epic(cardshed): MVP — hot-seat browser (PRP 3 §A, M1–M17)

[w7-mgfcode]

Epic — CARD SHED MVP (hot-seat browser)

Tracks execution of PRPs/cardshed-03-experience-prp.md §A — 17 milestones M1–M17 covering scaffold → design-system → playable hot-seat → polish → analytics + filler bot → shipping gate. Decomposed into 8 logically-grouped sub-issues that preserve PRP-3 milestone identity in their bodies while keeping the umbrella checklist scannable.

Source of truth: PRPs/cardshed-03-experience-prp.md §A (lines 694–1074).
Locked decisions: PRPs/cardshed-01-blueprint.md (TS + React + Vite + Tailwind v4 + Radix + framer-motion + Zustand + TanStack Query + Immer; Rust+Axum server deferred to a later epic).
Pre-MVP shipped: apps/core/ (PRP 2, #139, 82/82 tests green) + @lab/ll-CARDSHED/ stack contract (#143/#145).

Sub-issues (M1→M17 order)

• feat(cardshed): scaffold apps/ui + design system (M1+M2) #148 — scaffold apps/ui + design system (M1 + M2)
• feat(cardshed): pre-match screens — MainMenu + PlayerSetup (M3+M4) #149 — pre-match screens — MainMenu + PlayerSetup (M3 + M4)
• feat(cardshed): table render + privacy splash (M5+M6) #147 — table render + privacy splash (M5 + M6)
• feat(cardshed): attack + defense + phase transitions (M7+M8+M9) #152 — attack + defense + phase transitions (M7 + M8 + M9)
• feat(cardshed): round/match results + settings + rules help (M10+M11) #150 — round/match results + settings + rules help (M10 + M11)
• feat(cardshed): a11y + responsive + juice (M12+M13+M14) #154 — a11y + responsive + juice (M12 + M13 + M14)
• feat(cardshed): analytics + Level-0 bot (M15+M16) #151 — analytics + Level-0 bot (M15 + M16)
• feat(cardshed): MVP shipping gate (M17) #153 — MVP shipping gate (M17)

Note: the issue numbers are not sequential because the 8 sub-issues were opened in parallel and won numbers in a race. M-order is preserved by the list above and by the native sub-issue chain.

Done-when

• All 8 sub-issues closed
• npm run test / typecheck / lint all green in @lab/ll-CARDSHED/apps/ui/
• npx playwright test full-round e2e green
• agent-browser dogfood-output captured for every milestone (per .claude/rules/ui-design-pipeline.md)
• 4 humans can complete a full hot-seat round on one device

Out of scope (separate epics later)

• Online multiplayer (PRP 3 §C + §A M14+)
• Bot Levels 1 & 2 (PRP 3 §E — MCTS information-set)
• Analytics dashboard / balance harness beyond MVP slice (PRP 3 §D)
• Multi-round match semantics (PRP 3 NEW T9 — UI design system foundation (Tailwind + Stitch + tokens) #9 — deferred post-MVP)
• Capacitor native shell

Process

• One PR per sub-issue. Per-sub-issue PRs may bundle their constituent Mn's or split further as judgment dictates.
• Every UI-changing PR has dogfood-output/<UTC>/<milestone>/ evidence per .claude/rules/ui-design-pipeline.md — non-negotiable.
• Every PR commit references its sub-issue #N per .claude/rules/commit-format.md.