feat(dsl): bundle nested workflow tool imports and exports

[laipz8200]

Summary

Workflow DSL exports currently leave workflow tool references tied to the source workspace. Export graphs containing workflow tools as a ZIP with a separate, independently marked YAML file for each referenced workflow version and a manifest containing their relationships and deployment settings.

Import reconstructs the apps, published workflow tools, parameters, labels, and deployment settings together. It remaps nested, shared, and cyclic references, including Agent tool selections and prompt mentions, and defers publication events until the complete bundle commits. Archive limits, workspace permissions, and app quotas are enforced before deployment; plugin dependencies are collected across the bundle.

Existing YAML imports and exports remain supported. Browser exports automatically include associated workflows; API and CLI clients can opt in with include_workflow_tools and --include-workflow-tools.

Dependency

Builds on #40277 and targets laipz8200/adapt-graphon-engine-architecture so this PR contains only the DSL bundle changes.

[github-actions]

Pyrefly Diff

base → PR

--- /tmp/pyrefly_base.txt	2026-09-08 21:04:29.035748866 +0000
+++ /tmp/pyrefly_pr.txt	2026-09-08 21:04:15.223702469 +0000
@@ -8696,6 +8696,12 @@
   --> tests/unit_tests/services/test_workflow_collaboration_service.py:24:56
 ERROR Argument `list[int | str]` is not assignable to parameter `mentioned_user_ids` with type `Sequence[str]` in function `services.workflow_comment_service.WorkflowCommentService._filter_valid_mentioned_user_ids` [bad-argument-type]
    --> tests/unit_tests/services/test_workflow_comment_service.py:147:13
+ERROR `dict[@_, @_]` is not assignable to dict value type `list[Unknown] | str` [bad-assignment]
+  --> tests/unit_tests/services/test_workflow_dsl_bundle.py:49:40
+ERROR `dict[@_, @_]` is not assignable to dict value type `list[Unknown] | str` [bad-assignment]
+  --> tests/unit_tests/services/test_workflow_dsl_bundle.py:50:44
+ERROR Argument `Literal['workflow']` is not assignable to parameter `tool_type` with type `SQLCoreOperations[ToolProviderType] | ToolProviderType` in function `models.tools.ToolLabelBinding.__init__` [bad-argument-type]
+  --> tests/unit_tests/services/test_workflow_dsl_bundle.py:98:58
 ERROR No matching overload found for function `typing.MutableMapping.update` called with arguments: (dict[str, object]) [no-matching-overload]
   --> tests/unit_tests/services/test_workflow_node_execution_trace_service.py:41:18
 ERROR Argument `dict[str, list[dict[str, object]] | str]` is not assignable to parameter `process_data` with type `dict[str, object]` in function `_execution` [bad-argument-type]

[github-actions]

Pyrefly Type Coverage

Metric	Base	PR	Delta
Type coverage	64.05%	64.08%	+0.03%
Strict coverage	63.65%	63.69%	+0.04%
Typed symbols	45,969	46,041	+72
Untyped symbols	25,967	25,968	+1
Modules	3398	3400	+2