fix(komik): keep api.komiku.org for lists, source genre-list from komiku.org root

Blanket-switching the whole komik module to komiku.org broke the manga
list: komiku.org/manga/?tipe=manga 301-redirects to /pustaka/ (the new
library layout, 0 .bge items), while api.komiku.org/manga/?tipe=manga
serves the .bge grid the parser expects unredirected.

Correct split:
- api_url() = api.komiku.org  -> manga/manhua/manhwa/genre/search lists (.bge layout)
- genre_list fetches base_url() = komiku.org  root, which is POPULATED
  (#Genre .ls3 .ls3p h4 + /genre/<slug>/ links) — api.komiku.org root is empty

Reverts the api_url() half of a46adf1; keeps the underlying insight that
the genre-list needs the populated komiku.org root.

src/application/komik/use_cases.rs

@@ -49,7 +49,7 @@ impl KomikUseCases {
             .get_or_set("komik:genres:list:v3", GENRE_LIST_CACHE_TTL, || async {
                 let html = self
                     .repository
-                    .fetch_html(&self.repository.api_url())
+                    .fetch_html(&self.repository.base_url())
                     .await
                     .map_err(|e| e.to_string())?;
                 let genres = tokio::task::spawn_blocking(move || parser::parse_genres(&html))

src/infrastructure/scraping/scraping_urls.rs

@@ -21,13 +21,14 @@ pub fn get_production_url() -> String {
 
 /// Get Komik API URL from environment config.
 ///
-/// Defaults to `https://komiku.org` (NOT the legacy `api.komiku.org`): the
-/// `api.komiku.org` root returns an empty body (site-side), which broke the
-/// komik genre-list endpoint. `komiku.org` serves identical sub-path content
-/// (manga lists, genre, search) plus a populated root, so the module is
-/// consolidated onto the canonical, working domain.
+/// Defaults to `https://api.komiku.org`. This is the API mirror whose
+/// sub-paths (`/manga/?tipe=manga`, `/genre/<slug>/`, `/search/<q>/`) serve
+/// the `.bge` grid layout the parsers expect. NOTE: `api.komiku.org`'s ROOT
+/// path returns an empty body — the komik genre-list endpoint must therefore
+/// fetch from `komiku.org` (base URL) instead of this root (see
+/// `KomikUseCase::genre_list`, which uses `base_url()`).
 pub fn get_komik_api_url() -> String {
-    env::var("KOMIK2_API_URL").unwrap_or_else(|_| "https://komiku.org".to_string())
+    env::var("KOMIK2_API_URL").unwrap_or_else(|_| "https://api.komiku.org".to_string())
 }
 
 /// Get Otakudesu URL from environment config.