Store one prompt definition per ID

reliable_execution_contract_test.go

@@ -86,11 +86,12 @@ func reliabilityConfig(backends, profiles map[string]any) promptkit.Config {
 	return promptkit.Config{Sources: promptkit.ConfigurationSources{Main: &configkit.Input{Source: configkit.Mapping("reliable execution", map[string]any{
 		"backends": backends,
 		"profiles": profiles,
-		"prompts": map[string]any{"prompt": map[string]any{"1": map[string]any{
+		"prompts": map[string]any{"prompt": map[string]any{
+			"version":         "1",
 			"default_profile": "profile-a",
 			"messages":        []any{map[string]any{"role": "user", "content": "hello"}},
 			"output":          map[string]any{"format": "text", "validation_mode": "none"},
-		}}},
+		}},
 	})}}}
 }
 
@@ -252,14 +253,14 @@ func TestPreparedRetriesFreezeSourceAndCredentialAtExecution(t *testing.T) {
 	t.Setenv(envName, "first-key")
 	source := fstest.MapFS{"prompt.yaml": &fstest.MapFile{Data: []byte(`prompts:
   prompt:
-    "1":
-      default_profile: profile
-      messages:
-        - role: user
-          content: original message
-      output:
-        format: text
-        validation_mode: none
+    version: "1"
+    default_profile: profile
+    messages:
+      - role: user
+        content: original message
+    output:
+      format: text
+      validation_mode: none
 `)}}
 	var calls int
 	var auth, content []string
@@ -306,14 +307,14 @@ func TestPreparedRetriesFreezeSourceAndCredentialAtExecution(t *testing.T) {
 	}
 	source["prompt.yaml"] = &fstest.MapFile{Data: []byte(`prompts:
   prompt:
-    "1":
-      default_profile: profile
-      messages:
-        - role: user
-          content: changed message
-      output:
-        format: text
-        validation_mode: none
+    version: "1"
+    default_profile: profile
+    messages:
+      - role: user
+        content: changed message
+    output:
+      format: text
+      validation_mode: none
 `)}
 	result, err := engine.RunPrepared(context.Background(), prepared)
 	if err != nil || result == nil || calls != 2 {