Split the page shell out of the repository layout

layout.eta was two things at once: the HTML shell every page needs and
the repository chrome around it. owner.eta, being the one page that is
not about a repository, could use neither and carried its own copy of
the shell, which had drifted -- its footer named no build commit and
did not link to the original page on GitHub.

The shell moves to views/layouts/base.eta, taking its title and any
deferred scripts as layout data, and the chrome to views/layouts/repo.eta,
a layout over it that adds the clone commands, nav, search box, and the
"/" shortcut that focuses it. Repository pages point at repo.eta and
render as before; owner.eta uses base.eta directly and so gains the
footer it was missing.

Templates now live in more than one directory, so scripts/build.ts walks
views/ recursively and keys each template by its path underneath it.
Names crossing a directory are written from the views root
("/layouts/base.eta"), the one form both Eta's filesystem resolver and
the precompiled resolver in worker.ts agree on; siblings stay relative.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Ba5p88cWtCq42vf3uweweL

1 files changed, 17 insertions, 0 deletions

diff --git a/views/layouts/base.eta b/views/layouts/base.eta
new file mode 100644
index 0000000..fb644f5
--- /dev/null
+++ b/views/layouts/base.eta
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title><%= it.title %></title>
+  <link rel="stylesheet" href="/static/style.css">
+  <% for (const src of it.scripts ?? []) { %>
+    <script src="<%= src %>" defer></script>
+  <% } %>
+</head>
+<body>
+  <%~ it.body %>
+
+  <footer>Generated by cgithub commit <code><%= it.buildCommit %></code> · <a href="<%= it.githubUrl %>" rel="noreferrer">View original</a></footer>
+</body>
+</html>