feat: 新增多语言README并优化文档结构

新增德语、俄语、韩语、繁体中文多语言README，英文与简体中文README同步优化，统一下载链接与徽章样式，完善多语言入口。提升国际化支持与文档可读性。

src/logic/oreDepositLogic.ts

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+/**
+ * 矿脉储量逻辑
+ * 处理星球矿脉储量的生成、消耗和效率计算
+ */
+
+import type { Planet, OreDeposits } from '@/types/game'
+import { ORE_DEPOSIT_CONFIG } from '@/config/gameConfig'
+
+/**
+ * 根据星球位置生成初始矿脉储量
+ */
+export const generateOreDeposits = (position: { galaxy: number; system: number; position: number }): OreDeposits => {
+  const { BASE_DEPOSITS, POSITION_MULTIPLIERS, GALAXY_MULTIPLIER, RANDOM_VARIANCE } = ORE_DEPOSIT_CONFIG
+
+  // 位置索引 (0-14)
+  const posIndex = Math.max(0, Math.min(14, position.position - 1))
+
+  // 银河系加成 (银河系1为基础，每增加1个银河系增加5%)
+  const galaxyBonus = 1 + (position.galaxy - 1) * GALAXY_MULTIPLIER
+
+  // 计算每种资源的储量
+  const calculateDeposit = (baseAmount: number, positionMultiplier: number): number => {
+    // 基础储量 × 位置系数 × 银河系加成
+    const baseDeposit = baseAmount * positionMultiplier * galaxyBonus
+
+    // 添加随机浮动 (±RANDOM_VARIANCE)
+    const variance = 1 + (Math.random() * 2 - 1) * RANDOM_VARIANCE
+    return Math.floor(baseDeposit * variance)
+  }
+
+  const metalDeposit = calculateDeposit(BASE_DEPOSITS.metal, POSITION_MULTIPLIERS.metal[posIndex] ?? 1)
+  const crystalDeposit = calculateDeposit(BASE_DEPOSITS.crystal, POSITION_MULTIPLIERS.crystal[posIndex] ?? 1)
+  const deuteriumDeposit = calculateDeposit(BASE_DEPOSITS.deuterium, POSITION_MULTIPLIERS.deuterium[posIndex] ?? 1)
+
+  return {
+    metal: metalDeposit,
+    crystal: crystalDeposit,
+    deuterium: deuteriumDeposit,
+    initialMetal: metalDeposit,
+    initialCrystal: crystalDeposit,
+    initialDeuterium: deuteriumDeposit
+  }
+}
+
+/**
+ * 计算矿脉储量对产量的效率系数
+ * 当储量低于衰减阈值时，产量会线性下降
+ * @returns 0-1 之间的效率系数
+ */
+export const calculateDepositEfficiency = (deposits: OreDeposits | undefined, resourceType: 'metal' | 'crystal' | 'deuterium'): number => {
+  if (!deposits) return 1 // 没有储量数据时返回满效率（向后兼容）
+
+  const { DECAY_START_THRESHOLD } = ORE_DEPOSIT_CONFIG
+
+  const currentDeposit = deposits[resourceType]
+  const initialDeposit =
+    resourceType === 'metal' ? deposits.initialMetal : resourceType === 'crystal' ? deposits.initialCrystal : deposits.initialDeuterium
+
+  // 如果初始储量为0，返回0（避免除以0）
+  if (initialDeposit <= 0) return 0
+
+  // 计算剩余百分比
+  const remainingPercentage = currentDeposit / initialDeposit
+
+  // 如果已耗尽，返回0
+  if (currentDeposit <= 0) return 0
+
+  // 如果高于衰减阈值，返回满效率
+  if (remainingPercentage >= DECAY_START_THRESHOLD) return 1
+
+  // 在衰减阈值以下，线性衰减
+  // 从 DECAY_START_THRESHOLD 到 0，效率从 1 降到 0
+  return remainingPercentage / DECAY_START_THRESHOLD
+}
+
+/**
+ * 消耗矿脉储量
+ * @param deposits 矿脉储量对象
+ * @param resourceType 资源类型
+ * @param amount 要消耗的量
+ * @returns 实际消耗的量（不会超过剩余储量）
+ */
