Refactor dependencies to devDependencies in package.json

Moved several libraries including @anthropic-ai/sdk and @babel-related packages from dependencies to devDependencies in package.json and bun.lock. This reduces the production bundle size by excluding unnecessary build-time dependencies.

package.json

@@ -16,27 +16,16 @@
     "tail:analytics-service": "wrangler tail -c workers/analytics/wrangler-analytics.toml",
     "tail:session-proxy": "wrangler tail -c workers/session-proxy/wrangler-session-proxy.toml --env production"
   },
-  "dependencies": {
+  "devDependencies": {
     "@anthropic-ai/sdk": "^0.32.1",
-    "@babel/plugin-proposal-class-properties": "^7.18.6",
-    "@babel/plugin-syntax-dynamic-import": "^7.8.3",
-    "@babel/plugin-transform-react-jsx": "^7.25.9",
-    "@babel/plugin-transform-runtime": "^7.25.9",
-    "@babel/preset-env": "^7.26.0",
-    "@babel/preset-react": "^7.26.3",
-    "@babel/preset-typescript": "^7.26.0",
-    "@babel/runtime": "^7.26.9",
     "@chakra-ui/react": "^2.10.6",
     "@cloudflare/workers-types": "^4.20241205.0",
     "@emotion/react": "^11.13.5",
     "@emotion/styled": "^11.13.5",
-    "@mdxeditor/editor": "^3.20.0",
     "@types/marked": "^6.0.0",
     "@vitejs/plugin-react": "^4.3.4",
     "chokidar": "^4.0.1",
     "framer-motion": "^11.13.1",
-    "gpt-tokenizer": "^2.7.0",
-    "hastscript": "^9.0.0",
     "isomorphic-dompurify": "^2.19.0",
     "itty-router": "^5.0.18",
     "js-cookie": "^3.0.5",
@@ -58,7 +47,6 @@
     "react-streaming": "^0.3.44",
     "react-textarea-autosize": "^8.5.5",
     "shiki": "^1.24.0",
-    "terser": "^5.39.0",
     "typescript": "^5.7.2",
     "vike": "0.4.193",
     "vite": "^5.4.11",