feat: synchronize dashboard origins with management page and add integration endpoints

- Updated Dashboard origin chart to strictly reflect only configured origins, grouping unmapped data into an 'Outros' category.

- Added GET /api/integration/funnels and GET /api/integration/origins endpoints to allow external AIs to dynamically map stages and lead sources.

pages/Dashboard.tsx

@@ -192,25 +192,45 @@ export const Dashboard: React.FC = () => {
 
   // --- Chart Data: Origin ---
   const originData = useMemo(() => {
-    const origins = data.reduce((acc, curr) => {
+    const counts = data.reduce((acc, curr) => {
       acc[curr.origin] = (acc[curr.origin] || 0) + 1;
       return acc;
     }, {} as Record<string, number>);
 
-    return (Object.entries(origins) as [string, number][])
-      .map(([name, value]) => {
-        const def = originDefs.find(o => o.name === name);
-        // Extract base color (e.g. "red" from "bg-red-100 text-red-700...")
-        let hexColor = '';
-        if (def && def.color_class) {
+    if (originDefs.length > 0) {
+      const activeOrigins = originDefs.map(def => {
+        let hexColor = '#71717a'; // Default zinc
+        if (def.color_class) {
            const match = def.color_class.match(/bg-([a-z]+)-\d+/);
            if (match && tailwindToHex[match[1]]) {
              hexColor = tailwindToHex[match[1]];
            }
         }
-        return { name, value, hexColor };
-      })
-      .sort((a, b) => b.value - a.value);
+        return {
+          name: def.name,
+          value: counts[def.name] || 0,
+          hexColor
+        };
+      });
+
+      // Calculate "Outros" for data that doesn't match current active origins
+      const activeNames = new Set(originDefs.map(d => d.name));
+      const othersValue = (Object.entries(counts) as [string, number][])
+        .filter(([name]) => !activeNames.has(name))
+        .reduce((sum, [_, val]) => sum + val, 0);
+
+      if (othersValue > 0) {
+        activeOrigins.push({
+          name: 'Outros',
+          value: othersValue,
+          hexColor: '#94a3b8' // Gray-400
+        });
+      }
+
+      return activeOrigins.sort((a, b) => b.value - a.value);
+    }
+
+    return []; // No definitions = No chart (matches funnel behavior)
   }, [data, originDefs]);
 
   // --- Table Data: Sellers Ranking ---