Also embeds /assets, /migrations, and views/ directories in Go binary to
make deployment simpler.

Users can change their newsletter subscription status in the settings
view.

automatically prompts for a new card if past payments were
unsuccessful. Does not actually disable API access.

'access' is already used by grav to set permissions for admin routes and
internal accounts. 'skouter' should be used instead.

Grav will be used to route and display all frontend pages instead of Go
to make pages easily modifiable and consistent with blogging CMS.

nav_loop is seperated into three different loops for general routes,
guests, and authenticated users which will be called 'members'.

A seperate header is used instead of relying only on current cookie
because the current cookie is difficult to modify before being
forwarded, and would make removing invalid cookies in responses
complicated.

It's easier and less complex than writing a Grav plugin to make backend
requests each time a page is loaded.

Generate verification tokens and sendout SMTP relay from endpoint.
Authentication values rely on environment variables. The new trial
subscription endpoint copies the existing one but adds the trial days
parameter.

Creating separate endpoints for each webhook simplifies value checking for
event.Type and HookKeys while being easy to test for errors.

Empty branch IDs and missing payment information caused network errors
and a missing billing component.

Includes the associated Go functions for inserting and selecting given a
specific user ID or subscription ID. Also adds required HTML tags and
HTTP queries for subscription process during user registration.

To make requests to Go API endpoints for registration from a PHP page,
there needs to be local routing between the two servers. This method
avoids needing Apache installed seperately for development builds while
allowing it to still be used in production if necessary.

Secures the user registration endpoint.

At most one result should exist for each loan stored but not redeclaring
the 'estimate' variable within the seed loop caused the loan entries of
the first estimate to be copied onto the second, which caused an error
while seeding result entries.

Also seperate stages of seeding into other functions.