feat: implement user profile management with avatars, login, and personal data

- Add avatar upload functionality with public URL access.
- Implement user login with email and password authentication.
- Create endpoints for fetching and updating the authenticated user's profile.
- Set up database migrations for user profiles, including email and role management.
- Introduce personal data management linked to user profiles.
- Add email verification process with welcome email templates.

registration/migrations/1_create_welcome_tokens.up.sql

@@ -0,0 +1,11 @@
+CREATE TABLE welcome_tokens (
+    token UUID PRIMARY KEY,
+    user_id UUID NOT NULL,
+    email TEXT NOT NULL,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at TIMESTAMPTZ NOT NULL,
+    used_at TIMESTAMPTZ
+);
+
+CREATE INDEX welcome_tokens_user_id_idx ON welcome_tokens (user_id);
+CREATE INDEX welcome_tokens_email_idx ON welcome_tokens (email);