Store one prompt definition per ID

prepared_execution_contract_test.go

@@ -767,11 +767,12 @@ func preparedContractConfig(message string, keyRequired bool) promptkit.Config {
 			"profiles": map[string]any{"profile": map[string]any{
 				"endpoint": "http://example.test/v1", "model": "model", "api_key_required": keyRequired,
 			}},
-			"prompts": map[string]any{"prepared": map[string]any{"1": map[string]any{
+			"prompts": map[string]any{"prepared": map[string]any{
+				"version":         "1",
 				"default_profile": "profile",
 				"messages":        []any{map[string]any{"role": "user", "content": message}},
 				"output":          map[string]any{"format": "text", "validation_mode": "none"},
-			}}},
+			}},
 		}),
 	}}}
 }
@@ -780,19 +781,19 @@ func preparedPromptSource(label string) fstest.MapFS {
 	return fstest.MapFS{
 		"prompt.yaml": &fstest.MapFile{Data: []byte(`prompts:
   prepared:
-    "1":
-      default_profile: profile
-      inputs:
-        - name: input
-          required: true
-      messages:
-        - role: user
-          content: 'Input={{input "input"}} Label={{.label}}'
-      description: ` + label + `
-      output:
-        format: json
-        validation_mode: json_schema
-        schema_path: schema.json
+    version: "1"
+    default_profile: profile
+    inputs:
+      - name: input
+        required: true
+    messages:
+      - role: user
+        content: 'Input={{input "input"}} Label={{.label}}'
+    description: ` + label + `
+    output:
+      format: json
+      validation_mode: json_schema
+      schema_path: schema.json
 `)},
 	}
 }