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.

profiles/migrations/3_add_auth.up.sql

@@ -0,0 +1,10 @@
+ALTER TABLE user_profiles ADD COLUMN password_hash TEXT NOT NULL DEFAULT '';
+
+CREATE TABLE sessions (
+    token UUID PRIMARY KEY,
+    user_id UUID NOT NULL REFERENCES user_profiles(user_id) ON DELETE CASCADE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at TIMESTAMPTZ NOT NULL
+);
+
+CREATE INDEX sessions_user_id_idx ON sessions (user_id);