Add wildlife display, species filtering, updated data sources

- Species struct: 13 new wildlife fields (nectar/pollen, bee/butterfly/bird counts, native status)
- Species list: filter dropdowns for plant_layer, nitrogen_fixer, drought_tolerance, native_status
- Species detail: Wildlife & Ecology card with visual nectar/pollen bars, bee counts, native badges
- Data sources page: added NaturaDB, Dreschflegel, Bingenheimer Saatgut
- API: list_species now supports filter query params

herbapi-ui/src/pages/sources.rs

@@ -58,6 +58,27 @@ const SOURCES: &[DataSource] = &[
         data_used: "Structured data: USDA zones, taxonomy links.",
         license: "CC0",
     },
+    DataSource {
+        name: "NaturaDB",
+        url: "https://naturadb.de",
+        description: "German native plant database with extensive wildlife interaction data.",
+        data_used: "Wildlife interaction data (pollinators, wild bees, butterflies, birds), native status classification, nectar/pollen values.",
+        license: "Content scraped for research",
+    },
+    DataSource {
+        name: "Dreschflegel",
+        url: "https://dreschflegel-saatgut.de",
+        description: "German organic seed cooperative offering open-pollinated and heritage varieties.",
+        data_used: "Cultivar data. Scraped from catalog.",
+        license: "Proprietary",
+    },
+    DataSource {
+        name: "Bingenheimer Saatgut",
+        url: "https://bingenheimersaatgut.de",
+        description: "Demeter-certified biodynamic seed company from Germany.",
+        data_used: "Cultivar data. Scraped from catalog.",
+        license: "Proprietary",
+    },
 ];
 
 #[component]