refactor adapters into modular file structure

config-sqlite: split into repository/ (per entity) + serialization/ (per type) + error.rs
http-api: split into dto/ (per resource) + routes/ (per resource)
tcp-server: split into broadcaster, event_bus, server, error
rss: split parser from adapter, external tests
media: split error, external tests

crates/adapters/rss/tests/parser_tests.rs

@@ -0,0 +1,30 @@
+use domain::Value;
+use rss_adapter::{parse_rss, RssError};
+
+const SAMPLE_RSS: &str = r#"<?xml version="1.0" encoding="UTF-8"?>
+    <rss version="2.0">
+        <channel>
+            <title>Test Feed</title>
+            <link>https://example.com</link>
+            <item>
+                <title>First Article</title>
+                <description>Description of first article</description>
+                <link>https://example.com/1</link>
+            </item>
+            <item>
+                <title>Second Article</title>
+                <description>Description of second</description>
+                <link>https://example.com/2</link>
+            </item>
+        </channel>
+    </rss>"#;
+
+#[test]
+fn parses_rss_into_value() {
+    let result = parse_rss(SAMPLE_RSS).unwrap();
+
+    assert_eq!(result.get_path("$.title"), Some(&Value::String("Test Feed".into())));
+    assert_eq!(result.get_path("$.items[0].title"), Some(&Value::String("First Article".into())));
+    assert_eq!(result.get_path("$.items[1].title"), Some(&Value::String("Second Article".into())));
+    assert_eq!(result.get_path("$.items[0].description"), Some(&Value::String("Description of first article".into())));
+}