v0.4.x — Composer UX/UI polish backlog (post-v0.3.9 smoke)

[thierryvm]

Items flagged by @Thierry during the first multi-network smoke on v0.3.9 (2026-05-11). Non-urgent — UX/UI polish, ship over v0.4.x patches.

Tracked items

1. Tooltip on ×3 button — clarify "Générer 3 variantes (éducatif · casual · percutant)". Currently the button is just `×3` with a `title` attr — easy to miss.
2. Loading spinner full-page during generation, not just on the button. The user is left wondering for 10-30s on a multi-network generation.
3. Modal for full model response when the JSON parse fails — the 200-char preview is sometimes truncated mid-sentence. Expose a "Voir la réponse complète" link that opens a scrollable dialog.
4. Brief input — auto-detect URLs and offer to switch to URL mode (avoid the `"Tu dois lire le contenu"` trap that causes empty-response failures).
5. Cost banner — show breakdown per network (`Instagram: $0.0201 · LinkedIn: $0.0201`) instead of just the total.
6. GroupResultPanel — keyboard navigation between member tabs (`Tab` / arrow keys).
7. Empty state improvement when no account is connected for a checked network — currently just a one-liner, could offer a "Connecter @network" CTA.
8. Cancel-mid-generation button — abort the parallel sidecar calls if the user changes their mind.
9. Last-used networks memory — restore the user's last multi-network selection on Composer open (currently always resets to single Instagram).
10. Sidecar warmup status indicator — small dot showing "sidecar prêt" vs "préchauffage" so the user knows the first generation will take ~500ms extra.

Priority

Triage at v0.4.0 planning — most are 1-2 line UI changes, a few (cancel, full-response modal, breakdown) need backend or sidecar tweaks.

Source

Live smoke session 2026-05-11 with @Cowork validating PRs #56–#61.