Python: chore(python): improve dependency range automation (#4343)

* chore(python): improve dependency range automation

- tighten dependency bounds and coding standards guidance\n- add dependency range validation workflow, reporting, and issue automation\n- update related tests and dependency pins for compatibility

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* updated text and pyarrow

* new lock

* fixed workflow

* updated deps

* fix tiktoken

* chore(python): refine dependency validation workflows

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* docs(python): add high-level dependency validation comments

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* WIP

* added additional comments and excludes

* added dev dependency handling and workflow and updates to package ranges

* added readme and simplified commands

* fix markers

* chore(python): address dependency review feedback

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Tighten dependency bounds, remove stale overrides, restore Python 3.10 support

- Apply dependency bound policy across all packages: stable >=1.0 deps use
  >=floor,<next_major; pre-1.0/prerelease deps use validated hard-bounded ranges
- Remove stale root tool.uv.override-dependencies (uvicorn, websockets, grpcio)
- Lower github_copilot requires-python to >=3.10 with github-copilot-sdk gated
  behind python_version >= 3.11 marker; import raises ImportError on 3.10
- Skip github_copilot pyright/mypy/test tasks on Python <3.11
- Use version-conditional pyrightconfig for samples on Python 3.10
- Add compatibility fix in core responses client for older openai typed dicts
- Normalize uv.lock prerelease mode and refresh dev dependencies
- Update CODING_STANDARD.md, DEV_SETUP.md, and package management skill docs

Closes #902

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* small tweaks

* add note in workflow

* fix workflows and several versions

* fix duplicate

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

python/packages/declarative/pyproject.toml

@@ -23,12 +23,12 @@ classifiers = [
 ]
 dependencies = [
     "agent-framework-core>=1.0.0rc4",
-    "powerfx>=0.0.31; python_version < '3.14'",
+    "powerfx>=0.0.32,<0.0.35; python_version < '3.14'",
     "pyyaml>=6.0,<7.0",
 ]
 [dependency-groups]
 dev = [
-    "types-PyYaml"
+    "types-PyYaml==6.0.12.20250915"
 ]
 
 [tool.uv]
@@ -94,7 +94,7 @@ include = "../../shared_tasks.toml"
 
 [tool.poe.tasks]
 mypy = "mypy --config-file $POE_ROOT/pyproject.toml agent_framework_declarative"
-test = "pytest -m \"not integration\" --cov=agent_framework_declarative --cov-report=term-missing:skip-covered tests"
+test = 'pytest -m "not integration" --cov=agent_framework_declarative --cov-report=term-missing:skip-covered tests'
 
 [build-system]
 requires = ["flit-core >= 3.11,<4.0"]