feat(analysis): re-analyze waveform when clearing loudness cache

Add analysis_delete_waveform_for_track, invoke it from loudness reseed,
clear waveformBins in the UI, and extend queue strings for tooltips/toast.

src-tauri/crates/psysonic-analysis/src/analysis_cache/store.rs

@@ -109,6 +109,25 @@ impl AnalysisCache {
         Ok(total)
     }
 
+    /// Remove all `waveform_cache` rows for this logical track (bare id and `stream:` variant).
+    pub fn delete_waveform_for_track_id(&self, track_id: &str) -> Result<u64, String> {
+        if track_id.trim().is_empty() {
+            return Ok(0);
+        }
+        let conn = self
+            .conn
+            .lock()
+            .map_err(|_| "analysis_cache lock poisoned".to_string())?;
+        let mut total: u64 = 0;
+        for tid in track_id_cache_variants(track_id) {
+            let n = conn
+                .execute("DELETE FROM waveform_cache WHERE track_id = ?1", params![tid])
+                .map_err(|e| e.to_string())?;
+            total = total.saturating_add(n as u64);
+        }
+        Ok(total)
+    }
+
     /// Remove all cached waveform rows across all tracks/variants.
     pub fn delete_all_waveforms(&self) -> Result<u64, String> {
         let conn = self

src-tauri/crates/psysonic-analysis/src/commands.rs

@@ -141,6 +141,14 @@ pub fn analysis_delete_loudness_for_track(
     cache.delete_loudness_for_track_id(&track_id)
 }
 
+#[tauri::command]
+pub fn analysis_delete_waveform_for_track(
+    track_id: String,
+    cache: tauri::State<'_, analysis_cache::AnalysisCache>,
+) -> Result<u64, String> {
+    cache.delete_waveform_for_track_id(&track_id)
+}
+
 #[tauri::command]
 pub fn analysis_delete_all_waveforms(
     cache: tauri::State<'_, analysis_cache::AnalysisCache>,