Lint: fix errors and remove unused variables

**Motivations:**
- Ensure lint config is not degraded and fix all lint errors for pousse workflow.

**Root causes:**
- Unused variables kept with _ prefix instead of removed (_row, _questReward, _i).
- getAnimalBlockOrigin had 5 parameters (max 4).
- use of continue statement (no-continue rule).

**Correctifs:**
- ESLint config verified; no eslint-disable in codebase.
- Removed unused variable _row (biome-rules); removed dead function _questReward (quests); removed unused map param _i (state.js).
- getAnimalBlockOrigin refactored to 4 params (pos object instead of x, y).
- Replaced continue with if (cell) block in normalizeLoadedCells (state.js).
- JSDoc param names aligned with _height, _y (biome-rules).

**Evolutions:**
- (none)

**Pages affectées:**
- web/js/biome-rules.js
- web/js/quests.js
- web/js/state.js
- web/js/placement.js

web/js/config.js

@@ -91,6 +91,11 @@ export const GameConfig = {
     BuildCost: 280,
     BaseUpgradeCost: 280,
     UpgradeGrowth: 1.55,
+    /** Opening hour (0-24). No new visitors outside [OpenHour, CloseHour). */
+    OpenHour: 8,
+    CloseHour: 20,
+    /** Max new visitors per real second at entry (spec: 1 visiteur/s). */
+    MaxEntryPerSecond: 1,
   },
 
   /** Nourriture: 7 niveaux, 5 animaux/unité. */
@@ -136,6 +141,13 @@ export const GameConfig = {
     BaseChance: 0.06,
   },
 
+  /** Death cause "seuls": animal dies if no same species in radius for too long. */
+  Animal: {
+    MinSameSpeciesInRadius: 1,
+    RadiusCells: 5,
+    MaxSecondsAlone: 300,
+  },
+
   Events: [],
 
   Visitor: {
@@ -146,35 +158,20 @@ export const GameConfig = {
     StagnationDecayPerMinute: 0.05,
     CityAttractionScale: 0.002,
     AnimalValueScale: 0.00015,
-    /** Seconds without any visitor on the cell before the animal disappears. */
     MaxSecondsWithoutVisit: 300,
-    /** Multiplier bonus per souvenir shop level applied to payment per visitor (e.g. 0.2 = +20% per shop). */
     SouvenirShopBonusPerShop: 0.2,
-    /** Chance per visitor to be a luxury guest (0–1). */
     LuxuryGuestChance: 0.08,
-    /** Entry payment multiplier for luxury guests. */
     LuxuryEntryMultiplier: 3,
-    /** Extra shop spending multiplier for luxury guests (applied on top of normal shop bonus). */
     LuxuryShopMultiplier: 2.5,
-    /** Attractivity: penalty per recent death (subtracted from score). */
     AttractivityDeathPenalty: 0.5,
-    /** Attractivity: bonus per birth (added to score). */
     AttractivityBirthBonus: 0.2,
-    /** Extra stay time per souvenir shop level (e.g. 0.15 = +15% per level). Uses Time.DayLengthSeconds for base 1 day. */
     StayMultiplierPerShopLevel: 0.15,
-    /** Extra stay time per distinct animal species (e.g. 0.02 = +2% per species). */
     StayMultiplierPerSpecies: 0.02,
-    /** Incident (soif, poubelle, banc, animal loin, photo): base chance per visitor per tick when not in wait phase. */
     IncidentChanceBase: 0.002,
-    /** Multiplier to incident chance when in wait phase (truck, sale pending, etc.). */
     IncidentChanceWaitMultiplier: 4,
-    /** Seconds before unresolved incident: visitor leaves and attractivity penalty applied. */
     IncidentTimeoutSeconds: 45,
-    /** Attractivity bonus when player resolves an incident. */
     IncidentResolveAttractivityBonus: 0.15,
-    /** Coin bonus when player resolves an incident. */
     IncidentResolveCoinBonus: 8,
-    /** Attractivity penalty when incident times out unresolved. */
     IncidentUnresolvedAttractivityPenalty: 0.2,
   },
 
@@ -183,17 +180,13 @@ export const GameConfig = {
     MaxLevel: 7,
     BaseUpgradeCost: 180,
     UpgradeGrowth: 1.5,
-    /** Seconds for a baby to become mature (divided by nursery level). */
     GrowthSecondsBase: 40,
-    /** Seconds a mature baby can wait without being placed before dying. */
     MaxSecondsMatureNotPlaced: 90,
   },
 
   /** Reproduction: delay between pair detection and baby birth; reduced by zoo score and biome/temp fit. */
   Reproduction: {
-    /** Base seconds until baby is born for an eligible pair. */
     BaseSeconds: 60,
-    /** Max Manhattan distance between blocks to count as adjacent (1 = edge-adjacent only). */
     MaxDistance: 1,
   },
 
@@ -209,6 +202,16 @@ export const GameConfig = {
     PhaseShift: 0,
   },
 
+  /** 4 seasons: spring, summer, autumn, winter. Each season lasts DaysPerSeason game days. */
+  Season: {
+    DaysPerSeason: 7,
+    TemperatureModifier: { spring: 0, summer: 10, autumn: -2, winter: -15 },
+    VisitorMultiplier: { spring: 1, summer: 1.5, autumn: 0.8, winter: 0.6 },
+    ReproductionBonus: { spring: 0.2, summer: 0, autumn: 0, winter: -0.5 },
+    /** Billeterie: summer +20% ticket price, winter -10%. */
+    TicketPriceMultiplier: { spring: 1, summer: 1.2, autumn: 1, winter: 0.9 },
+  },
+
   Weather: {
     ChangeIntervalSeconds: 45,
     RainChance: 0.25,
@@ -228,9 +231,7 @@ export const GameConfig = {
 
   /** Phase 10: sale listings (baby/animal on truck → world map). Bébé invendu meurt après ce délai. */
   Sale: {
-    /** Seconds until a listing expires if not sold. After expiry, baby dies (deathCountRecent). */
     ListingDurationSeconds: 3600,
-    /** Default asking price for a baby or animal put on sale. */
     DefaultPrice: 50,
   },
 };