fix(tests): resolve unit test and benchmark failures

- Fix project_repository_steps session mismatch: use shared session
  for repos so context.pr_session.commit() commits flushed data
- Fix cli_format_bench setup/teardown to accept fmt parameter for
  parameterized ASV benchmarks
- Fix plan_model_bench PlanPhase.APPLIED -> PlanPhase.APPLY
- Fix benchmark idempotency: use batch counters to generate unique IDs
  across repeated ASV iterations (plan_phase_migration_bench,
  project_migration_bench, resource_registry_migration_bench)
- Fix uow_lifecycle_bench FK constraint by reusing pre-seeded action
- Fix plan_lifecycle_persistence_bench to create fresh plan per iteration

benchmarks/project_migration_bench.py

@@ -42,6 +42,8 @@ class ProjectInsert:
     """Benchmark inserting project records."""
 
     def setup(self) -> None:
+        self._single_ctr = 0
+        self._batch_ctr = 0
         self.engine = create_engine("sqlite:///:memory:")
         event.listen(self.engine, "connect", _set_sqlite_pragma)
         with self.engine.connect() as conn:
@@ -54,9 +56,10 @@ class ProjectInsert:
         self.engine.dispose()
 
     def time_insert_single_project(self) -> None:
+        self._single_ctr += 1
         session = self.session_factory()
         proj = NamespacedProjectModel(
-            namespaced_name="bench/single-project",
+            namespaced_name=f"bench/single-project-{self._single_ctr}",
             namespace="bench",
             tags_json="[]",
             created_at=_now_iso(),
@@ -67,13 +70,16 @@ class ProjectInsert:
         session.close()
 
     def time_insert_100_projects(self) -> None:
+        offset = self._batch_ctr * 100
+        self._batch_ctr += 1
         session = self.session_factory()
         for i in range(100):
+            uid = offset + i
             proj = NamespacedProjectModel(
-                namespaced_name=f"bench/project-{i}",
+                namespaced_name=f"bench/project-{uid}",
                 namespace="bench",
-                description=f"Project {i}",
-                tags_json=json.dumps([f"tag-{i}"]),
+                description=f"Project {uid}",
+                tags_json=json.dumps([f"tag-{uid}"]),
                 created_at=_now_iso(),
                 updated_at=_now_iso(),
             )
@@ -86,6 +92,7 @@ class ProjectLinkInsert:
     """Benchmark inserting project resource link records."""
 
     def setup(self) -> None:
+        self._batch_ctr = 0
         self.engine = create_engine("sqlite:///:memory:")
         event.listen(self.engine, "connect", _set_sqlite_pragma)
         with self.engine.connect() as conn:
@@ -115,8 +122,8 @@ class ProjectLinkInsert:
         )
         session.add(proj)
 
-        # Create 50 resources
-        for i in range(50):
+        # Create resources (large pool so repeated iterations can use unique ones)
+        for i in range(5000):
             r = ResourceModel()
             r.resource_id = _make_ulid(i)
             r.type_name = "bench/git-checkout"
@@ -132,12 +139,15 @@ class ProjectLinkInsert:
         self.engine.dispose()
 
     def time_insert_50_links(self) -> None:
+        offset = self._batch_ctr * 50
+        self._batch_ctr += 1
         session = self.session_factory()
         for i in range(50):
+            uid = offset + i
             link = ProjectResourceLinkModel(
-                link_id=_make_ulid(1000 + i),
+                link_id=_make_ulid(10_000 + uid),
                 project_name="bench/link-project",
-                resource_id=_make_ulid(i),
+                resource_id=_make_ulid(uid),
                 read_only=i % 2 == 0,
                 created_at=_now_iso(),
             )