CAIN-INV-1149: Developer experience content -- the hero quickstart and the docs hub

FAILING source compiles

Domain	GOVERNANCE_RUNTIME
Tier	ENGINEERING_INNOVATION
Source	`platform-gateway/devx.py`
Mapped tests ran	39
Passed / failed / errored	37 / 2 / 0
Compiles	yes

Mapped tests

tests/test_cain_teacher.py

tests/test_ecosystem_pages.py

Generated 2026-10-06T19:15:35Z from git unknown. This page is a republication of the run result; it is not an independent audit.

Same-project verification only. The tests are authored in this repository; no third party has reviewed or reproduced these results. VERIFIED means the mapped tests passed in this run, not that the mechanism is independently correct.