fix(client): declare browser-only externals as devDependencies

react, react-dom, shiki, katex, clsx, the micromark and mdast families and nine
more reach only browser artifacts, which resolve nothing on a user's machine.
Moving 79 declarations out of dependencies and non-optional peerDependencies
drops 103 tarballs and 6.05 MB from an install of the published CLI.

packages/client/ui-primitives/package.json

@@ -26,7 +26,11 @@
     "./package.json": "./package.json"
   },
   "license": "MIT",
-  "dependencies": {
+  "devDependencies": {
+    "@deepseek-ai/dsh-invariants": "workspace:^",
+    "@types/react": "~18.3.1",
+    "@types/react-dom": "~18.3.0",
+    "@deepseek-ai/cordis": "workspace:^",
     "@shikijs/langs": "^4.3.1",
     "@types/mdast": "^4.0.4",
     "anser": "^2.3.5",
@@ -48,12 +52,6 @@
     "react-dom": "^18.2.0",
     "shiki": "^4.3.1"
   },
-  "devDependencies": {
-    "@deepseek-ai/dsh-invariants": "workspace:^",
-    "@types/react": "~18.3.1",
-    "@types/react-dom": "~18.3.0",
-    "@deepseek-ai/cordis": "workspace:^"
-  },
   "files": [
     "lib/index.js",
     "lib/invariant.js",