* feat: Implement return-to-previous routing in handoff workflow
- Also obsoletes HandoffsWorkflowBuilder => HandoffWorkflowBuilder (no "s")
* refactor: Remove instance-shared current agent tracking in handoffs
Because the tracker was instance-shared between the start and end executors, it would be shared between all sessions, resulting in incorrect behaviour.
The corect way to do this is to keep the data in a shared executor scope, which is per-session.
* fix: Fix test logic for Handoff to correctly use checkpointing for multiturn
* feat: Implement Polymorphic Routing
* feat: Add support for Send/Yield annotations with basic Executor
* Adds annotations to Declarative workflow executors
* fix: Address PR Comments
* Implicit filter in collection loops
* Remove debug / usused / superfluous code
* Fix ProtocolBuilder implicit output registrations
* Fix logic error in ExecuteRouteGeneratorTests.ClassWithManualConfigureProtocol_DoesNotGenerate
* fix: Solidify type checks and send/yield type registrations
* fix: Suppress generation of TurnTokens out of AggregateTurnMessagesExecutor
* Fixes an issue where ConcurrentEndExecutor is not expecting TurnTokens.
* fix: Add ProtocolBuilder support for chained-delegation
* Updates Declarative pacakge to rely on chained-delegation Send/Yield registration
* Renames DeclarativeActionExectuor's new ExecuteAsync to ExecuteActionAsync to avoid colliding with Executor.ExecutoeAsync
* fix: Address PR Comments
* Fixes type mapping in FanInEdgeRunner
* Fixes and expalins send/yield type registration in FunctionExecutor
* fixup: build-break
* fix: Add missing SendsMesage declaration to InvokeAzureAgentExecutor
Concurrent run support was recently added to workflows, but Orchestrations did not fully update to support it. A few executors were missing Cross-Run Shareable annotations, and the ConcurrentEnd executor needed to be factory-instantiated.
This also ports the fix for #1613 from #1637, to avoid waiting on that PR.
* refactor: remove unused internals
* feat: Execution Mode for sharing a workflow among concurrent runs
* feat: Update WorkflowHostAgent to support concurrent execution
* Also update AsAgent APIs to support injecting a CheckpointManager and an IWorkflowExecutionEnvironment
* fix: Make Read logic consistent in DeclarativeWorkflowContext