refactor(workspace): split workspace interface and implementation (#5463)

@affine/workspace -> (@affine/workspace, @affine/workspace-impl)

packages/frontend/workspace-impl/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "@affine/workspace-impl",
+  "private": true,
+  "main": "./src/index.ts",
+  "exports": {
+    ".": "./src/index.ts"
+  },
+  "peerDependencies": {
+    "@blocksuite/blocks": "*",
+    "@blocksuite/global": "*",
+    "@blocksuite/store": "*"
+  },
+  "dependencies": {
+    "@affine/debug": "workspace:*",
+    "@affine/electron-api": "workspace:*",
+    "@affine/env": "workspace:*",
+    "@affine/graphql": "workspace:*",
+    "@affine/workspace": "workspace:*",
+    "@toeverything/infra": "workspace:*",
+    "idb": "^8.0.0",
+    "idb-keyval": "^6.2.1",
+    "is-svg": "^5.0.0",
+    "lodash-es": "^4.17.21",
+    "nanoid": "^5.0.3",
+    "next-auth": "^4.24.5",
+    "socket.io-client": "^4.7.2",
+    "y-protocols": "^1.0.6",
+    "yjs": "^13.6.10"
+  },
+  "devDependencies": {
+    "fake-indexeddb": "^5.0.0",
+    "vitest": "1.1.1",
+    "ws": "^8.14.2"
+  },
+  "version": "0.11.0"
+}