Merge branch 'chore/playwright-visual-deps'

`.agents/scripts/visual-regression.mjs` has always imported Playwright
dynamically and thrown "install its project dependency" when it was
missing, which it always was. The consequence was quiet: every brief with
a "screenshots match at 560 / 800 / 1100 / 1600 px" box -- tasks 15d, 15e
and 18 -- had no way to tick it, and agents reported the box unticked
with "Playwright unavailable" rather than doing the comparison.

The browsers were already cached in ~/.cache/ms-playwright; only the node
package was absent. Verified a headless screenshot works after install.

pnpm-lock.yaml changes here as a side effect of `pnpm add -D`, never by
hand. No package-lock.json, yarn.lock or bun.lock.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

package.json

@@ -24,6 +24,7 @@
     "eslint-plugin-astro": "^1",
     "husky": "^9",
     "lint-staged": "^16",
+    "playwright": "^1.62.1",
     "prettier": "^3",
     "prettier-plugin-astro": "^0.14",
     "stylelint": "^16",

pnpm-lock.yaml

@@ -37,6 +37,9 @@ importers:
       lint-staged:
         specifier: ^16
         version: 16.4.0
+      playwright:
+        specifier: ^1.62.1
+        version: 1.62.1
       prettier:
         specifier: ^3
         version: 3.9.6
@@ -1306,6 +1309,11 @@ packages:
     resolution: {integrity: sha512-9UbaD6XdAL97+k/n+N7JwX46K/M6Zc6KcFYskrYL8wbBV/Uyk0CTAMY0VT+qiK5PM7AIc9aTWYtq65U7T+aCNQ==}
     engines: {node: '>=8'}
 
+  fsevents@2.3.2:
+    resolution: {integrity: sha512-xiqMQR4xAeHTuB9uWm+fFRcIOgKBMiOBP+eXiyT7jsgVCq1bkVygt00oASowB7EdtpOHaaPgKt812P9ab+DDKA==}
+    engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
+    os: [darwin]
+
   fsevents@2.3.3:
     resolution: {integrity: sha512-5xoDfX+fL7faATnagmWPpbFtwh/R77WmMMqqHGS65C3vvB0YHrgF+B1YmZ3441tMj5n63k0212XNoJwzlhffQw==}
     engines: {node: ^8.16.0 || ^10.6.0 || >=11.0.0}
@@ -1856,6 +1864,16 @@ packages:
     resolution: {integrity: sha512-qcJu88Q2IWqJsDD529JKMdwGm/dvInW4HvQnRwiH9JtihJvzGOscDtHE3x1pBKeUOTysQ8kVmLnJ2kJu7yhcGA==}
     engines: {node: '>=12'}
 
+  playwright-core@1.62.1:
+    resolution: {integrity: sha512-wPYSwEBJY9GHraISXqyqtx0na0LpO3XEX7jNDhntbex7tzUS7kLnZsOlFruFJB4Hi/rhDMjXGqHewDZ68nYZVw==}
+    engines: {node: '>=20'}
+    hasBin: true
+
+  playwright@1.62.1:
+    resolution: {integrity: sha512-0M+L3LAD8/nm554LOla9Ayx0j0tmFZ0FBcoQ7F1VuVHpM/XpiC8RcDzBQB8W5+hA8L22THxELzeF+2WcUzvcLg==}
+    engines: {node: '>=20'}
+    hasBin: true
+
   postcss-resolve-nested-selector@0.1.6:
     resolution: {integrity: sha512-0sglIs9Wmkzbr8lQwEyIzlDOOC9bGmfVKcJTaxv3vMmd3uo4o4DerC3En0bnmgceeql9BfC8hRkp7cg0fjdVqw==}
 
@@ -3844,6 +3862,9 @@ snapshots:
 
   flattie@1.1.1: {}
 
+  fsevents@2.3.2:
+    optional: true
+
   fsevents@2.3.3:
     optional: true
 
@@ -4592,6 +4613,14 @@ snapshots:
 
   picomatch@4.0.7: {}
 
+  playwright-core@1.62.1: {}
+
+  playwright@1.62.1:
+    dependencies:
+      playwright-core: 1.62.1
+    optionalDependencies:
+      fsevents: 2.3.2
+
   postcss-resolve-nested-selector@0.1.6: {}
 
   postcss-safe-parser@7.0.1(postcss@8.5.28):