feat: rename bugfix-ship/requirement-flow to short-ship/long-ship with shared ship records

short-ship and long-ship share one ship-id record under .pouch/ship/<id>/.
specifier writes PRDs into spec/; delivery-loop appends evidence pointers.
Old names stay as deprecation stubs so existing installs keep working.

tests/test_pouch_catalog.py

@@ -32,8 +32,14 @@ class CatalogTests(unittest.TestCase):
             "releaser",
             "note-style",
             "pouch",
+            "short-ship",
+            "long-ship",
+            "ship",
+            "pr-ship",
             # 旧名兼容占位，仍须可列出（见 test_manage_release_is_deprecation_stub）
             "manage-release",
+            "bugfix-ship",
+            "requirement-flow",
         ):
             self.assertIn(f"| {name} |", result.stdout)
         self.assertIn("/ack 初始化", result.stdout)
@@ -51,6 +57,28 @@ class CatalogTests(unittest.TestCase):
         self.assertFalse((stub / "references").exists())
         self.assertFalse((stub / "templates").exists())
 
+    def test_bugfix_ship_is_deprecation_stub(self) -> None:
+        stub = REPO_ROOT / "skills" / "bugfix-ship"
+        skill = (stub / "SKILL.md").read_text(encoding="utf-8")
+        self.assertIn("name: bugfix-ship", skill)
+        self.assertIn("已弃用", skill)
+        self.assertIn("../short-ship/SKILL.md", skill)
+        self.assertTrue((REPO_ROOT / "skills" / "short-ship" / "SKILL.md").is_file())
+        self.assertFalse((stub / "references").exists())
+        self.assertFalse((stub / "templates").exists())
+        self.assertFalse((stub / "agents").exists())
+
+    def test_requirement_flow_is_deprecation_stub(self) -> None:
+        stub = REPO_ROOT / "skills" / "requirement-flow"
+        skill = (stub / "SKILL.md").read_text(encoding="utf-8")
+        self.assertIn("name: requirement-flow", skill)
+        self.assertIn("已弃用", skill)
+        self.assertIn("../long-ship/SKILL.md", skill)
+        self.assertTrue((REPO_ROOT / "skills" / "long-ship" / "SKILL.md").is_file())
+        self.assertFalse((stub / "references").exists())
+        self.assertFalse((stub / "templates").exists())
+        self.assertFalse((stub / "agents").exists())
+
     def test_missing_readme_fails(self) -> None:
         with tempfile.TemporaryDirectory() as tmp:
             skill = Path(tmp) / "demo"