chore(claude): prefer map pattern table tests

Author: mwbrooks

.claude/CLAUDE.md

@@ -133,29 +133,29 @@ func NewExampleCommand(clients *shared.ClientFactory) *cobra.Command {
 
 ### Table-Driven Test Conventions
 
-**Preferred: Slice pattern** - uses `tc` for test case variable:
+**Preferred: Map pattern** - uses `tc` for test case variable:
 ```go
-tests := []struct {
-    name     string
+tests := map[string]struct {
     input    string
     expected string
 }{...}
-for _, tc := range tests {
-    t.Run(tc.name, func(t *testing.T) {
+for name, tc := range tests {
+    t.Run(name, func(t *testing.T) {
         // use tc.field
     })
 }
 ```
 
-**Legacy: Map pattern** - uses `tt` for test case variable (do not use for new tests):
+**Legacy: Slice pattern** - uses `tc` for test case variable (do not use for new tests):
 ```go
-tests := map[string]struct {
+tests := []struct {
+    name     string
     input    string
     expected string
 }{...}
-for name, tt := range tests {
-    t.Run(name, func(t *testing.T) {
-        // use tt.field
+for _, tc := range tests {
+    t.Run(tc.name, func(t *testing.T) {
+        // use tc.field
     })
 }
 ```