docs: keep the timeline face's design history, not its engineHEADmain

Six prototypes from the world-face work, kept as the record of how the design got to where it is. The first five are self-contained; prototype 6 and the option-A pages load the engine, so they read here but do not run here.

The engine stays out on purpose. It carries the list of places I travel to, with coordinates, and this repo is published — a design record is not worth publishing that for. The README says how to copy the modules in locally to run prototype 6, and gitignore keeps such a copy from being committed by accident.

Dropping the prototype test target with it: the engine and its tests now live in one place, so the suite runs once rather than twice over identical files.

1 files changed, 1 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index a08ddb5..f5b680b 100644
--- a/Makefile
+++ b/Makefile
@@ -54,6 +54,7 @@ deps:
 # because the dir names are hyphenated, so each suite is run explicitly.
 # Elisp suites (tests/*/test-*.el, ERT) run in the same pass so one green
 # `make test-unit` covers the whole fast tier.
+
 test-unit:
 	@fail=0; \
 	for t in tests/*/test_*.py; do \