Add script for importing match schedule and logging

- Created `import-spielplan.js` to fetch and parse the match schedule from the specified URL, saving the output as JSON.
- Added `run-spielplan-import.sh` to automate the execution of the import script and log output.
- Introduced `spielplan.html` file to store the downloaded HTML content for further processing.

package.json

@@ -1,6 +1,6 @@
 {
   "name": "harheimertc-website",
-  "version": "1.3.0",
+  "version": "1.4.0",
   "description": "Moderne Webseite für den Harheimer Tischtennis Club",
   "private": true,
   "type": "module",
@@ -19,6 +19,8 @@
     "check-security": "node scripts/verify-no-public-writes.js",
     "smoke-local": "BASE_URL=http://127.0.0.1:3100 node scripts/smoke-tests.js",
     "sync-public-data": "node scripts/sync-public-data.js",
+    "import-spielplan": "node scripts/import-spielplan.js",
+    "publish-spielplan": "node scripts/publish-imported-spielplan.js",
     "test:watch": "vitest watch",
     "lint": "eslint . --fix"
   },