feat: add CLI args, health endpoint, and fix torznab search

- Add clap for CLI argument parsing (-c config, -p port)
- Add health endpoint showing service status at /api/health
- Add IndexerType enum for auto URL construction (jackett/prowlarr/torznab)
- Fix Axum 0.8 route syntax ({param} instead of :param)
- Fix torznab search to use 'q' param instead of artist/album (Jackett only supports q)

src/services/indexer_service.rs

@@ -1,7 +1,7 @@
 use std::collections::HashMap;
 use std::sync::Arc;
 
-use crate::config::IndexerConfig;
+use crate::config::{IndexerConfig, IndexerType};
 use crate::indexer::{Indexer, IndexerError, MusicSearchCriteria, SearchResult, TorznabIndexer};
 
 pub struct IndexerService {
@@ -19,13 +19,23 @@ impl IndexerService {
         let mut service = Self::new();
 
         for config in configs {
-            let indexer = TorznabIndexer::new(&config.name, &config.url, &config.api_key)?;
+            let torznab_url = Self::build_torznab_url(&config.url, config.indexer_type);
+            let indexer = TorznabIndexer::new(&config.name, &torznab_url, &config.api_key)?;
             service.add_indexer(Arc::new(indexer));
         }
 
         Ok(service)
     }
 
+    fn build_torznab_url(base_url: &str, indexer_type: IndexerType) -> String {
+        let base = base_url.trim_end_matches('/');
+        match indexer_type {
+            IndexerType::Jackett => format!("{}/api/v2.0/indexers/all/results/torznab/", base),
+            IndexerType::Prowlarr => format!("{}/api/v1/indexer/all/torznab", base),
+            IndexerType::Torznab => base_url.to_string(),
+        }
+    }
+
     pub fn add_indexer(&mut self, indexer: Arc<dyn Indexer>) {
         self.indexers.insert(indexer.name().to_string(), indexer);
     }