feat: add Playwright for end-to-end testing and update snapshots

- Introduced Playwright for E2E testing with a new configuration file.
- Added test scripts to package.json for running E2E tests.
- Updated package-lock.json and package.json with new dependencies for Playwright and types.
- Created new SVG snapshot files for various layers (ruler, scaleBar, temperature, terrain, vignette, zones) to support visual testing.
- Excluded e2e directory from TypeScript compilation.

package-lock.json

@@ -15,8 +15,10 @@
         "polylabel": "^2.0.1"
       },
       "devDependencies": {
+        "@playwright/test": "^1.57.0",
         "@types/d3": "^7.4.3",
         "@types/delaunator": "^5.0.3",
+        "@types/node": "^25.0.10",
         "@types/polylabel": "^1.1.3",
         "@vitest/browser": "^4.0.18",
         "@vitest/browser-playwright": "^4.0.18",
@@ -478,6 +480,22 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@playwright/test": {
+      "version": "1.57.0",
+      "resolved": "https://registry.npmjs.org/@playwright/test/-/test-1.57.0.tgz",
+      "integrity": "sha512-6TyEnHgd6SArQO8UO2OMTxshln3QMWBtPGrOCgs3wVEmQmwyuNtB10IZMfmYDE0riwNR1cu4q+pPcxMVtaG3TA==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "dependencies": {
+        "playwright": "1.57.0"
+      },
+      "bin": {
+        "playwright": "cli.js"
+      },
+      "engines": {
+        "node": ">=18"
+      }
+    },
     "node_modules/@polka/url": {
       "version": "1.0.0-next.29",
       "resolved": "https://registry.npmjs.org/@polka/url/-/url-1.0.0-next.29.tgz",
@@ -1165,6 +1183,17 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/@types/node": {
+      "version": "25.0.10",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.0.10.tgz",
+      "integrity": "sha512-zWW5KPngR/yvakJgGOmZ5vTBemDoSqF3AcV/LrO5u5wTWyEAVVh+IT39G4gtyAkh3CtTZs8aX/yRM82OfzHJRg==",
+      "dev": true,
+      "license": "MIT",
+      "peer": true,
+      "dependencies": {
+        "undici-types": "~7.16.0"
+      }
+    },
     "node_modules/@types/polylabel": {
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/@types/polylabel/-/polylabel-1.1.3.tgz",
@@ -1997,6 +2026,7 @@
       "integrity": "sha512-ilYQj1s8sr2ppEJ2YVadYBN0Mb3mdo9J0wQ+UuDhzYqURwSoW4n1Xs5vs7ORwgDGmyEh33tRMeS8KhdkMoLXQw==",
       "dev": true,
       "license": "Apache-2.0",
+      "peer": true,
       "dependencies": {
         "playwright-core": "1.57.0"
       },
@@ -2269,6 +2299,13 @@
         "node": ">=14.17"
       }
     },
+    "node_modules/undici-types": {
+      "version": "7.16.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
+      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/vite": {
       "version": "7.3.1",
       "resolved": "https://registry.npmjs.org/vite/-/vite-7.3.1.tgz",