Add languages: English and Greek, chosen per blog on the Settings tab

Every blog and its dashboard were hard-wired to English. A blogger can
now pick the language of their blog; it switches the whole dashboard and
the blog's fixed text — post dates, archive months, the RSS link, the
pager, the 404 page — while what the blogger wrote is left alone.

The new internal/i18n package keys translations by the English string,
so an untranslated key renders as English rather than blank, and
TestGreekCatalogComplete scans the templates and handlers to fail when
the Greek catalog misses a key or keeps a stale one. Templates are
compiled once per language with t/tf/date/postdate/month closed over the
language, so they need no data plumbing.

The language lives in settings.language (blog migration 00002), not in
the theme, so "Reset design" does not touch it. Public pages use the
blog's language; management pages use the logged-in user's own blog's,
so a superadmin editing someone else's blog keeps theirs; the login page
follows Accept-Language.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Sd8UPWrvyYCLj97JexNw3A

1 files changed, 13 insertions, 13 deletions

diff --git a/internal/web/templates/dashboard/sections.html b/internal/web/templates/dashboard/sections.html
index 1834229..4d62f29 100644
--- a/internal/web/templates/dashboard/sections.html
+++ b/internal/web/templates/dashboard/sections.html
@@ -1,29 +1,29 @@
-{{define "title"}}Announcements · {{.Blog.Title}}{{end}}
+{{define "title"}}{{t "Announcements"}} · {{.Blog.Title}}{{end}}
 {{define "content"}}
 {{$u := print "/b/" .Blog.Subdomain "/announcements"}}
 <div class="pagehead">
-  <h1>Announcements</h1>
-  <div class="actions"><a class="btn" href="{{$u}}/new">+ New announcement</a></div>
-  <p class="lead muted">Notices shown on every page and post of your blog — the next meeting, this month's book, a holiday closure. Hide one instead of deleting it if you will need it again.</p>
+  <h1>{{t "Announcements"}}</h1>
+  <div class="actions"><a class="btn" href="{{$u}}/new">+ {{t "New announcement"}}</a></div>
+  <p class="lead muted">{{t "Notices shown on every page and post of your blog — the next meeting, this month's book, a holiday closure. Hide one instead of deleting it if you will need it again."}}</p>
 </div>
 <div class="card">
 {{if .Data.sections}}
 <table>
-  <tr><th>Order</th><th>Announcement</th><th>Where</th><th>Look</th><th></th></tr>
+  <tr><th>{{t "Order"}}</th><th>{{t "Announcement"}}</th><th>{{t "Where"}}</th><th>{{t "Look"}}</th><th></th></tr>
   {{range .Data.sections}}<tr{{if not .Enabled}} class="disabled"{{end}}>
     <td class="nowrap">
-      <form method="post" action="{{$u}}/{{.ID}}/move" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><input type="hidden" name="dir" value="up"><button class="mini" title="Move up">&#9650;</button></form>
-      <form method="post" action="{{$u}}/{{.ID}}/move" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><input type="hidden" name="dir" value="down"><button class="mini" title="Move down">&#9660;</button></form>
+      <form method="post" action="{{$u}}/{{.ID}}/move" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><input type="hidden" name="dir" value="up"><button class="mini" title="{{t "Move up"}}">&#9650;</button></form>
+      <form method="post" action="{{$u}}/{{.ID}}/move" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><input type="hidden" name="dir" value="down"><button class="mini" title="{{t "Move down"}}">&#9660;</button></form>
     </td>
-    <td><a href="{{$u}}/{{.ID}}/edit">{{if .Title}}{{.Title}}{{else}}(untitled){{end}}</a>{{if not .Enabled}}<span class="tag off">hidden</span>{{end}}</td>
-    <td>{{if eq .Column "main"}}Main content{{else if eq .Column "left"}}Left column{{else}}Right column{{end}}, {{.Position}}</td>
-    <td>{{if eq .Style "note"}}Highlighted{{else if eq .Style "warning"}}Warning{{else}}Plain{{end}}</td>
+    <td><a href="{{$u}}/{{.ID}}/edit">{{if .Title}}{{.Title}}{{else}}({{t "untitled"}}){{end}}</a>{{if not .Enabled}}<span class="tag off">{{t "hidden"}}</span>{{end}}</td>
+    <td>{{if eq .Column "main"}}{{t "Main content"}}{{else if eq .Column "left"}}{{t "Left column"}}{{else}}{{t "Right column"}}{{end}}, {{t .Position}}</td>
+    <td>{{if eq .Style "note"}}{{t "Highlighted"}}{{else if eq .Style "warning"}}{{t "Warning"}}{{else}}{{t "Plain"}}{{end}}</td>
     <td class="nowrap">
-      <form method="post" action="{{$u}}/{{.ID}}/toggle" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><button class="mini">{{if .Enabled}}Hide{{else}}Show{{end}}</button></form>
-      <a class="danger" href="{{$u}}/{{.ID}}/delete">delete</a>
+      <form method="post" action="{{$u}}/{{.ID}}/toggle" class="inline"><input type="hidden" name="_csrf" value="{{$.CSRF}}"><button class="mini">{{if .Enabled}}{{t "Hide"}}{{else}}{{t "Show"}}{{end}}</button></form>
+      <a class="danger" href="{{$u}}/{{.ID}}/delete">{{t "delete"}}</a>
     </td>
   </tr>{{end}}
 </table>
-{{else}}<p class="muted">No announcements yet. <a href="{{$u}}/new">Write the first one.</a></p>{{end}}
+{{else}}<p class="muted">{{t "No announcements yet."}} <a href="{{$u}}/new">{{t "Write the first one."}}</a></p>{{end}}
 </div>
 {{end}}