Add email html

[Whyle]

No description provided.

[Copilot]

Pull Request Overview

Adds HTML-formatted emails with inline CSS to the user registration and password reset flows.

• Switched email subtype to HTML in the email service
• Introduced an inline style constant and replaced plain-text bodies with full HTML templates in register_user and reset_password

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
app/service/email_service.py	Changed email subtype from plain to HTML
app/routes/user.py	Added inline CSS and HTML email bodies for registration and reset

Comments suppressed due to low confidence (3)

app/service/email_service.py:34

• The switch to HTML emails isn't covered by existing tests. Add or update tests to verify that emails are sent with the HTML subtype and render correctly.

subject=subject, recipients=to, body=body, subtype=MessageType.html #or MessageType.plain

app/routes/user.py:26

• [nitpick] The variable name style is very generic and could conflict with other CSS or templating code. Consider renaming to something more specific, like EMAIL_CSS_STYLE.

style = """<style>

app/routes/user.py:26

• [nitpick] The multiline style string includes indentation that will be part of the output. Use a dedent helper (e.g., textwrap.dedent) or adjust the literal to avoid unexpected whitespace in the email.

style = """<style>

[Copilot]

[nitpick] The HTML bodies for registration and reset are nearly identical apart from some text. Consider extracting a shared template or helper function to avoid duplication.

[Whyle]