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refactor: strictNullChecks Phase 1 — 108 erreurs corrigées (issue #376) - #386

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refactor/issue-376-strict-nullchecks
Mar 22, 2026
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refactor/issue-376-strict-nullchecks

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Résumé

Active strictNullChecks: true dans tsconfig.app.json et corrige les 108 erreurs TypeScript résultantes.

noImplicitAny reste à false — c'est délibéré pour Phase 1.

Erreurs corrigées (par fichier)

Fichier Erreurs Correction appliquée
TreasureHuntCanvas.tsx 79 Rename canvas/ctx en variables typées non-null après guards — TS perd le narrowing dans les closures internes
PixelIcon.tsx 2 Suppression des clés dupliquées crown et skull dans ICON_MAP
bestiary.ts 2 Cast bomber.assets as BomberAssetRefs; as BestiaryBomber[] sur le .map()
heroVisualSystem.ts 1 Annotation explicite traits: HeroVisualTraits pour éviter l'élargissement string
useCloudSave.ts 7 Ajout xp à PlayerHeroRowExtended; as Rarity, as HeroFamilyId; double-cast as unknown as PlayerData; imports
useLeaderboard.ts 1 RPC args castés as never (RPC absent des types générés Supabase)
useMarketplace.ts 5 RPC args castés as never; as unknown as MarketplaceListing[]
animations.ts 2 as Variants sur le retour de pixelSlide (Framer Motion index signature)
Index.tsx 4 Boss | null pour boss; capture closure stageSnapshotBoss; ?? false pour optionals boolean
Profile.tsx 1 @ts-expect-error pour delete_user_account RPC non présent dans les types générés
WikiPage.tsx 5 .filter((a): a is NonNullable<...>) au lieu de .filter(Boolean)
ProgressionPage.tsx 1 ACHIEVEMENTS importé depuis @/game/achievements (pas @/game/types)

Total : 108 erreurs → 0 erreur

Validation

  • npx tsc --noEmit : 0 erreur
  • npm test : 246/246 tests passent
  • npm run build : build propre (0 erreur Vite/esbuild)

Notes

  • Aucun fichier de test modifié (src/test/ intact)
  • La PR PixelIcon.tsx corrige aussi un bug latent : les clés dupliquées causaient des comportements imprévisibles
  • Les as never sur les RPCs Supabase sont du code pré-existant — la solution propre serait de régénérer les types Supabase, mais c'est hors scope Phase 1

Closes #376

🤖 Generated with Claude Code

…(issue #376)

Enable `strictNullChecks: true` in tsconfig.app.json and fix all 108
resulting type errors across 12 files.

Changes by file:
- tsconfig.app.json: add strictNullChecks: true
- TreasureHuntCanvas.tsx: rename canvas/ctx to typed non-null vars for closure safety
- PixelIcon.tsx: remove duplicate keys 'crown' and 'skull' in ICON_MAP
- bestiary.ts: cast bomber.assets as BomberAssetRefs; add as BestiaryBomber[] on map()
- heroVisualSystem.ts: annotate traits as HeroVisualTraits to fix helmetStyle literal type
- useCloudSave.ts: add xp to PlayerHeroRowExtended; cast rarity as Rarity, family as
  HeroFamilyId; double-cast statsOnly as unknown as PlayerData; import Rarity, HeroFamilyId
- useLeaderboard.ts: cast RPC args as never to bypass missing Supabase type definition
- useMarketplace.ts: cast RPC args as never; cast data as unknown as MarketplaceListing[]
- animations.ts: cast pixelSlide return as Variants to fix Framer Motion index signature
- Index.tsx: type boss as Boss|null; capture stageSnapshot.boss for closure narrowing;
  fix storyFailed boolean|undefined with ?? false; import Boss from storyTypes
- Profile.tsx: add @ts-expect-error for delete_user_account RPC (absent from generated types)
- WikiPage.tsx: replace .filter(Boolean) with explicit type guard .filter((a): a is ...)

Result: tsc --noEmit 0 errors, 246/246 tests passing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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@thomasgermain93
thomasgermain93 merged commit 6971ca7 into main Mar 22, 2026
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github-actions Bot added a commit that referenced this pull request Mar 22, 2026
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