feat: api — add --paginate, --jq, --include, --input, --raw-field flags

[q-soriarty]

Missing flags (5 high priority)

Flag	Type	Description
--paginate	bool	Auto-paginate results
--jq	expression	Filter JSON output
--include	bool	Include HTTP headers in output
--input	file	Read body from file
--raw-field	strings	Non-JSON string field

All client-side implementation.

Source: flag parity analysis