fix: resolve build errors and improve database migration system

- Remove unused SQLite migration script 1.8.1.ts that was causing
  TypeScript compilation errors during PostgreSQL builds
- Fix verifyTotp.ts type error by adding proper null check for password
  parameter before passing to verifyPassword function
- Fix SQLite migration script 1.7.0.ts syntax errors in transaction
  structure and error handling
**- Update SQLite migration system to not drop tables by default, as this was used during testing and should not be in production.**

Fixes build failures for both "make build" (SQLite) and "make build-pg"
(PostgreSQL) Docker image builds.

server/setup/scriptsSqlite/1.7.0.ts

@@ -17,12 +17,17 @@ export default async function migration() {
             db.exec(`
                 ALTER TABLE orgs ADD COLUMN passwordResetTokenExpiryHours INTEGER NOT NULL DEFAULT 1;
             `);
-        })(); // <-- executes the transaction immediately
+        })(); // executes the transaction immediately
         db.pragma("foreign_keys = ON");
         console.log(`Added passwordResetTokenExpiryHours column to orgs table`);
     } catch (e) {
         console.log("Error adding passwordResetTokenExpiryHours column to orgs table:");
         console.log(e);
+    }
+
+    try {
+        db.pragma("foreign_keys = OFF");
+        db.transaction(() => {
             db.exec(`
                 CREATE TABLE IF NOT EXISTS securityKey (
                     credentialId TEXT PRIMARY KEY,