Refactor tests for execution plan and add comprehensive storage tests

- Updated `TestModuleSingletons` in `test_execution_plan.py` to reflect new agent templates and playbook names.
- Changed assertions in playbook tests to match updated templates and agents.
- Introduced `test_storage.py` to cover the storage layer, including encryption, BlobStore, and VectorStore functionalities.
- Added tests for S3 interactions, ensuring upload, download, delete, and list operations work as expected.
- Implemented mock tests for Pinecone and Qdrant vector stores to validate upsert, search, and delete operations.

tests/test_execution_plan.py

@@ -243,14 +243,14 @@ class TestPlanCache:
 
 class TestModuleSingletons:
     def test_template_registry_has_all_agent_defaults(self) -> None:
-        for agent in ("task_agent", "calendar_agent", "email_agent", "analytics_agent"):
+        for agent in ("task_agent", "checkpoint_agent", "project_agent", "note_agent"):
             assert template_registry.has(f"tpl_{agent}_default"), (
                 f"Missing template: tpl_{agent}_default"
             )
 
     def test_template_registry_has_operation_templates(self) -> None:
-        assert template_registry.has("tpl_email_extract_action_items")
-        assert template_registry.has("tpl_analytics_weekly_summary")
+        assert template_registry.has("tpl_task_extract_from_project")
+        assert template_registry.has("tpl_note_weekly_summary")
 
     def test_template_registry_get_returns_non_empty_string(self) -> None:
         text = template_registry.get("tpl_task_agent_default")
@@ -260,20 +260,20 @@ class TestModuleSingletons:
     def test_plan_cache_has_prebuilt_playbooks(self) -> None:
         assert len(plan_cache.get_all_playbooks()) >= 2
 
-    def test_playbook_create_task_from_email(self) -> None:
-        plan = plan_cache.get_plan("create_task_from_email")
+    def test_playbook_create_tasks_from_project(self) -> None:
+        plan = plan_cache.get_plan("create_tasks_from_project")
         assert plan is not None
-        assert plan.agent == "email_agent"
+        assert plan.agent == "project_agent"
         assert len(plan.steps) == 2
-        assert plan.steps[0].prompt_template == "tpl_email_extract_action_items"
+        assert plan.steps[0].prompt_template == "tpl_task_extract_from_project"
         assert plan.steps[1].data_from_step == 0
 
-    def test_playbook_generate_weekly_report(self) -> None:
-        plan = plan_cache.get_plan("generate_weekly_report")
+    def test_playbook_generate_weekly_note(self) -> None:
+        plan = plan_cache.get_plan("generate_weekly_note")
         assert plan is not None
-        assert plan.agent == "analytics_agent"
+        assert plan.agent == "note_agent"
         assert len(plan.steps) == 2
-        assert plan.steps[0].prompt_template == "tpl_analytics_weekly_summary"
+        assert plan.steps[0].prompt_template == "tpl_note_weekly_summary"
         assert plan.steps[1].data_from_step == 0
 
     def test_playbook_steps_have_no_raw_prompt_text(self) -> None: