refactor: upgrade to Go 1.26 and modernize code idioms

- Replace `interface{}` with `any` type alias across all packages
- Use built-in `min()`/`max()` for parameter clamping
- Use `slices.SortFunc`, `slices.Min`, `slices.Max` for cleaner code
- Use `strings.Cut()` for simpler string parsing in auth middleware
- Use `errors.Is()` for proper error comparison in handlers
- Update dependencies: golang.org/x/image 0.37.0 -> 0.38.0
- Add Wire code generation guidelines to ARCHITECTURE.md
- Disable Go cache in CI build workflow

internal/pkg/cursor/pagination.go

@@ -93,14 +93,14 @@ func (r *PageRequest) IsBackward() bool {
 
 // PageResponse 游标分页响应结构
 type PageResponse struct {
-	Items      interface{} `json:"items"`
-	NextCursor string      `json:"next_cursor"`
-	PrevCursor string      `json:"prev_cursor,omitempty"`
-	HasMore    bool        `json:"has_more"`
+	Items      any    `json:"items"`
+	NextCursor string `json:"next_cursor"`
+	PrevCursor string `json:"prev_cursor,omitempty"`
+	HasMore    bool   `json:"has_more"`
 }
 
 // NewPageResponse 创建分页响应
-func NewPageResponse(items interface{}, nextCursor, prevCursor string, hasMore bool) *PageResponse {
+func NewPageResponse(items any, nextCursor, prevCursor string, hasMore bool) *PageResponse {
 	return &PageResponse{
 		Items:      items,
 		NextCursor: nextCursor,