CALENDAR API MODES
==================

Default external client mode:
	/calendar_visual_demo/api.php?calendar=antagon&dt=2015-12-31%2023:45:00%20UTC

This now returns a minimal packet:
	- converted date data
	- active zodiac data
	- live body positions
	- display helpers
	- clamp metadata for myth-floor handling

Full internal/debug bootstrap mode:
	/calendar_visual_demo/api.php?calendar=antagon&dt=2015-12-31%2023:45:00%20UTC&mode=full

Gregorian floor clamp:
	- any request earlier than 1986-08-31 00:00:00 UTC is clamped up to that floor
	- payload.requested_input keeps the caller's original request
	- payload.input is the effective clamped date actually used
	- payload.input_was_clamped tells you whether the floor fired
	- payload.input_floor tells you the active floor value

The demo UI now requests mode=full so the page keeps working.
Outside callers should use the default mode unless they explicitly need the full merged definition dump.
