fix(seeder): improve key idempotency and log names

Trim whitespace in provider model lists, format provider names as `group#keyID`
to match DP logs, and skip existing API keys during seeding (deleting on reset)
to keep runs idempotent and summaries accurate

cmd/seeder/client.go

@@ -198,12 +198,16 @@ type ProviderGroupResponse struct {
 	Status         string `json:"status"`
 }
 
-// GetModelsSlice returns the Models field as a slice
+// GetModelsSlice returns the Models field as a slice with trimmed whitespace
 func (p *ProviderGroupResponse) GetModelsSlice() []string {
 	if p.Models == "" {
 		return nil
 	}
-	return strings.Split(p.Models, ",")
+	parts := strings.Split(p.Models, ",")
+	for i, part := range parts {
+		parts[i] = strings.TrimSpace(part)
+	}
+	return parts
 }
 
 func (c *Client) ListProviderGroups() ([]ProviderGroupResponse, error) {
@@ -472,6 +476,22 @@ func (c *Client) CreateKey(masterID uint, req KeyRequest) (*KeyResponse, error)
 	return &result, nil
 }
 
+func (c *Client) ListKeys(masterID uint) ([]KeyResponse, error) {
+	data, err := c.get(fmt.Sprintf("/admin/masters/%d/keys", masterID))
+	if err != nil {
+		return nil, err
+	}
+	var result []KeyResponse
+	if err := json.Unmarshal(data, &result); err != nil {
+		return nil, fmt.Errorf("unmarshal keys: %w", err)
+	}
+	return result, nil
+}
+
+func (c *Client) DeleteKey(masterID, keyID uint) error {
+	return c.delete(fmt.Sprintf("/admin/masters/%d/keys/%d", masterID, keyID))
+}
+
 // --- Log API ---
 
 type LogRequest struct {