* create pkg 'modules/template'
* move template rendering code from 'handlers' to 'modules/template'
* update call sites
* walk the 'templates' dir to discover nested hierarchies
* solidify LiveMode handling (vs embedded assets)
* break out funcMap to it's own file
* general clean-up
* let the settings struct be the single source of truth
* rm app fields that are covered by settings
* pass around a pointer to settings instead of config
* consolidate config+flags into settings on start-up
* update tests
* rm empty settings.go file
fixes#4
* add Email field to User entity (+codegen)
* switch to Echo contrib sessions backed by Gorilla sessions
* use SessionCookieSecret value from the config
* stage mod,sum changes
* add clearer signup/signin redirect logic
* render error pages on 500/404s and only fall back to returning raw
errors when the error is some unexpected kind
* add username/email "exists" funcs+tests - handle "not found" and "not
unique" errors, return errors otherwise
* add handlers for signin,singup,logout...
* introduce ent ORM and add user schema
* add live mode, devel mode to selectively turn on features via
config/flags
* add templates, handle embedding moar smarter:
* live mode uses live folder structure, else embedded templates are
used
* start using tailwindcss to style stuff
* add development goodies for hot-reloading (browser-sync - bs.js)
* pimp-up config.dhall with actual custom config Type (enables remote
schema and local values only as needed)
* add justfile (alternative to makefile for process automation)
