[Feat]: Source code integration

client/.env.development

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+REACT_APP_BACKEND_V2_GET_URL=https://json-dev.excalidraw.com/api/v2/
+REACT_APP_BACKEND_V2_POST_URL=https://json-dev.excalidraw.com/api/v2/post/
+
+REACT_APP_LIBRARY_URL=https://libraries.excalidraw.com
+REACT_APP_LIBRARY_BACKEND=https://us-central1-excalidraw-room-persistence.cloudfunctions.net/libraries
+
+# collaboration WebSocket server (https://github.com/excalidraw/excalidraw-room)
+REACT_APP_WS_SERVER_URL=http://localhost:3002
+
+# set this only if using the collaboration workflow we use on excalidraw.com
+REACT_APP_PORTAL_URL=
+
+REACT_APP_FIREBASE_CONFIG='{"apiKey":"AIzaSyCMkxA60XIW8KbqMYL7edC4qT5l4qHX2h8","authDomain":"excalidraw-oss-dev.firebaseapp.com","projectId":"excalidraw-oss-dev","storageBucket":"excalidraw-oss-dev.appspot.com","messagingSenderId":"664559512677","appId":"1:664559512677:web:a385181f2928d328a7aa8c"}'
+
+# put these in your .env.local, or make sure you don't commit!
+# must be lowercase `true` when turned on
+#
+# whether to enable Service Workers in development
+REACT_APP_DEV_ENABLE_SW=
+# whether to disable live reload / HMR. Usuaully what you want to do when
+# debugging Service Workers.
+REACT_APP_DEV_DISABLE_LIVE_RELOAD=
+
+FAST_REFRESH=false
+
+# MATOMO
+REACT_APP_MATOMO_URL=
+REACT_APP_CDN_MATOMO_TRACKER_URL=
+REACT_APP_MATOMO_SITE_ID=
+
+#Debug flags
+
+# To enable bounding box for text containers
+REACT_APP_DEBUG_ENABLE_TEXT_CONTAINER_BOUNDING_BOX=

client/.env.production

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+REACT_APP_BACKEND_V2_GET_URL=https://json.excalidraw.com/api/v2/
+REACT_APP_BACKEND_V2_POST_URL=https://json.excalidraw.com/api/v2/post/
+
+REACT_APP_LIBRARY_URL=https://libraries.excalidraw.com
+REACT_APP_LIBRARY_BACKEND=https://us-central1-excalidraw-room-persistence.cloudfunctions.net/libraries
+
+REACT_APP_PORTAL_URL=https://portal.excalidraw.com
+# Fill to set socket server URL used for collaboration.
+# Meant for forks only: excalidraw.com uses custom REACT_APP_PORTAL_URL flow
+REACT_APP_WS_SERVER_URL=
+
+REACT_APP_FIREBASE_CONFIG='{"apiKey":"AIzaSyAd15pYlMci_xIp9ko6wkEsDzAAA0Dn0RU","authDomain":"excalidraw-room-persistence.firebaseapp.com","databaseURL":"https://excalidraw-room-persistence.firebaseio.com","projectId":"excalidraw-room-persistence","storageBucket":"excalidraw-room-persistence.appspot.com","messagingSenderId":"654800341332","appId":"1:654800341332:web:4a692de832b55bd57ce0c1"}'
+
+# production-only vars
+# GOOGLE ANALYTICS
+REACT_APP_GOOGLE_ANALYTICS_ID=UA-387204-13
+# MATOMO
+REACT_APP_MATOMO_URL=https://excalidraw.matomo.cloud/
+REACT_APP_CDN_MATOMO_TRACKER_URL=//cdn.matomo.cloud/excalidraw.matomo.cloud/matomo.js
+REACT_APP_MATOMO_SITE_ID=1
+
+
+
+REACT_APP_PLUS_APP=https://app.excalidraw.com

