[SYNPY-1674]: Implement Form

[linglp]

Problem:

Implement the following endpoints:

• POST /form/group: https://rest-docs.synapse.org/rest/POST/form/group.html
• POST /form/data: https://rest-docs.synapse.org/rest/POST/form/data.html
• POST /form/data/list/reviewer: https://rest-docs.synapse.org/rest/POST/form/data/list/reviewer.html
• POST /form/data/list: https://rest-docs.synapse.org/rest/POST/form/data/list.html
• Add a helper function to download content of form data

[Copilot]

Pull request overview

This PR implements form-related functionality for the Synapse Python client, adding support for creating and managing FormGroup and FormData objects through new REST API endpoints.

Key Changes:

• Implements FormGroup and FormData models with synchronous and asynchronous support
• Adds API service functions for creating form groups, creating form data, listing form data (with reviewer mode), and downloading form data
• Provides comprehensive test coverage with both unit and integration tests

Reviewed changes

Copilot reviewed 17 out of 17 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
synapseclient/models/form.py	Main FormGroup and FormData model implementations with async/sync methods for create, list, and download operations
synapseclient/models/mixins/form.py	Core data structures including FormGroup, FormData, FormChangeRequest, FormSubmissionStatus, and StateEnum
synapseclient/models/protocols/form_protocol.py	Protocol definitions for FormGroup and FormData operations
synapseclient/api/form_services.py	API service layer implementing REST endpoints for form operations
synapseclient/models/mixins/__init__.py	Exports form-related mixins and enums
synapseclient/models/__init__.py	Exports FormGroup and FormData models
synapseclient/api/__init__.py	Exports form service functions
tests/unit/synapseclient/models/synchronous/unit_test_form.py	Unit tests for synchronous form operations
tests/unit/synapseclient/models/async/unit_test_form_async.py	Unit tests for asynchronous form operations
tests/unit/synapseclient/mixins/unit_test_form_mixin.py	Unit tests for form mixin data structures
tests/integration/synapseclient/models/synchronous/test_form.py	Integration tests for synchronous form operations
tests/integration/synapseclient/models/async/test_form_async.py	Integration tests for asynchronous form operations
mkdocs.yml	Documentation navigation configuration for form-related pages
docs/reference/experimental/sync/form.md	Synchronous API reference documentation
docs/reference/experimental/async/form.md	Asynchronous API reference documentation
docs/reference/experimental/mixins/form_group.md	FormGroup mixin documentation
docs/reference/experimental/mixins/form_data.md	FormData mixin documentation

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[philerooski]

@linglp The public methods look good. I requested a review from Copilot, but it doesn't always provide good suggestions so feel free to resolve any Copilot comments without making changes.

[Copilot]

Pull request overview

Copilot reviewed 17 out of 17 changed files in this pull request and generated 15 comments.

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[andrewelamb]

LGTM

[linglp]

Want to merge PR now after confirming the failed integration tests are working locally: https://sagebionetworks.jira.com/browse/DPE-1524