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/scriptsPg/1.8.0.ts

@@ -0,0 +1,31 @@
+import { db } from "@server/db/pg";
+
+export default async function migrate() {
+  try {
+    console.log("Starting webauthnChallenge table creation...");
+    
+    // Create the table (PostgreSQL already has the correct table name)
+    await db.execute(`
+      CREATE TABLE IF NOT EXISTS webauthnChallenge (
+          sessionId TEXT PRIMARY KEY,
+          challenge TEXT NOT NULL,
+          securityKeyName TEXT,
+          userId TEXT,
+          expiresAt INTEGER NOT NULL,
+          FOREIGN KEY (userId) REFERENCES user(id) ON DELETE CASCADE
+      );
+    `);
+    
+    // Create the index
+    await db.execute(`
+      CREATE INDEX IF NOT EXISTS idx_webauthnChallenge_expiresAt ON webauthnChallenge(expiresAt);
+    `);
+    
+    console.log("Successfully created webauthnChallenge table and index");
+    return true;
+  } catch (error: any) {
+    console.error("Unable to create webauthnChallenge table:", error);
+    console.error("Error details:", error.message);
+    return false;
+  }
+}