architecture: css and html embedded in rust string literals #6

problem #

all css and html templates are embedded as rust string literals in src/templates.rs.

current approach:

pub fn login_page() -> &'static str {
    r#"
<!DOCTYPE html>
<html>
<head>
    <style>
        /* ~300 lines of css */
    </style>
</head>
...
    "#
}

issues #

1. no syntax highlighting #

writing css/html in rust strings = no proper editor support

2. css duplication #

• similar styles duplicated between login_page() and app_page()
• css variables defined separately in each template
• ~700 lines of css total in rust strings

3. template maintenance #

• hard to edit/preview html
• rust compilation required for any frontend change
• can't use standard html/css tooling

4. no separation of concerns #

• presentation logic mixed with backend code
• harder to onboard frontend contributors

affected files #

• src/templates.rs (~990 lines, mostly css/html)

notes #

this is somewhat intentional (simple deployment, no build step), but creates maintenance overhead as app grows.