Python: Update agentserver to x.1.0b1

[Tao Chen (TaoChenOSU)]

Motivation & Context

Update FHA SDK dependencies to x.1.0b1, which introduces the latest local state store feature.

Description & Review Guide

• What are the major changes?
  • Update azure-ai-agentserver-core to 2.1.0b1, azure-ai-agentserver-responses to 2.1.0b1, and azure-ai-agentserver-invocations to 1.1.0b1.
  • Remove all in-memory store implementation. The default will be to use the Foundry state store for local and hosted environments.
  • The stores require an additional required argument which is the platform context to enable user isolation.
• What is the impact of these changes?
  • The removal of all in memory store option for FHA. Users can still override the store providers for in memory options.
• What do you want reviewers to focus on?
  • The store implementation updates.

Contribution Checklist

• The code builds clean without any errors or warnings
• All unit tests pass, and I have added new tests where possible
• The PR follows the Contribution Guidelines
• This PR is linked to an issue and there is no other open PR for this issue (see Related Issue above).
• This is not a breaking change. If it is a breaking change, add the breaking change label (or add "[BREAKING]" to the title prefix, before or after any language prefix) — a workflow keeps the label and title prefix in sync automatically.

[Copilot]

Pull request overview

Updates Python Foundry hosting for AgentServer 2.1, durable local storage, stable conversation identifiers, and custom Cosmos DB session storage.

Changes:

• Upgrades AgentServer dependencies and storage providers.
• Uses conversation-chain IDs for sessions and workflow checkpoints.
• Adds a custom Cosmos DB storage sample and updates tests/docs.

Reviewed changes

Copilot reviewed 13 out of 14 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
custom_storage/requirements.txt	Adds sample dependencies.
custom_storage/README.md	Documents custom storage usage.
custom_storage/main.py	Implements Cosmos-backed sessions.
custom_storage/Dockerfile	Packages the sample.
custom_storage/.env.example	Lists required configuration.
custom_storage/.dockerignore	Excludes local artifacts.
tests/test_state_store.py	Updates provider expectations.
tests/test_responses.py	Replaces removed in-memory approval store.
foundry_hosting/README.md	Documents durable local persistence.
foundry_hosting/pyproject.toml	Updates AgentServer dependencies.
_state_store.py	Uses Foundry stores in all environments.
_responses.py	Revises session and checkpoint scoping.
_request_context.py	Removes obsolete path validation.

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[github-actions]

Automated Code Review

Reviewers: 1

✗ Deep Review

Deep review found 2 verified inline finding(s).

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Automated review by TaoChenOSU's agents

[github-actions]

MAF Automated Review — Iteration 2

Result: Findings reported
Scope: 16 net-new commit(s): 30996433ac86, 5e52c6a7183a, 27d82b1567a6, 56d13bce4eb2, d17a81e852cf, 171693f93da6, 3a5d00be5473, 35c6b880f737, 3aadac53c80c, 322101142718, 7cfa905486ac, e926ad2859fd, 6d25fb1e9c68, e9ed52e3916b, cf0cf904b3e2, 012d43d14717
Model: gpt-5.6-sol

Overview

The PR updates AgentServer dependencies and threads request-scoped platform context through Foundry-backed session, checkpoint, and approval stores, including explicit user and call identity. Those are useful isolation guardrails, and the new storage tests exercise call-ID forwarding. The remaining risk is that the public custom-store interface changes incompatibly and four state-store tests were not updated for the new user-ID argument.

Reviewed the supplied incremental change set across correctness, security/reliability, architecture, and failure behavior.
2 verified findings remained after source verification (2 medium) across 1 file. Details are attached to the affected lines below.

Affected areas: python/packages/foundry_hosting/agent_framework_foundry_hosting/_state_store.py

[github-actions]

Python Test Coverage Report •

File	Stmts	Miss	Cover	Missing
packages/azure-contentunderstanding/agent_framework_azure_contentunderstanding
_context_provider.py	262	41	84%	81, 84, 202–205, 309–310, 312, 316–317, 320, 324, 409, 547, 551, 605, 655–656, 679, 681–684, 849, 853, 879–884, 886–891, 899, 908–909
packages/foundry_hosting/agent_framework_foundry_hosting
_invocations.py	46	0	100%
_responses.py	705	92	86%	155–156, 170, 173–174, 224, 239, 301, 357–360, 428, 510, 513, 538, 553, 579, 626–627, 966, 978, 1430–1431, 1435, 1480, 1482, 1484, 1486, 1490, 1498, 1501–1505, 1507, 1517, 1521, 1534, 1568–1573, 1577–1578, 1586–1592, 1622–1623, 1625–1626, 1628, 1633, 1641–1642, 1644, 1649–1653, 1655, 1662–1663, 1665–1666, 1672, 1674–1678, 1688, 1694, 1718, 1724, 1730, 1732, 1734–1737, 1745, 1747
_state_store.py	124	0	100%
TOTAL	45910	4253	90%

Python Unit Test Overview

Tests	Skipped	Failures	Errors	Time
9351	36 💤	0 ❌	0 🔥	2m 30s ⏱️