Cleanup agent-file-template.md (#2579)

* follow  fc3d124

agent-file-template.md is removed at  fc3d124

* Fix ruled line for constitution-template.md

* fix test

Author: yskkin

presets/ARCHITECTURE.md

@@ -158,8 +158,7 @@ presets/
         ├── plan-template.md
         ├── tasks-template.md
         ├── checklist-template.md
-        ├── constitution-template.md
-        └── agent-file-template.md
+        └── constitution-template.md
 ```
 
 ## Module Structure

presets/self-test/preset.yml

@@ -44,12 +44,6 @@ provides:
       description: "Self-test constitution template"
       replaces: "constitution-template"
 
-    - type: "template"
-      name: "agent-file-template"
-      file: "templates/agent-file-template.md"
-      description: "Self-test agent file template"
-      replaces: "agent-file-template"
-
     - type: "command"
       name: "speckit.specify"
       file: "commands/speckit.specify.md"

presets/self-test/templates/agent-file-template.md

@@ -2620,7 +2620,7 @@ def test_self_test_manifest_valid(self):
         assert manifest.id == "self-test"
         assert manifest.name == "Self-Test Preset"
         assert manifest.version == "1.0.0"
-        assert len(manifest.templates) == 8  # 6 templates + 2 commands
+        assert len(manifest.templates) == 7  # 5 templates + 2 commands
 
     def test_self_test_provides_all_core_templates(self):
         """Verify the self-test preset provides an override for every core template."""