chore: and more cleanups

specs/search.allium

@@ -7,6 +7,22 @@
 use "./post.allium" as post
 use "./media.allium" as media
 
+surface SearchControlSurface {
+    facing _: SearchOperator
+
+    provides:
+        SearchPostsRequested(query, filters)
+        SearchMediaRequested(query)
+}
+
+surface SearchIndexRuntimeSurface {
+    facing _: SearchRuntime
+
+    provides:
+        SearchIndexUpdated(post)
+        SearchIndexUpdated(media)
+}
+
 value StemmerLanguage {
     -- Snowball stemmers for 24 languages
     -- ISO 639-1 to Snowball mapping
@@ -14,6 +30,13 @@ value StemmerLanguage {
     code: String
 }
 
+surface StemmerLanguageSurface {
+    context language: StemmerLanguage
+
+    exposes:
+        language.code
+}
+
 entity PostSearchIndex {
     -- SQLite FTS5 virtual table
     -- Indexed fields: title, excerpt, content, tags, categories