[chore]: move integration libs into peer deps (#2101)

# why
- pnpm installs optional deps by default, which meant installing
`stagehand` would also pull in `playwright-core`, `patchright-core`, &
`puppeteer-core`
- these packages should be supplied by the consumer **_only if_** they
want to use `stagehand` with an existing browser automation framework.
they are otherwise not required
- moving them into peer dependencies prevents unnecessary installs, &
reflects a more accurate dependency graph

# what changed
- moved `playwright-core`, `patchright-core`, & `puppeteer-core` in
`packages/core` from optional deps to optional peer deps


<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Moved `playwright-core`, `patchright-core`, and `puppeteer-core` to
optional peer dependencies in `@browserbasehq/stagehand` to stop
automatic installs and let consumers opt in only if needed. Also aligned
`playwright` version ranges across packages.

- **Dependencies**
- In `packages/core`: moved `playwright-core`, `patchright-core`,
`puppeteer-core` from optional deps to optional peer deps (all marked
optional).
- Updated internal dev deps to keep tests working: `playwright`,
`playwright-core`, `puppeteer-core`, `patchright-core`.
- Aligned `playwright` ranges: `packages/evals` uses `>=1.55.1 <1.57.0`;
`packages/server-v3` and `packages/server-v4` use `^1.55.1`.

- **Migration**
  - If you use Stagehand with Playwright, add `playwright-core@^1.55.1`.
  - If you use Puppeteer, add `puppeteer-core@^24.43.0`.
  - If you use Patchright, add `patchright-core@^1.55.2`.

<sup>Written for commit dc726fc.
Summary will update on new commits.</sup>

<!-- End of auto-generated description by cubic. -->

Author: seanmcguire12

.changeset/public-tables-act.md

@@ -0,0 +1,5 @@
+---
+"@browserbasehq/stagehand": patch
+---
+
+move playwright-core, puppeteer-core, patchright-core from optional dependencies to peer dependencies

packages/core/package.json

@@ -60,8 +60,22 @@
   "license": "MIT",
   "peerDependencies": {
     "deepmerge": "^4.3.1",
+    "patchright-core": "^1.55.2",
+    "playwright-core": "^1.55.1",
+    "puppeteer-core": "^24.43.0",
     "zod": "^3.25.76 || ^4.2.0"
   },
+  "peerDependenciesMeta": {
+    "patchright-core": {
+      "optional": true
+    },
+    "playwright-core": {
+      "optional": true
+    },
+    "puppeteer-core": {
+      "optional": true
+    }
+  },
   "dependencies": {
     "@ai-sdk/provider": "^2.0.0",
     "@anthropic-ai/sdk": "0.39.0",
@@ -96,14 +110,10 @@
     "@langchain/core": "^0.3.80",
     "bufferutil": "^4.0.9",
     "chrome-launcher": "^1.2.0",
-    "ollama-ai-provider-v2": "^1.5.0",
-    "patchright-core": "^1.55.2",
-    "playwright": "^1.59.1",
-    "playwright-core": "^1.59.1",
-    "puppeteer-core": "^24.43.0"
+    "ollama-ai-provider-v2": "^1.5.0"
   },
   "devDependencies": {
-    "@playwright/test": "^1.59.1",
+    "@playwright/test": "^1.55.1",
     "@types/adm-zip": "^0.5.7",
     "@types/jsdom": "^27.0.0",
     "@types/node": "^20.11.30",
@@ -113,9 +123,11 @@
     "chalk": "^5.4.1",
     "eslint": "10.0.2",
     "jsdom": "^29.1.1",
-    "playwright": "^1.52.0",
-    "playwright-core": "^1.54.1",
+    "patchright-core": "^1.55.2",
+    "playwright": "^1.55.1",
+    "playwright-core": "^1.55.1",
     "prettier": "^3.2.5",
+    "puppeteer-core": "^24.43.0",
     "tsx": "*",
     "vitest": "^4.0.8",
     "zod": "^3.25.76 || ^4.2.0"

packages/evals/package.json

@@ -29,7 +29,7 @@
     "ai": "^5.0.133",
     "dotenv": "^17.3.1",
     "openai": "^4.104.0",
-    "playwright": "^1.55.1",
+    "playwright": ">=1.55.1 <1.57.0",
     "sharp": "^0.34.5",
     "tsx": "*",
     "zod": "^4.2.1"

packages/server-v3/package.json

@@ -35,7 +35,7 @@
     "http-status-codes": "^2.3.0",
     "pino": "^9.7.0",
     "pino-pretty": "^11.3.0",
-    "playwright": "1.55.1",
+    "playwright": "^1.55.1",
     "uuid": "^11.0.5",
     "zod": "^4.2.1"
   },

packages/server-v4/package.json

@@ -41,7 +41,7 @@
     "http-status-codes": "^2.3.0",
     "pino": "^9.7.0",
     "pino-pretty": "^11.3.0",
-    "playwright": "1.55.1",
+    "playwright": "^1.55.1",
     "postgres": "^3.4.8",
     "uuid": "^11.0.5",
     "zod": "^4.2.1"