Turn the v0 todo row rename action into an editable generated form instead of a fixed submit value, and preserve validation/recovery behavior for blank titles. This keeps the beginner exemplar on generated form handles and user-visible recovery instead of hidden demo shortcuts.
req: examples/001
req: canonical_authoring/003
Make the canonical v0 todo flow use one TodoRow partial shape for initial list rendering and generated keyed append/replace/remove helpers. Teach hemx-build to treat collection hosts with keyed h-for children as keyed targets, so beginner templates can keep the DRY outer slot + child partial composition.
req: canonical_authoring/002
req: canonical_authoring/003
req: examples/004
req: list/001
Move the v0 keyed todo row effect payload from Rust format! HTML into a hemplate partial and require the generated slot append to carry an HTML payload.
req: html_safety/002
req: view/001