Python: replace pre-commit with prek, add PEP 723 script deps, clean up dev dependencies (#3748)

* python: replace pre-commit with prek, add PEP 723 script deps, clean up dev dependencies

- Replace pre-commit with prek (Rust-native, faster pre-commit alternative)
- Move supported hooks to repo: builtin for zero-clone speed
- Add new builtin hooks: trailing-whitespace, check-merge-conflict, detect-private-key, check-added-large-files
- Update all hook versions to latest (pre-commit-hooks v6, pyupgrade v3.21.2, bandit 1.9.3, uv-pre-commit 0.10.0)
- Add PEP 723 inline script metadata to 34 samples with external deps
- Remove autogen-agentchat/autogen-ext from dev deps (now declared per-sample)
- Remove unused dev deps: pytest-env, tomli-w
- Add agent-framework-core>=1.0.0b260130 lower bound to all 21 packages
- Update CI workflow to use j178/prek-action
- Update docs: DEV_SETUP.md, AGENTS.md, CODING_STANDARD.md, SAMPLE_GUIDELINES.md

* updated lock

* python: fix prek config paths for local execution and CI workflow

Remove global 'files: ^python/' filter and strip python/ prefix from all path patterns in .pre-commit-config.yaml so prek finds files when run from the python/ directory. Update CI workflow to use --cd python instead of --config path. Include trailing whitespace fixes and dev dependency cleanup.

* python: move helper scripts to scripts/ folder and exclude from checks

* python: exclude AGENTS.md from prek markdown code lint

* python: exclude AGENTS.md and azure_ai_search sample from markdown lint

* fix m365 sample

* python: ignore CPY rule for samples with PEP 723 headers

* fix in dev_setup

* python: replace aiofiles with regular open in samples

* python: suppress reportUnusedImport in markdown code block checker

* python: use samples pyright config for markdown code block checker

Write a temp pyrightconfig.json matching pyrightconfig.samples.json rules (typeCheckingMode=off, only reportMissingImports and reportAttributeAccessIssue). Filter output to only fail on these rules since syntax-level errors (top-level await, undefined vars) are expected in README documentation snippets.

* python: use markdown-code-lint with fixed globs instead of prek file list

The prek-markdown-code-lint task received all changed files including non-README markdown and files with pre-existing broken imports. Replace with the standard markdown-code-lint task which uses the correct glob patterns (README.md, packages/**/README.md, samples/**/*.md).

* python: exclude READMEs with pre-existing broken imports from markdown lint

* python: fix broken README code snippets instead of excluding them

- ag-ui: replace TextContent (removed) with content.type == 'text'
- durabletask: fix import path to durabletask.worker.TaskHubGrpcWorker
- orchestrations: use constructor params instead of .participants() method
- observability: mark deprecated code blocks as plain text, filter
  reportMissingImports to agent_framework modules only
- remove README excludes from markdown-code-lint task

* add revision to gaia download

* feat(python): parallelize checks across packages

Run (package × task) cross-product in parallel using ThreadPoolExecutor
and subprocesses. Key changes:

- Add scripts/task_runner.py with shared parallel execution engine
- Update run_tasks_in_packages_if_exists.py to accept multiple tasks
- Update run_tasks_in_changed_packages.py with --files flag and parallel support
- Add check-packages poe task (fmt+lint+pyright+mypy in parallel)
- Add prek-markdown-code-lint and prek-samples-check with change detection
- Split CI code quality workflow into parallel prek and mypy jobs
- Update DEV_SETUP.md to document new parallel behavior

Core package changes still trigger checks on all packages.

* feat(ci): split code quality into 4 parallel jobs

Split the single prek job into parallel jobs:
- pre-commit-hooks: lightweight hooks (SKIP=poe-check)
- package-checks: fmt/lint/pyright/mypy via check-packages
- samples-markdown: samples-lint, samples-syntax, markdown-code-lint
- mypy: change-detected mypy checks

All 4 jobs run concurrently (×2 Python versions = 8 runners).

* feat(ci): use only Python 3.10 for code quality checks

* refactor(python): add future annotations and remove quoted types

Add `from __future__ import annotations` to 93 package files that
used quoted string annotations, then run pyupgrade --py310-plus to
remove the now-unnecessary quotes.

Fixes https://github.com/microsoft/agent-framework/issues/3578

python/packages/ollama/README.md

@@ -10,4 +10,4 @@ and see the [README](https://github.com/microsoft/agent-framework/tree/main/pyth
 
 # Run samples with the Ollama Conector
 
-You can find samples how to run the connector under the [Getting_started] (./getting_started/README.md) folder 
+You can find samples how to run the connector under the [Getting_started] (./getting_started/README.md) folder

python/packages/ollama/agent_framework_ollama/_chat_client.py

@@ -1,5 +1,7 @@
 # Copyright (c) Microsoft. All rights reserved.
 
