feat: add scripts for database inspection and migration

- Implemented multiple scripts to check and inspect meal plans, scraped data, and accommodations for Munich and Riga.
- Added a migration script to convert scraped data into the application's database format.
- Introduced new database service methods for querying and updating travel rates.
- Enhanced server configuration for serving static files in production.
- Updated PostCSS configuration for consistency.

scripts/updateRiga.js

@@ -0,0 +1,41 @@
+const db = require("../services/databaseService");
+
+async function updateRigaRate() {
+  await db.connect();
+
+  return new Promise((resolve, reject) => {
+    db.db.run(
+      `
+      UPDATE travel_rates 
+      SET jan_accommodation = 209,
+          feb_accommodation = 209,
+          mar_accommodation = 209,
+          apr_accommodation = 209,
+          may_accommodation = 209,
+          jun_accommodation = 209,
+          jul_accommodation = 209,
+          aug_accommodation = 209,
+          sep_accommodation = 209,
+          oct_accommodation = 209,
+          nov_accommodation = 209,
+          dec_accommodation = 209,
+          standard_accommodation = 209,
+          currency = 'CAD'
+      WHERE LOWER(city_name) = 'riga'
+    `,
+      [],
+      (err) => {
+        if (err) {
+          console.error("❌ Error:", err);
+          reject(err);
+        } else {
+          console.log("✅ Riga accommodation updated to CAD $209");
+          resolve();
+        }
+        db.close();
+      }
+    );
+  });
+}
+
+updateRigaRate().catch(console.error);