Adjust the prompt FS layout and test strategy

internal/modules/sharedassets/assets/prompts/common-dnd-references.md

@@ -2,8 +2,11 @@ Optional reference material for this Dungeons & Dragons campaign is provided
 below. Use it only to disambiguate names, aliases, speakers, campaign terms, or
 spell names already present in the transcript.
 
-Roster reference:
-{{ input "roster" }}
+Player list reference:
+{{ input "players" }}
+
+Party roster reference:
+{{ input "party" }}
 
 Glossary reference:
 {{ input "glossary" }}

internal/modules/sharedassets/prompt_fs.go

@@ -19,7 +19,8 @@ type ModulePromptFile struct {
 }
 
 // ModulePromptFS builds a prompt filesystem for a module directory from
-// module-owned prompt files plus the common D&D shared prompt files.
+// module-owned prompt files plus common D&D shared prompt files under the
+// module's sharedassets subdirectory.
 func ModulePromptFS(moduleDir string, moduleFS fs.FS, files []ModulePromptFile) (fs.FS, error) {
 	return modulePromptFS(moduleDir, moduleFS, files, embeddedAssets)
 }
@@ -60,7 +61,7 @@ func modulePromptFS(moduleDir string, moduleFS fs.FS, files []ModulePromptFile,
 		if err != nil {
 			return nil, fmt.Errorf("read shared prompt asset %s: %w", name, err)
 		}
-		assets["assets/prompts/"+cleanModuleDir+"/"+name] = append([]byte(nil), data...)
+		assets["assets/prompts/"+cleanModuleDir+"/sharedassets/"+name] = append([]byte(nil), data...)
 	}
 	return assets, nil
 }

internal/modules/sharedassets/prompt_fs_test.go

@@ -20,18 +20,21 @@ func TestModulePromptFSCombinesModuleAndSharedPrompts(t *testing.T) {
 	}
 
 	tests := map[string]string{
-		"assets/prompts/dnd.test/dnd.test.yaml":            "id: dnd.test",
-		"assets/prompts/dnd.test/task.md":                  "task",
-		"assets/prompts/dnd.test/common-dnd-system.md":     "You work with Dungeons & Dragons gameplay transcripts.",
-		"assets/prompts/dnd.test/common-dnd-transcript.md": "{{ input \"transcript\" }}",
-		"assets/prompts/dnd.test/common-dnd-references.md": "Roster reference:",
+		"assets/prompts/dnd.test/dnd.test.yaml":                         "id: dnd.test",
+		"assets/prompts/dnd.test/task.md":                               "task",
+		"assets/prompts/dnd.test/sharedassets/common-dnd-system.md":     "",
+		"assets/prompts/dnd.test/sharedassets/common-dnd-transcript.md": "",
+		"assets/prompts/dnd.test/sharedassets/common-dnd-references.md": "",
 	}
 	for path, want := range tests {
 		data, err := fs.ReadFile(fsys, path)
 		if err != nil {
 			t.Fatalf("ReadFile(%q) error = %v, want nil", path, err)
 		}
-		if !strings.Contains(string(data), want) {
+		if len(data) == 0 {
+			t.Fatalf("ReadFile(%q) returned empty content", path)
+		}
+		if want != "" && !strings.Contains(string(data), want) {
 			t.Fatalf("ReadFile(%q) = %q, want substring %q", path, data, want)
 		}
 	}