Projects cast review fixes:
- Pace the confirms: `save as` name and `new` now type, pause, then Enter as
separate steps, so the viewer can read them before they execute.
- Insert `show tables` at each phase (before save / after `new` / after load),
since the schema sidebar is hidden at 90 cols (ADR-0046) — the sequence now
reads "books -> no tables -> books" so the round-trip is followable.
STYLE.md: new "Cast pacing & clarity" guidelines (beat-before-submit; surface
state where the sidebar would). Handoff item 2: chase these up across the
existing casts.
- New projects cast: create → save as library → new (fresh) → load → navigate
the picker to the saved project (j, now possible via #24 vi-nav) → Enter
loads it, the table is restored. Runs under an isolated --data-dir so the
picker lists only this cast's projects.
- Turn on the demonstration overlay (--demo, #22 / ADR-0047) for ALL casts,
for a consistent viewer experience: special keys show a badge — e.g.
[ENTER], and [TAB] at the assistive-editor's completion moment, finally
making that keystroke visible. Plain j/k navigation stays unbadged, so the
picker navigation is not surfaced.
- Generator: per-cast `dataDir` (isolated data root) + default-on `--demo`
(opt out with demo:false). All 7 casts regenerated.
Convert projects.md → .mdx and embed. Build clean (26 pages). Visual playback
of all casts pending a tunnel check.