Generate Pydantic models with appwrite types -l python #2073

Tracks PR #2072.

Plan

Goal: Let appwrite types -l python (and auto in a Python project) emit a single appwrite_types.py of Pydantic models and (str, Enum) types so the Python SDK can take model_type on row reads. Fixes appwrite/sdk-for-cli#188.

What changes (PR #2072):

• templates/cli/internal/typegen/python.go (new): Python emitter — one module of pydantic.BaseModel subclasses, aliases for non-identifiers, Union[Related, str] for relationships, Black-clean layout.
• templates/cli/internal/cmd/types.go: registers python plus aliases py / python3.
• templates/cli/internal/typegen/language.go: auto-detect also treats setup.py as a Python marker.
• src/SDK/Language/CLI.php: copies the new emitter and Python goldens into the generated CLI.
• Tests and CI: golden files under templates/cli/internal/typegen/testdata/python.*, command/detection tests, and a validation.yml step that runs Black, mypy --strict, and import on the goldens.

Remaining steps:

1. Review and merge feat(cli): generate Pydantic models with appwrite types -l python #2072.
2. Ship in the next CLI release (regenerate appwrite/sdk-for-cli) and close 🚀 Enhancement: Types support for Python sdk-for-cli#188.
3. Mention -l python / auto-detect in the CLI docs and changelog for types.

Done when:

• feat(cli): generate Pydantic models with appwrite types -l python #2072 merged with checks green
• Released in a CLI version and 🚀 Enhancement: Types support for Python sdk-for-cli#188 closed