/plugin-vue": "0.17.15",
     "@iconify-json/logos": "^1.2.10",
     "@iconify-json/lucide": "^1.2.82",
     "@iconify-json/ph": "^1.2.2",
@@ -129,35 +123,27 @@
     "eslint": "^8.57.0",
     "eslint-config-airbnb-base": "15.0.0",
     "eslint-config-prettier": "^9.1.0",
-    "eslint-interactive": "^11.1.0",
     "eslint-plugin-html": "7.1.0",
     "eslint-plugin-import": "2.30.0",
     "eslint-plugin-prettier": "5.2.1",
     "eslint-plugin-vitest-globals": "^1.5.0",
     "eslint-plugin-vue": "^9.28.0",
     "fake-indexeddb": "^6.0.0",
-    "histoire": "0.17.15",
-    "husky": "^7.0.0",
     "jsdom": "^27.2.0",
-    "lint-staged": "^16.2.7",
     "postcss": "^8.4.47",
+    "postcss-import": "^15.1.0",
     "postcss-preset-env": "^8.5.1",
     "prettier": "^3.3.3",
     "prosemirror-model": "^1.22.3",
+    "sass-embedded": "^1.100.0",
     "size-limit": "^8.2.4",
     "tailwindcss": "^3.4.19",
     "vite": "^5.4.21",
-    "vite-plugin-ruby": "^5.0.0",
     "vitest": "3.0.5"
   },
   "engines": {
-    "node": "24.x",
-    "pnpm": "10.x"
-  },
-  "husky": {
-    "hooks": {
-      "pre-push": "sh bin/validate_push"
-    }
+    "node": ">=20",
+    "pnpm": ">=10"
   },
   "pnpm": {
     "overrides": {
@@ -168,15 +154,5 @@
       "minimatch@>=9.0.0 <9.0.7": "9.0.9",
       "rollup": ">=4.59.0"
     }
-  },
-  "lint-staged": {
-    "app/**/*.{js,vue}": [
-      "eslint --fix",
-      "git add"
-    ],
-    "*.scss": [
-      "scss-lint"
-    ]
-  },
-  "packageManager": "pnpm@10.2.0+sha512.0d27364e0139c6aadeed65ada153135e0ca96c8da42123bd50047f961339dc7a758fc2e944b428f52be570d1bd3372455c1c65fa2e7aa0bfbf931190f9552001"
+  }
 }