Serve the superadmin's blog on the root domain

The base domain (and www.) now serves a regular blog owned by the first
superadmin, created automatically on startup, alongside the management
routes. Literal management paths take precedence over the blog's page
wildcards, and the slugs they would shadow are reserved.

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

1 files changed, 13 insertions, 6 deletions

diff --git a/internal/web/routes.go b/internal/web/routes.go
index c889aa1..02d536a 100644
--- a/internal/web/routes.go
+++ b/internal/web/routes.go
@@ -9,7 +9,6 @@ func urlQuery(s string) string { return url.QueryEscape(s) }
 
 func (s *Server) rootRoutes() http.Handler {
 	m := http.NewServeMux()
-	m.HandleFunc("GET /{$}", s.handleIndex)
 	m.HandleFunc("GET /healthz", func(w http.ResponseWriter, r *http.Request) { w.Write([]byte("ok")) })
 	m.HandleFunc("GET /login", s.handleLoginForm)
 	m.HandleFunc("POST /login", s.handleLogin)
@@ -56,17 +55,25 @@ func (s *Server) rootRoutes() http.Handler {
 
 	m.HandleFunc("GET /media/{id}", s.handleMedia)
 	m.Handle("GET /static/{file}", s.staticHandler())
+	// The root domain also serves the superadmin's blog. Literal routes above win
+	// over these wildcards; see reservedPageSlugs for the names that are shadowed.
+	s.blogRoutes(m, s.hostBlog)
 	return s.session(m)
 }
 
-func (s *Server) blogRoutes() http.Handler {
+// blogRoutes registers the public blog pages; wrap resolves the blog into the request context.
+func (s *Server) blogRoutes(m *http.ServeMux, wrap func(http.HandlerFunc) http.HandlerFunc) {
+	m.HandleFunc("GET /{$}", wrap(s.handleBlogHome))
+	m.HandleFunc("GET /feed.xml", wrap(s.handleBlogFeed))
+	m.HandleFunc("GET /{page}", wrap(s.handleBlogPage))
+	m.HandleFunc("GET /{page}/{post}", wrap(s.handleBlogPost))
+}
+
+func (s *Server) subdomainRoutes() http.Handler {
 	m := http.NewServeMux()
-	m.HandleFunc("GET /{$}", s.handleBlogHome)
-	m.HandleFunc("GET /feed.xml", s.handleBlogFeed)
 	m.HandleFunc("GET /media/{id}", s.handleMedia)
 	m.Handle("GET /static/{file}", s.staticHandler())
-	m.HandleFunc("GET /{page}", s.handleBlogPage)
-	m.HandleFunc("GET /{page}/{post}", s.handleBlogPost)
+	s.blogRoutes(m, s.hostBlog)
 	return m
 }