Add single release detail pages and refactor templates

Refactored releases display into reusable partial template (_release.eta) and added support for viewing individual releases at /:owner/:repo/releases/tag/:tag with navigation back to all releases.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/cgithub/static/style.css b/cgithub/static/style.css
index fdf3285..896f138 100644
--- a/cgithub/static/style.css
+++ b/cgithub/static/style.css
@@ -232,6 +232,10 @@ pre.box {
   font-size: 0.8rem;
 }
 
+.release-nav {
+  margin-bottom: 1rem;
+}
+
 .release {
   margin-bottom: 2rem;
 }