client/excalidraw-package.json

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+{
+  "browserslist": {
+    "production": [
+      ">0.2%",
+      "not dead",
+      "not ie <= 11",
+      "not op_mini all",
+      "not safari < 12",
+      "not kaios <= 2.5",
+      "not edge < 79",
+      "not chrome < 70",
+      "not and_uc < 13",
+      "not samsung < 10"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  },
+  "dependencies": {
+    "@dwelle/tunnel-rat": "0.1.1",
+    "@sentry/browser": "6.2.5",
+    "@sentry/integrations": "6.2.5",
+    "@testing-library/jest-dom": "5.16.2",
+    "@testing-library/react": "12.1.5",
+    "@tldraw/vec": "1.7.1",
+    "browser-fs-access": "0.29.1",
+    "clsx": "1.1.1",
+    "cross-env": "7.0.3",
+    "fake-indexeddb": "3.1.7",
+    "firebase": "8.3.3",
+    "i18next-browser-languagedetector": "6.1.4",
+    "idb-keyval": "6.0.3",
+    "image-blob-reduce": "3.0.1",
+    "jotai": "1.6.4",
+    "lodash.throttle": "4.1.1",
+    "nanoid": "3.3.3",
+    "open-color": "1.9.1",
+    "pako": "1.0.11",
+    "perfect-freehand": "1.2.0",
+    "pica": "7.1.1",
+    "png-chunk-text": "1.0.0",
+    "png-chunks-encode": "1.0.0",
+    "png-chunks-extract": "1.0.0",
+    "points-on-curve": "0.2.0",
+    "pwacompat": "2.0.17",
+    "react": "18.2.0",
+    "react-dom": "18.2.0",
+    "react-scripts": "5.0.1",
+    "roughjs": "4.5.2",
+    "sass": "1.51.0",
+    "socket.io-client": "2.3.1",
+    "tunnel-rat": "0.1.0",
+    "workbox-background-sync": "^6.5.4",
+    "workbox-broadcast-update": "^6.5.4",
+    "workbox-cacheable-response": "^6.5.4",
+    "workbox-core": "^6.5.4",
+    "workbox-expiration": "^6.5.4",
+    "workbox-google-analytics": "^6.5.4",
+    "workbox-navigation-preload": "^6.5.4",
+    "workbox-precaching": "^6.5.4",
+    "workbox-range-requests": "^6.5.4",
+    "workbox-routing": "^6.5.4",
+    "workbox-strategies": "^6.5.4",
+    "workbox-streams": "^6.5.4"
+  },
+  "devDependencies": {
+    "@excalidraw/eslint-config": "1.0.0",
+    "@excalidraw/prettier-config": "1.0.2",
+    "@types/chai": "4.3.0",
+    "@types/jest": "27.4.0",
+    "@types/lodash.throttle": "4.1.7",
+    "@types/pako": "1.0.3",
+    "@types/pica": "5.1.3",
+    "@types/react": "18.0.15",
+    "@types/react-dom": "18.0.6",
+    "@types/resize-observer-browser": "0.1.7",
+    "@types/socket.io-client": "1.4.36",
+    "chai": "4.3.6",
+    "dotenv": "16.0.1",
+    "eslint-config-prettier": "8.5.0",
+    "eslint-plugin-prettier": "3.3.1",
+    "http-server": "14.1.1",
+    "husky": "7.0.4",
+    "jest-canvas-mock": "2.4.0",
+    "lint-staged": "12.3.7",
+    "pepjs": "0.5.3",
+    "prettier": "2.6.2",
+    "rewire": "6.0.0",
+    "typescript": "4.9.4"
+  },
+  "engines": {
+    "node": ">=14.0.0"
+  },
+  "homepage": ".",
+  "jest": {
+    "transformIgnorePatterns": [
+      "node_modules/(?!(roughjs|points-on-curve|path-data-parser|points-on-path|browser-fs-access)/)"
+    ],
+    "resetMocks": false
+  },
+  "name": "excalidraw",
+  "prettier": "@excalidraw/prettier-config",
+  "private": true,
+  "scripts": {
+    "build-node": "node ./scripts/build-node.js",
+    "build:app:docker": "cross-env REACT_APP_DISABLE_SENTRY=true REACT_APP_DISABLE_TRACKING=true react-scripts build",
+    "build:app": "cross-env REACT_APP_GIT_SHA=$VERCEL_GIT_COMMIT_SHA react-scripts build",
+    "build:version": "node ./scripts/build-version.js",
+    "build": "yarn build:app && yarn build:version",
+    "eject": "react-scripts eject",
+    "fix:code": "yarn test:code --fix",
+    "fix:other": "yarn prettier --write",
+    "fix": "yarn fix:other && yarn fix:code",
+    "locales-coverage": "node scripts/build-locales-coverage.js",
+    "locales-coverage:description": "node scripts/locales-coverage-description.js",
+    "prepare": "husky install",
+    "prettier": "prettier \"**/*.{css,scss,json,md,html,yml}\" --ignore-path=.eslintignore",
+    "start": "react-scripts start",
+    "start:production": "npm run build && npx http-server build -a localhost -p 5001 -o",
+    "test:all": "yarn test:typecheck && yarn test:code && yarn test:other && yarn test:app --watchAll=false",
+    "test:app": "react-scripts test --passWithNoTests",
+    "test:code": "eslint --max-warnings=0 --ext .js,.ts,.tsx .",
+    "test:debug": "react-scripts --inspect-brk test --runInBand --no-cache",
+    "test:other": "yarn prettier --list-different",
+    "test:typecheck": "tsc",
+    "test:update": "yarn test:app --updateSnapshot --watchAll=false",
+    "test": "yarn test:app",
+    "autorelease": "node scripts/autorelease.js",
+    "prerelease": "node scripts/prerelease.js",
+    "release": "node scripts/release.js"
+  }
+}