feat: Add API handlers for site posts CRUD, implement authentication, and introduce comments handling.

Author: zerox80

backend/src/auth.rs

@@ -301,7 +301,7 @@ pub fn build_auth_cookie(token: &str) -> Cookie<'static> {
         .path("/")
         .http_only(true)
         .same_site(SameSite::Lax)
-        .max_age(TimeDuration::seconds(AUTH_COOKIE_TTL_SECONDS));
+        .max_age(Duration::seconds(AUTH_COOKIE_TTL_SECONDS));
 
     // Add Secure flag in production (HTTPS only)
     if cookies_should_be_secure() {
@@ -331,7 +331,7 @@ pub fn build_cookie_removal() -> Cookie<'static> {
         .http_only(true)
         .same_site(SameSite::Lax)
         .expires(OffsetDateTime::UNIX_EPOCH)
-        .max_age(TimeDuration::seconds(0));
+        .max_age(Duration::seconds(0));
 
     // Match security settings of auth cookie
     if cookies_should_be_secure() {

backend/src/handlers/comments.rs

@@ -398,7 +398,7 @@ pub async fn vote_comment(
             )
         })?;
 
-    if exists.is_none() {
+    if !exists {
         return Err((
             StatusCode::NOT_FOUND,
             Json(ErrorResponse {
@@ -471,5 +471,17 @@ pub async fn vote_comment(
             )
         })?;
 
-    Ok(Json(comment))
+    // Convert models::Comment to handlers::comments::Comment
+    let response_comment = Comment {
+        id: comment.id,
+        tutorial_id: comment.tutorial_id,
+        post_id: comment.post_id,
+        author: comment.author,
+        content: comment.content,
+        created_at: comment.created_at,
+        votes: comment.votes,
+        is_admin: comment.is_admin,
+    };
+
+    Ok(Json(response_comment))
 }

backend/src/handlers/site_posts.rs

@@ -169,7 +169,7 @@ pub async fn list_posts_for_page(
 ) -> Result<Json<SitePostListResponse>, (StatusCode, Json<ErrorResponse>)> {
     ensure_admin(&claims)?;
 
-    db::get_site_page_by_id(&pool, &page_id)
+    repositories::pages::get_site_page_by_id(&pool, &page_id)
         .await
         .map_err(|err| map_sqlx_error(err, "Site page"))?
         .ok_or_else(|| {