+export const consumeDeposit = (deposits: OreDeposits, resourceType: 'metal' | 'crystal' | 'deuterium', amount: number): number => {
+  const currentDeposit = deposits[resourceType]
+  const actualConsumption = Math.min(currentDeposit, amount)
+
+  deposits[resourceType] = Math.max(0, currentDeposit - actualConsumption)
+
+  return actualConsumption
+}
+
+/**
+ * 获取矿脉剩余百分比
+ */
+export const getDepositPercentage = (deposits: OreDeposits | undefined, resourceType: 'metal' | 'crystal' | 'deuterium'): number => {
+  if (!deposits) return 100
+
+  const currentDeposit = deposits[resourceType]
+  const initialDeposit =
+    resourceType === 'metal' ? deposits.initialMetal : resourceType === 'crystal' ? deposits.initialCrystal : deposits.initialDeuterium
+
+  if (initialDeposit <= 0) return 0
+
+  return (currentDeposit / initialDeposit) * 100
+}
+
+/**
+ * 检查矿脉是否处于警告状态（低于警告阈值）
+ */
+export const isDepositWarning = (deposits: OreDeposits | undefined, resourceType: 'metal' | 'crystal' | 'deuterium'): boolean => {
+  if (!deposits) return false
+
+  const percentage = getDepositPercentage(deposits, resourceType)
+  return percentage < ORE_DEPOSIT_CONFIG.WARNING_THRESHOLD * 100 && percentage > 0
+}
+
+/**
+ * 检查矿脉是否已耗尽
+ */
+export const isDepositDepleted = (deposits: OreDeposits | undefined, resourceType: 'metal' | 'crystal' | 'deuterium'): boolean => {
+  if (!deposits) return false
+  return deposits[resourceType] <= 0
+}
+
+/**
+ * 为现有星球迁移/初始化矿脉储量
+ * 如果星球没有矿脉数据，则生成新的储量
+ */
+export const migrateOreDeposits = (planet: Planet): void => {
+  // 月球不需要矿脉（没有采矿建筑）
+  if (planet.isMoon) return
+
+  if (!planet.oreDeposits) {
+    planet.oreDeposits = generateOreDeposits(planet.position)
+  }
+}
+
+/**
+ * 计算预计耗尽时间（小时）
+ * @param deposits 矿脉储量
+ * @param resourceType 资源类型
+ * @param productionPerHour 每小时产量
+ * @returns 预计耗尽时间（小时），如果产量为0则返回Infinity
+ */
+export const calculateDepletionTime = (
+  deposits: OreDeposits | undefined,
+  resourceType: 'metal' | 'crystal' | 'deuterium',
+  productionPerHour: number
+): number => {
+  if (!deposits || productionPerHour <= 0) return Infinity
+
+  const currentDeposit = deposits[resourceType]
+  if (currentDeposit <= 0) return 0
+
+  return currentDeposit / productionPerHour
+}
+
+/**
+ * 格式化耗尽时间为可读字符串
+ */
+export const formatDepletionTime = (hours: number): string => {
+  if (!isFinite(hours) || hours < 0) return '∞'
+  if (hours === 0) return '0'
+
+  const days = Math.floor(hours / 24)
+  const remainingHours = Math.floor(hours % 24)
+
+  if (days > 365) {
+    const years = Math.floor(days / 365)
+    return `${years}y+`
+  }
+
+  if (days > 0) {
+    return `${days}d ${remainingHours}h`
+  }
+
+  if (hours < 1) {
+    const minutes = Math.floor(hours * 60)
+    return `${minutes}m`
+  }
+
+  return `${remainingHours}h`
+}