Python: Add samples syntax checking with pyright (#3710)

* Add samples syntax checking with pyright

- Add pyrightconfig.samples.json with relaxed type checking but import validation
- Add samples-syntax poe task to check samples for syntax and import errors
- Add samples-syntax to check and pre-commit-check tasks
- Fix 78 sample errors:
  - Update workflow builder imports to use agent_framework_orchestrations
  - Change content type isinstance checks to content.type comparisons
  - Use Content factory methods instead of removed content type classes
  - Fix TypedDict access patterns for Annotation
  - Fix various API mismatches (normalize_messages, ChatMessage.text, role)

* fixed a bunch of samples and tweaks to pre-commit

* updated lock

* updated lock

* fixes

* added lint to samples

python/samples/autogen-migration/orchestrations/03_swarm.py

@@ -7,7 +7,7 @@ to other specialized agents based on the task requirements.
 
 import asyncio
 
-from agent_framework import WorkflowEvent
+from agent_framework import AgentResponseUpdate, WorkflowEvent
 from orderedmultidict import Any
 
 
@@ -99,7 +99,6 @@ async def run_autogen() -> None:
 async def run_agent_framework() -> None:
     """Agent Framework's HandoffBuilder for agent coordination."""
     from agent_framework import (
-        AgentResponseUpdate,
         WorkflowRunState,
     )
     from agent_framework.openai import OpenAIChatClient