Footer: put Verso/AGPL attribution in the rendered thin-footer

The login (and other CE) pages render layout/thin-footer, not
fat-footer-website-redesign, because showThinFooter = !hasFeature('saas')
is true in Community Edition. The earlier footer edit therefore never
showed. Replace the static "© 2025 Built on Overleaf" line with the
Verso attribution (© <year> Aloïs Coquillard · Built on Overleaf) and
add an AGPL licence + source-code link group on the right, keeping the
language picker and custom nav items intact.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

services/web/app/views/layout/thin-footer.pug

@@ -4,16 +4,20 @@ footer.site-footer
 	.site-footer-content.hidden-print
 		.row
 			ul.site-footer-items.col-lg-9
-				if !settings.nav.hide_powered_by
-					li
-						//- year of Server Pro release, static
-						| © 2025
-						|
-						a(href='https://github.com/overleaf/overleaf') Built on Overleaf
+				li
+					| © #{new Date().getFullYear()}
+					|
+					a(href='https://alocoq.fr' target='_blank' rel='noopener noreferrer') Aloïs Coquillard
+				li
+					strong.text-muted |
+				li
+					| Built on
+					|
+					a(href='https://github.com/overleaf/overleaf' target='_blank' rel='noopener noreferrer') Overleaf
 
-					if showLanguagePicker || hasCustomLeftNav
-						li
-							strong.text-muted |
+				if showLanguagePicker || hasCustomLeftNav
+					li
+						strong.text-muted |
 
 				if showLanguagePicker
 					include language-picker
@@ -30,6 +34,13 @@ footer.site-footer
 							| !{item.text}
 
 			ul.site-footer-items.col-lg-3.text-end
+				li
+					a(href='https://git.alocoq.fr/alois/verso/src/branch/main/LICENSE' target='_blank' rel='noopener noreferrer') AGPL licence
+				li
+					strong.text-muted |
+				li
+					a(href='https://git.alocoq.fr/alois/verso' target='_blank' rel='noopener noreferrer') Source code
+
 				each item in nav.right_footer
 					li
 						if item.url