chore: cleanups and refactorings for cleaner code

crates/bds-core/src/engine/meta.rs

@@ -164,75 +164,6 @@ pub fn remove_category(data_dir: &Path, category: &str) -> EngineResult<()> {
     Ok(())
 }
 
-// ── update helpers ──────────────────────────────────────────────────
-
-/// Update the blog_languages list in project.json.
-/// Per metadata.allium UpdateProjectMetadata: writes ProjectJsonWritten.
-pub fn update_blog_languages(data_dir: &Path, languages: Vec<String>) -> EngineResult<()> {
-    let mut meta = read_project_json(data_dir)?;
-    meta.blog_languages = languages;
-    write_project_json(data_dir, &meta)?;
-    Ok(())
-}
-
-/// Update arbitrary fields of project metadata.
-/// Per metadata.allium UpdateProjectMetadata rule.
-pub fn update_project_metadata(data_dir: &Path, changes: &serde_json::Value) -> EngineResult<()> {
-    let mut meta = read_project_json(data_dir)?;
-    if let Some(name) = changes.get("name").and_then(|v| v.as_str()) {
-        meta.name = name.to_string();
-    }
-    if let Some(desc) = changes.get("description") {
-        meta.description = desc.as_str().map(|s| s.to_string());
-    }
-    if let Some(url) = changes.get("publicUrl") {
-        meta.public_url = url.as_str().map(|s| s.to_string());
-    }
-    if let Some(lang) = changes.get("mainLanguage") {
-        meta.main_language = lang.as_str().map(|s| s.to_string());
-    }
-    if let Some(author) = changes.get("defaultAuthor") {
-        meta.default_author = author.as_str().map(|s| s.to_string());
-    }
-    if let Some(max) = changes.get("maxPostsPerPage").and_then(|v| v.as_i64()) {
-        meta.max_posts_per_page = max as i32;
-    }
-    if let Some(concurrency) = changes.get("imageImportConcurrency") {
-        meta.image_import_concurrency = concurrency
-            .as_i64()
-            .map(|value| value as i32)
-            .or_else(|| {
-                concurrency
-                    .as_str()
-                    .and_then(|value| value.parse::<i32>().ok())
-            })
-            .unwrap_or(4)
-            .clamp(1, 8);
-    }
-    if let Some(cat) = changes.get("blogmarkCategory") {
-        meta.blogmark_category = cat.as_str().map(|s| s.to_string());
-    }
-    if let Some(theme) = changes.get("picoTheme") {
-        meta.pico_theme = theme.as_str().map(|s| s.to_string());
-    }
-    if let Some(enabled) = changes
-        .get("semanticSimilarityEnabled")
-        .and_then(|v| v.as_bool())
-    {
-        meta.semantic_similarity_enabled = enabled;
-    }
-    if let Some(langs) = changes.get("blogLanguages").and_then(|v| v.as_array()) {
-        meta.blog_languages = langs
-            .iter()
-            .filter_map(|v| v.as_str().map(|s| s.to_string()))
-            .collect();
-    }
-    meta.validate()
-        .map_err(crate::engine::EngineError::Validation)?;
-    write_project_json(data_dir, &meta)?;
-    Ok(())
-}
-
 // ── startup sync ────────────────────────────────────────────────────
 
 /// Per metadata.allium StartupSync: loads metadata from filesystem, creating