feat: mock exercise template api (#613)

* feat: move mock exercise template to api

* feat: add template migration file

* chore:
- remove exercise templates form api
- rework api to pull exercise templates from db
- add exercise template seed to seed file
- declutter seed file

* chore:
- refactor template fetch to be dependent on the selected tag
- add tag to schema, remote db and template's seed file
- clear remote db's template table and replace data and their respective tags

* chore: add number of questions and center loading screen on the frontend

* chore: pr fixes

* chore: type fixes

* chore:
- move seed functionality to /seed folder
- add typing for individual seed functions
- pr fixes

* chore: pr fixes v2

* update output css

* refactor: update seeding script and schema definitions

- Renamed `seedTypes` to `seedQuestionTypes` for clarity in the seeding process.
- Enhanced the seeding script to include a command-line interface for better usability, allowing specific seed functions to be executed based on flags.
- Removed redundant unique constraints in the schema definitions for `courseNewsfeedComment` and `exerciseTemplate` to streamline database structure.

* feat: add email verification error handling page and update session management

- Introduced a new page for handling email verification errors, providing user-friendly messages based on error types.
- Updated session management logic to improve handling of public routes and session states.
- Enhanced security policies in the Svelte configuration to include additional sources for styles and scripts.
- Removed the old email verification error page to streamline the codebase.

* move the exercise template to cloudflare cdn

---------

Co-authored-by: Rotimi Best <best@classroomio.com>

packages/db/src/utils/seed/users.ts

@@ -0,0 +1,27 @@
+import { db, user } from '@db/drizzle';
+import { TUser } from '@db/types';
+
+export async function seedUsers({ usersData }: { usersData: TUser[] }) {
+  const existingUsers = await db.select().from(user);
+  const existingUserIds = existingUsers.map((u) => u.id);
+
+  const usersToInsert = usersData
+    .map((userData) => ({
+      id: userData.id,
+      name: userData.name,
+      email: userData.email,
+      emailVerified: userData.emailVerified,
+      image: null,
+      role: null,
+      banned: false,
+      isAnonymous: false
+    }))
+    .filter((u) => !existingUserIds.includes(u.id));
+
+  if (usersToInsert.length > 0) {
+    await db.insert(user).values(usersToInsert);
+    console.log(`   ✓ Inserted ${usersToInsert.length} user(s)`);
+  } else {
+    console.log('   ✓ Users already exist, skipping');
+  }
+}