feat: tiered costs feature + admin tier management + tag selection

- costs: nullable notes (fix create without notes), drop renewalDate
  (schema + API + UI), gate POST/PATCH/DELETE to admin + costs feature
- feature middleware: admin-aware hasFeature + getEntitlements union;
  /auth/me and login return resolved entitlements
- users: tier enum (free/premium/enterprise) in create/update/list,
  admin UI tier select + tier badge
- tags: GET /tags/all, TagInput autocomplete in new/edit tool forms,
  feature suggestions on focus, query invalidation on create/update
- openapi: nullable ToolUpdate urls, ToolUpdate tier fields, listAllTags
- Dockerfile: push-force to drop renewal_date column

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

@@ -91,7 +91,6 @@ export default function ToolDetail() {
   const [costBillingPeriod, setCostBillingPeriod] = useState("monthly");
   const [costAmount, setCostAmount] = useState("");
   const [costCurrency, setCostCurrency] = useState("EUR");
-  const [costRenewal, setCostRenewal] = useState("");
   const [costNotes, setCostNotes] = useState("");
 
   useEffect(() => {
@@ -150,7 +149,6 @@ export default function ToolDetail() {
       notes: costNotes || null,
     };
     if (costAmount) body.cost = costAmount;
-    if (costRenewal) body.renewalDate = costRenewal;
     try {
       await customFetch(url, { method, body: JSON.stringify(body) });
       toast({ title: editCost ? "Cost updated" : "Cost added" });
@@ -168,7 +166,6 @@ export default function ToolDetail() {
     setCostBillingPeriod("monthly");
     setCostAmount("");
     setCostCurrency("EUR");
-    setCostRenewal("");
     setCostNotes("");
   }
 
@@ -178,7 +175,6 @@ export default function ToolDetail() {
     setCostBillingPeriod(c.billingPeriod ?? "monthly");
     setCostAmount(c.cost ?? "");
     setCostCurrency(c.currency ?? "EUR");
-    setCostRenewal(c.renewalDate ?? "");
     setCostNotes(c.notes ?? "");
     setCostDialogOpen(true);
   }
@@ -562,11 +558,6 @@ export default function ToolDetail() {
                           <div className="text-lg font-bold">
                             {c.cost != null ? `${c.cost} ${c.currency ?? ""}` : "Free"}
                           </div>
-                          {c.renewalDate && (
-                            <p className="text-xs text-muted-foreground mt-1">
-                              Renews: {new Date(c.renewalDate).toLocaleDateString()}
-                            </p>
-                          )}
                           {c.notes && <p className="text-xs text-muted-foreground mt-1 italic">{c.notes}</p>}
                         </div>
                         {isAdmin && (
@@ -641,10 +632,6 @@ export default function ToolDetail() {
                   </Select>
                 </div>
               </div>
-              <div className="space-y-2">
-                <label className="text-sm font-medium">Renewal Date</label>
-                <Input type="date" value={costRenewal} onChange={(e) => setCostRenewal(e.target.value)} />
-              </div>
               <div className="space-y-2">
                 <label className="text-sm font-medium">Notes</label>
                 <Textarea placeholder="Billing details, contract info..." value={costNotes} onChange={(e) => setCostNotes(e.target.value)} />