+from __future__ import annotations
+
 import json
 import sys
 from collections.abc import (

python/packages/ollama/pyproject.toml

@@ -23,7 +23,7 @@ classifiers = [
   "Typing :: Typed",
 ]
 dependencies = [
-    "agent-framework-core",
+    "agent-framework-core>=1.0.0b260130",
     "ollama >= 0.5.3",
 ]
 

python/packages/ollama/tests/conftest.py

@@ -1,47 +0,0 @@
-# Copyright (c) Microsoft. All rights reserved.
-from typing import Any
-
-from agent_framework import ChatMessage
-from pytest import fixture
-
-
-# region: Connector Settings fixtures
-@fixture
-def exclude_list(request: Any) -> list[str]:
-    """Fixture that returns a list of environment variables to exclude."""
-    return request.param if hasattr(request, "param") else []
-
-
-@fixture
-def override_env_param_dict(request: Any) -> dict[str, str]:
-    """Fixture that returns a dict of environment variables to override."""
-    return request.param if hasattr(request, "param") else {}
-
-
-# These two fixtures are used for multiple things, also non-connector tests
-@fixture()
-def ollama_unit_test_env(monkeypatch, exclude_list, override_env_param_dict):  # type: ignore
-    """Fixture to set environment variables for OllamaSettings."""
-
-    if exclude_list is None:
-        exclude_list = []
-
-    if override_env_param_dict is None:
-        override_env_param_dict = {}
-
-    env_vars = {"OLLAMA_HOST": "http://localhost:12345", "OLLAMA_MODEL_ID": "test"}
-
-    env_vars.update(override_env_param_dict)  # type: ignore
-
-    for key, value in env_vars.items():
-        if key in exclude_list:
-            monkeypatch.delenv(key, raising=False)  # type: ignore
-            continue
-        monkeypatch.setenv(key, value)  # type: ignore
-
-    return env_vars
-
-
-@fixture
-def chat_history() -> list[ChatMessage]:
-    return []

python/packages/ollama/tests/test_ollama_chat_client.py

@@ -2,6 +2,7 @@
 
 import os
 from collections.abc import AsyncIterable
+from typing import Any
 from unittest.mock import AsyncMock, MagicMock, patch
 
 import pytest
@@ -23,6 +24,7 @@ from ollama import AsyncClient
 from ollama._types import ChatResponse as OllamaChatResponse
 from ollama._types import Message as OllamaMessage
 from openai import AsyncStream
+from pytest import fixture
 
 from agent_framework_ollama import OllamaChatClient
 
@@ -37,7 +39,49 @@ skip_if_azure_integration_tests_disabled = pytest.mark.skipif(
 )
 
 
-@pytest.fixture
+# region: Connector Settings fixtures
+@fixture
+def exclude_list(request: Any) -> list[str]:
+    """Fixture that returns a list of environment variables to exclude."""
+    return request.param if hasattr(request, "param") else []
+
+
+@fixture
+def override_env_param_dict(request: Any) -> dict[str, str]:
+    """Fixture that returns a dict of environment variables to override."""
+    return request.param if hasattr(request, "param") else {}
+
+
+# These two fixtures are used for multiple things, also non-connector tests
+@fixture()
+def ollama_unit_test_env(monkeypatch, exclude_list, override_env_param_dict):  # type: ignore
+    """Fixture to set environment variables for OllamaSettings."""
+
+    if exclude_list is None:
+        exclude_list = []
+
+    if override_env_param_dict is None:
+        override_env_param_dict = {}
+
+    env_vars = {"OLLAMA_HOST": "http://localhost:12345", "OLLAMA_MODEL_ID": "test"}
+
+    env_vars.update(override_env_param_dict)  # type: ignore
+
+    for key, value in env_vars.items():
+        if key in exclude_list:
+            monkeypatch.delenv(key, raising=False)  # type: ignore
+            continue
+        monkeypatch.setenv(key, value)  # type: ignore
+
+    return env_vars
+
+
+@fixture
+def chat_history() -> list[ChatMessage]:
+    return []
+
+
+@fixture
 def mock_streaming_chat_completion_response() -> AsyncStream[OllamaChatResponse]:
     response = OllamaChatResponse(
         message=OllamaMessage(content="test", role="assistant"),
@@ -48,7 +92,7 @@ def mock_streaming_chat_completion_response() -> AsyncStream[OllamaChatResponse]
     return stream
 
 
-@pytest.fixture
+@fixture
 def mock_streaming_chat_completion_response_reasoning() -> AsyncStream[OllamaChatResponse]:
     response = OllamaChatResponse(
         message=OllamaMessage(thinking="test", role="assistant"),
@@ -59,7 +103,7 @@ def mock_streaming_chat_completion_response_reasoning() -> AsyncStream[OllamaCha
     return stream
 
 
-@pytest.fixture
+@fixture
 def mock_chat_completion_response() -> OllamaChatResponse:
     return OllamaChatResponse(
         message=OllamaMessage(content="test", role="assistant"),
@@ -70,7 +114,7 @@ def mock_chat_completion_response() -> OllamaChatResponse:
     )
 
 
-@pytest.fixture
+@fixture
 def mock_chat_completion_response_reasoning() -> OllamaChatResponse:
     return OllamaChatResponse(
         message=OllamaMessage(thinking="test", role="assistant"),
@@ -81,7 +125,7 @@ def mock_chat_completion_response_reasoning() -> OllamaChatResponse:
     )
 
 
-@pytest.fixture
+@fixture
 def mock_streaming_chat_completion_tool_call() -> AsyncStream[OllamaChatResponse]:
     ollama_tool_call = OllamaChatResponse(
         message=OllamaMessage(
@@ -96,7 +140,7 @@ def mock_streaming_chat_completion_tool_call() -> AsyncStream[OllamaChatResponse
     return stream
 
 
-@pytest.fixture
+@fixture
 def mock_chat_completion_tool_call() -> OllamaChatResponse:
     return OllamaChatResponse(
         message=OllamaMessage(