Fix linting issues: canonicalheader, embeddedstructfieldcheck, iotamixing, makezero, testableexamples, wastedassign, usetesting, tparallel, unconvert, intrange, iface

- canonicalheader: fix cacheTTL header value to canonical form
- embeddedstructfieldcheck: move embedded fields before regular fields in 4 structs
- iotamixing: split const blocks mixing iota with non-iota constants
- makezero: use make([]T, 0, n) instead of make([]T, n) before appending
- testableexamples: add missing Output: comment to ExampleOption_UnwrapOrZero
- wastedassign: remove wasted initial assignments in 4 locations
- usetesting: replace os.MkdirTemp/os.Setenv with t.TempDir/t.Setenv in tests
- tparallel: add t.Parallel() to 8 top-level test functions
- unconvert: remove 16 unnecessary type conversions
- intrange: convert 3 for loops to use integer range syntax
- iface: consolidate identical EditPrompter and Prompt interfaces via type alias

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

pkg/cmd/api/pagination.go

@@ -113,6 +113,7 @@ func addPerPage(p string, perPage int, params map[string]interface{}) string {
 // JSON array in order to apply pagination context between multiple API requests.
 type paginatedArrayReader struct {
 	io.Reader
+
 	isFirstPage bool
 	isLastPage  bool
 
@@ -153,6 +154,7 @@ func (r *paginatedArrayReader) Read(p []byte) (int, error) {
 // and objects. Call Close to write the end of the array.
 type jsonArrayWriter struct {
 	io.Writer
+
 	started bool
 	color   bool
 }

pkg/cmd/api/pagination_test.go

@@ -265,6 +265,7 @@ func TestJsonArrayWriter_Copy(t *testing.T) {
 
 type noWriteToReader struct {
 	io.Reader
+
 	limit int
 }