[JOY (JOY)]

Promote dev to main.

• fix(web): keep en and cs catalog pages inside a 320px screen (#1082) #1083 fix(web): keep en and cs catalog pages inside a 320px screen (fix(web): catalog sort toggle overflows a 320px screen in en and cs #1082)
• fix(web): keep the Czech leaderboard and merchant header inside 320px (#1084) #1085 fix(web): keep the Czech leaderboard and merchant header inside 320px (fix(web): Czech leaderboard and merchant header overflow a 320px screen #1084)
• fix(a11y): mark pressed toggles with the system highlight in forced colors (#1086) #1087 fix(a11y): mark pressed toggles with the system highlight in forced colors (a11y: pressed toggles are indistinguishable in forced-colors mode #1086)
• refactor(shared-data): one source for the bait-price rule and price floor #1091 refactor(shared-data): one source for the bait-price rule and price floor

Merge with a merge commit, never squash (Docs/Resources/RELEASE.md).

---

📌 TL;DR

This PR refactors price validation logic into a shared, browser-safe @repo/shared-data/rules package to eliminate duplication and prevent heavy dependencies (zod/Supabase) from leaking into client bundles. It also fixes mobile layout overflow issues for long Czech/Vietnamese labels and ensures accessibility compliance for forced-color modes.

🎯 Type of Change

• 🚀 New feature
• 🐛 Bugfix
• 🧹 Refactor
• ⚡ Performance
• 📚 Documentation
• ⚙️ CI / Configuration

🔍 Changes Walkthrough

File	Summary of Changes
packages/shared-data/src/rules/index.ts	New: Entry point for the shared rules package, exporting price limits and plausibility checks.
packages/shared-data/src/rules/price-limits.ts	New: Defines MAX_VALID_VND_PRICE (1B VND) as a single source of truth.
packages/shared-data/src/rules/listing-price-floor.ts	New: Extracts earbuds/device price floor logic and regex into a reusable minimumListingPriceVnd function.
packages/shared-data/src/rules/offer-plausibility.ts	Moved: Relocated from apps/web/src/lib/ to shared package; now imports MAX_VALID_VND_PRICE from local rules.
packages/shared-data/src/schemas/specs.schema.ts	Refactor: Re-exports MAX_VALID_VND_PRICE from rules instead of defining it locally, ensuring schema and rules stay in sync.
packages/shared-data/package.json	Config: Adds ./rules subpath export to allow importing rules without pulling in the main package (which contains zod/Supabase).
apps/web/src/lib/offer-plausibility.ts	Removed: Logic moved to shared package.
apps/web/src/lib/rate-api.ts	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/server/rate/extension.ts	Refactor: Replaces local price floor constants/regex with minimumListingPriceVnd from shared rules.
apps/web/src/server/rate/api-handler.ts	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/server/rate/deals.ts	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/app/[locale]/smartphones/[slug]/page.tsx	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/components/inspect/DeepInspectWorkspace.tsx	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/components/leaderboard/ProductOffersExplorer.tsx	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/app/[locale]/smartphones/page.tsx	Fix: Adds mw-100 to dropdown container to prevent horizontal overflow on mobile.
apps/web/src/app/[locale]/merchants/[id]/page.tsx	Fix: Adds flex-wrap to merchant rating spans to prevent text overflow on narrow screens.
apps/web/src/app/style/scss/style.scss	Fix: Allows wrapping for long sort labels (white-space: normal) to prevent horizontal scroll on mobile.
apps/web/src/app/style/scss/_custom.scss	Fix: Adds forced-colors media query styles to ensure pressed buttons remain visible in Windows High Contrast mode.
apps/web/src/components/elementary/LocaleSwitcher.tsx	Fix: Reduces padding in compact mode to accommodate wider locale labels (EN/CS) without overflowing 320px screens.
apps/web/locales/cs.json	Fix: Changes "falešné/spamové" to "falešné či spamové" to allow line breaks in the leaderboard badge.
apps/web/e2e/reflow-contrast.spec.ts	Test: Adds E2E tests for mobile reflow and forced-color contrast on specific pages.
apps/web/e2e/selector-state.spec.ts	Test: Adds E2E tests to verify pressed category buttons are distinguishable in forced-color mode.
apps/web/src/lib/__tests__/leaderboard-badge-copy.test.ts	Test: New unit test ensuring locale strings for the leaderboard badge do not contain unbreakable words >12 chars.
apps/web/src/lib/__tests__/offer-plausibility.test.ts	Refactor: Updates imports to use @repo/shared-data/rules.
apps/web/src/server/rate/__tests__/core-rate-architecture.test.ts	Refactor: Updates imports to use @repo/shared-data/rules.
apps/extension/src/test-extension-pipeline.ts	Refactor: Updates imports to use @repo/shared-data/rules.
packages/shared-data/src/__tests__/shared-data.test.ts	Test: Adds comprehensive tests for the new rules subpath, verifying browser-safety (no zod/Supabase imports) and logic correctness.
apps/web/package.json	Config: Adds leaderboard-badge-copy.test.ts to the test script.

📊 Architectural Flow

flowchart TD
    subgraph "Shared Package (@repo/shared-data)"
        direction TB
        RulesIndex["rules/index.ts"]
        PriceLimits["rules/price-limits.ts<br/>(MAX_VALID_VND_PRICE)"]
        Plausibility["rules/offer-plausibility.ts<br/>(plausibleOffers, etc.)"]
        Floor["rules/listing-price-floor.ts<br/>(minimumListingPriceVnd)"]
        Schemas["schemas/specs.schema.ts"]
        
        RulesIndex --> PriceLimits
        RulesIndex --> Plausibility
        RulesIndex --> Floor
        Plausibility --> PriceLimits
        Schemas --> PriceLimits
    end

    subgraph "Web App (apps/web)"
        direction TB
        ServerCode["Server Components / API Routes"]
        ClientCode["Client Components"]
        Tests["Unit / E2E Tests"]
        
        ServerCode -- "import" --> RulesIndex
        ClientCode -- "import" --> RulesIndex
        Tests -- "import" --> RulesIndex
    end

    subgraph "Extension (apps/extension)"
        ExtCode["Extension Logic"]
        ExtCode -- "import" --> RulesIndex
    end

    style RulesIndex fill:#e1f5fe,stroke:#01579b,stroke-width:2px
    style PriceLimits fill:#fff9c4,stroke:#fbc02d,stroke-width:2px

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