Implement Continuation Token Pagination

[fredvisser]

Fixes DFF config list pagination behavior and implements continuation tokens across all SystemLink CLI services

Key Changes:

• DFF Service: Added _query_all_configurations(), _query_all_groups(), _query_all_fields() with continuation token pagination, replacing hardcoded Take=1000
• Templates/Workflows: Added _query_all_templates() and _query_all_workflows() with continuation token support
• Notebook Service: Enhanced _query_notebooks_http() with proper continuation token pagination
• Workspace Utils: Updated helper functions to use continuation tokens for workspace filtering
• User Service: Improved existing continuation token implementation

Benefits:

• Better memory efficiency with smaller page sizes (100-500 vs 1000)
• Improved scalability for workspaces with thousands of items
• Consistent pagination patterns across all services
• Maintains backward compatibility

Services Updated:

✅ Dynamic Form Fields, Templates, Workflows, Notebooks, User management, Workspace utilities
❌ Auth-mapping APIs (only support skip/take pagination)

[Copilot]

Pull Request Overview

This PR implements continuation token pagination across SystemLink CLI services to replace hardcoded Take=1000 parameters with proper pagination. The change improves memory efficiency and scalability for workspaces with thousands of items while maintaining backward compatibility.

• Replaces hardcoded large take values (1000) with continuation token pagination using smaller page sizes (100-500)
• Adds new helper functions _query_all_* for each service to handle continuation token logic
• Updates workspace utilities and test mocks to support filtered responses with the new pagination approach

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
slcli/dff_click.py	Added continuation token pagination for DFF configurations, groups, and fields with _query_all_* functions
slcli/templates_click.py	Implemented _query_all_templates() with continuation token support and updated list command
slcli/workflows_click.py	Added _query_all_workflows() function with continuation token pagination
slcli/notebook_click.py	Enhanced _query_notebooks_http() to use continuation token pagination instead of single large request
slcli/user_click.py	Improved existing continuation token implementation with proper filtering and pagination logic
slcli/workspace_click.py	Updated workspace template/workflow queries to use continuation token pagination
slcli/universal_handlers.py	Added FilteredResponse class to support mock responses with pagination results
tests/unit/test_templates_click.py	Updated test mock to handle workspace filtering in paginated responses
.github/copilot-instructions.md	Added HTTP API documentation guidelines and OpenAPI specification references