- Add 'section_header' to VALID_STEP_TYPES in backend validation so
procedural flows with section headers can be published
- Replace procedural editor's inline tag input with TagInput component
(supports autocomplete, Tab, comma, semicolon, and paste splitting)
- Add semicolon delimiter support to TagInput component
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds a new "procedural" tree type for linear step-by-step project workflows
(domain controller setup, M365 onboarding, VPN config, etc). Includes intake
form builder, two-panel step navigation, variable resolution, procedural
exports, 3 seed templates, and UI rename from "Trees" to "Flows".
Also archives 19 implemented plan docs and creates deferred features backlog.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
