fix(seeder): correct log generation fields

- Parse provider group models from API response string and expose as slice
- Send `model` field (not `model_name`) when creating logs
- Use API key ID as `provider_id` instead of provider group ID
- Restrict reset behavior to resources matching seeder tag/prefix
- Refactor usage sample generation to accept a context struct

cmd/seeder/client.go

@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strings"
 	"time"
 )
 
@@ -182,19 +183,27 @@ type ProviderGroupRequest struct {
 	GoogleLocation string   `json:"google_location,omitempty"`
 	StaticHeaders  string   `json:"static_headers,omitempty"`
 	HeadersProfile string   `json:"headers_profile,omitempty"`
-	Models         []string `json:"models,omitempty"`
+	Models         []string `json:"models,omitempty"` // Request uses []string
 	Status         string   `json:"status,omitempty"`
 }
 
 type ProviderGroupResponse struct {
-	ID             uint     `json:"id"`
-	Name           string   `json:"name"`
-	Type           string   `json:"type"`
-	BaseURL        string   `json:"base_url"`
-	GoogleProject  string   `json:"google_project"`
-	GoogleLocation string   `json:"google_location"`
-	Models         []string `json:"models"`
-	Status         string   `json:"status"`
+	ID             uint   `json:"id"`
+	Name           string `json:"name"`
+	Type           string `json:"type"`
+	BaseURL        string `json:"base_url"`
+	GoogleProject  string `json:"google_project"`
+	GoogleLocation string `json:"google_location"`
+	Models         string `json:"models"` // Response is comma-separated string
+	Status         string `json:"status"`
+}
+
+// GetModelsSlice returns the Models field as a slice
+func (p *ProviderGroupResponse) GetModelsSlice() []string {
+	if p.Models == "" {
+		return nil
+	}
+	return strings.Split(p.Models, ",")
 }
 
 func (c *Client) ListProviderGroups() ([]ProviderGroupResponse, error) {
@@ -469,7 +478,7 @@ type LogRequest struct {
 	Group        string `json:"group,omitempty"`
 	MasterID     uint   `json:"master_id,omitempty"`
 	KeyID        uint   `json:"key_id,omitempty"`
-	ModelName    string `json:"model_name,omitempty"`
+	Model        string `json:"model,omitempty"` // Field name is "model" not "model_name"
 	ProviderID   uint   `json:"provider_id,omitempty"`
 	ProviderType string `json:"provider_type,omitempty"`
 	ProviderName string `json:"provider_name,omitempty"`