feat: add posts per page setting to site settings

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

services/sites/services.go

@@ -129,10 +129,11 @@ func (s *Service) ListAllSitesWithOwners(ctx context.Context) ([]db.SiteWithOwne
 }
 
 type UpdateSiteSettingsParams struct {
-	SiteID   int64  `form:"siteID"`
-	Name     string `form:"name"`
-	Tagline  string `form:"tagline"`
-	Timezone string `form:"timezone"`
+	SiteID       int64  `form:"siteID"`
+	Name         string `form:"name"`
+	Tagline      string `form:"tagline"`
+	Timezone     string `form:"timezone"`
+	PostsPerPage int    `form:"postsPerPage"`
 }
 
 func (s *Service) UpdateSiteSettings(ctx context.Context, params UpdateSiteSettingsParams) (models.Site, error) {
@@ -146,9 +147,17 @@ func (s *Service) UpdateSiteSettings(ctx context.Context, params UpdateSiteSetti
 		return models.Site{}, errors.Wrap(err, "invalid timezone")
 	}
 
+	postsPerPage := params.PostsPerPage
+	if postsPerPage < 1 {
+		postsPerPage = 1
+	} else if postsPerPage > 100 {
+		postsPerPage = 100
+	}
+
 	site.Title = params.Name
 	site.Tagline = params.Tagline
 	site.Timezone = params.Timezone
+	site.PostsPerPage = postsPerPage
 
 	if err := s.db.SaveSite(ctx, &site); err != nil {
 		return models.Site{}, err

views/sitesettings/general.html

@@ -41,6 +41,13 @@
           </datalist>
         </div>
       </div>
+      <div class="row mb-3">
+        <label for="postsPerPage" class="col-sm-3 col-form-label text-end">Posts Per Page</label>
+        <div class="col-sm-3">
+          <input type="number" class="form-control" id="postsPerPage" name="postsPerPage" value="{{ .site.PostsPerPage }}" min="1" max="100">
+          <div class="form-text">Number of posts per page on the generated site.</div>
+        </div>
+      </div>
       <div class="row mb-3">
         <div class="col-sm-3"></div>
         <div class="col-sm-9"><button type="submit" class="btn btn-primary">Save Settings</button></div>