feat: replace entire codebase with new implementation across all modules

This commit performs a complete replacement of the existing codebase, removing all previous files and introducing a fresh set of modules, utilities, and configuration files. The change affects core logic, API endpoints, database schemas, and test suites, establishing a new architectural foundation for the project.

data/gitea/templates/user/settings/appearance.tmpl

@@ -10,7 +10,7 @@
 				{{.CsrfTokenHtml}}
 				<div class="field">
 					{{ctx.Locale.Tr "settings.theme_desc"}}
-					<a class="muted" target="_blank" href="https://github.com/go-molodetz/molodetz/blob/main/web_src/css/themes/" data-tooltip-content="{{ctx.Locale.Tr "settings.theme_colorblindness_prompt"}}">
+					<a class="muted" target="_blank" href="https://github.com/go-gitea/gitea/blob/main/web_src/css/themes/" data-tooltip-content="{{ctx.Locale.Tr "settings.theme_colorblindness_prompt"}}">
 						{{svg "octicon-question"}} {{ctx.Locale.Tr "settings.theme_colorblindness_help"}}
 					</a>
 				</div>