feat: allow premium+ users to manage costs

- costs routes drop requireAdmin, keep auth + costs feature check
- useAuth exposes hasFeature(feature) based on entitlements
- tool-detail costs section gated by hasFeature('costs') instead of isAdmin

artifacts/api-server/src/routes/costs.ts

@@ -2,7 +2,7 @@ import { Router, type IRouter } from "express";
 import { eq, and } from "drizzle-orm";
 import { z } from "zod";
 import { db, toolsTable, toolCostsTable } from "@workspace/db";
-import { requireAuth, requireAdmin } from "../middleware/auth";
+import { requireAuth } from "../middleware/auth";
 import { requireFeature } from "../middleware/feature";
 import { writeAuditLog } from "../lib/audit";
 
@@ -43,7 +43,7 @@ router.get("/tools/:id/costs", async (req, res): Promise<void> => {
   res.json(costs);
 });
 
-router.post("/tools/:id/costs", requireAuth, requireFeature("costs"), requireAdmin, async (req, res): Promise<void> => {
+router.post("/tools/:id/costs", requireAuth, requireFeature("costs"), async (req, res): Promise<void> => {
   const toolId = Number(req.params.id);
   if (isNaN(toolId)) { res.status(400).json({ error: "Invalid id" }); return; }
 
@@ -71,7 +71,7 @@ router.post("/tools/:id/costs", requireAuth, requireFeature("costs"), requireAdm
   res.status(201).json(entry);
 });
 
-router.patch("/costs/:id", requireAuth, requireFeature("costs"), requireAdmin, async (req, res): Promise<void> => {
+router.patch("/costs/:id", requireAuth, requireFeature("costs"), async (req, res): Promise<void> => {
   const id = Number(req.params.id);
   if (isNaN(id)) { res.status(400).json({ error: "Invalid id" }); return; }
 
@@ -96,7 +96,7 @@ router.patch("/costs/:id", requireAuth, requireFeature("costs"), requireAdmin, a
   res.json(updated);
 });
 
-router.delete("/costs/:id", requireAuth, requireFeature("costs"), requireAdmin, async (req, res): Promise<void> => {
+router.delete("/costs/:id", requireAuth, requireFeature("costs"), async (req, res): Promise<void> => {
   const id = Number(req.params.id);
   if (isNaN(id)) { res.status(400).json({ error: "Invalid id" }); return; }
 

artifacts/toolrate/src/hooks/use-auth.ts

@@ -22,6 +22,12 @@ export function useAuth() {
   const isLocalMode = authMode?.mode === "local";
   const tier = isAuthenticated ? user?.tier ?? "free" : "free";
 
+  function hasFeature(feature: string): boolean {
+    if (!isAuthenticated) return false;
+    if (user?.role === "admin") return true;
+    return !!user?.entitlements?.includes(feature);
+  }
+
   function login(returnTo?: string) {
     if (isLocalMode) {
       const path = returnTo
@@ -47,6 +53,7 @@ export function useAuth() {
     isAdmin,
     isLocalMode,
     tier,
+    hasFeature,
     login,
     logout,
   };

artifacts/toolrate/src/pages/tool-detail.tsx

@@ -74,7 +74,8 @@ export default function ToolDetail() {
   const [isReviewFormOpen, setIsReviewFormOpen] = useState(false);
   const [deleteOpen, setDeleteOpen] = useState(false);
 
-  const { user, isAdmin } = useAuth();
+  const { user, isAdmin, hasFeature } = useAuth();
+  const canManageCosts = hasFeature("costs");
   const deleteTool = useDeleteTool();
 
   const [similarData, setSimilarData] = useState<{ manual: any[]; auto: any[] } | null>(null);
@@ -535,7 +536,7 @@ export default function ToolDetail() {
           <div className="space-y-4 mt-8">
             <div className="flex items-center justify-between">
               <h3 className="text-xl font-bold">Costs</h3>
-              {isAdmin && (
+              {canManageCosts && (
                 <Button variant="outline" size="sm" onClick={() => { resetCostForm(); setCostDialogOpen(true); }} className="gap-2">
                   <Plus className="w-4 h-4" /> Add Cost
                 </Button>
@@ -560,7 +561,7 @@ export default function ToolDetail() {
                           </div>
                           {c.notes && <p className="text-xs text-muted-foreground mt-1 italic">{c.notes}</p>}
                         </div>
-                        {isAdmin && (
+                          {canManageCosts && (
                             <div className="flex gap-1 opacity-0 group-hover:opacity-100 transition-opacity">
                               <Button variant="ghost" size="icon" className="h-7 w-7" onClick={() => openEditCost(c)}>
                                 <Pencil className="w-3.5 h-3.5" />