Python: Fix imports for durabletask package

[Laveesh Rohra (larohra)]

Motivation and Context

Update all exports for durabletask package to the azure directory. Going forward, all classes will be available via -
from agent_framework.azure import Durable*

Description

Contribution Checklist

• The code builds clean without any errors or warnings
• The PR follows the Contribution Guidelines
• All unit tests pass, and I have added new tests where possible
• Is this a breaking change? If yes, add "[BREAKING]" prefix to the title of the PR.

[Mark Wallace (markwallace-microsoft)]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
TOTAL	16561	2491	84%

report-only-changed-files is enabled. No files were changed during this commit :)

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
3239	234 💤	0 ❌	0 🔥	1m 4s ⏱️

[Copilot]

Pull request overview

This PR consolidates the durabletask package exports under the agent_framework.azure module path. All durabletask-related classes (DurableAIAgentClient, DurableAIAgentWorker, DurableAIAgentOrchestrationContext, etc.) will now be importable via from agent_framework.azure import Durable* instead of from agent_framework_durabletask import *. The change also updates all sample code to use the new import paths, adds version management via importlib.metadata, and includes dependency updates in the lockfile.

Changes:

• Updated import paths from agent_framework_durabletask to agent_framework.azure across all sample code
• Added durabletask exports to agent_framework.azure.__init__.pyi stub file
• Added __version__ support to agent_framework_durabletask package
• Fixed import inconsistency in one sample (AgentRunResponse → AgentResponse)
• Updated various dependency versions in uv.lock

Reviewed changes

Copilot reviewed 18 out of 20 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
python/packages/durabletask/agent_framework_durabletask/__init__.py	Added version management using importlib.metadata and exported __version__
python/packages/core/agent_framework/azure/__init__.pyi	Added durabletask class exports to azure module stub file
python/packages/durabletask/README.md	Updated example import from AgentWorker to DurableAIAgentWorker
python/packages/durabletask/agent_framework_durabletask/_*.py	Updated docstring examples to use new import path
python/samples/getting_started/durabletask/*/worker.py	Consolidated imports to use agent_framework.azure
python/samples/getting_started/durabletask/*/client.py	Updated client imports to use agent_framework.azure
python/uv.lock	Updated dependency versions (boto3, botocore, pandas, pyarrow, regex, etc.)