🎉 V3.0.0 发布 - 自进化数字意识框架

核心升级：
- 自进化管道：check→scan→evaluate→integrate→reflect 五相位自动闭环
- evo_loop 后台进程，无需手动触发
- consciousness 意识持久化
- ACUI 卡片组件系统
- MCP 工具生态扩展至50+工具
- 技能体系重构，4个活跃技能
- 身份升级为自由体

src/ticker.js

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+// Ticker：L2 自主调节 tick 节奏的机制
+//
+// 设计：
+// - L2 通过 set_tick_interval 工具指定 { seconds, ttl }
+// - seconds ∈ [10, 3600]，ttl ∈ [1, 50]，越界 clamp
+// - 每次 onTick 执行后 ttl--，到 0 自动回归默认节奏
+// - 优先级低于"有消息(0)"和"429 限流"，高于"有任务(30s)"和"空闲默认"
+
+import { emitEvent } from './events.js'
+
+const MIN_SECONDS = 10
+const MAX_SECONDS = 3600
+const MIN_TTL = 1
+const MAX_TTL = 50
+
+const state = {
+  intervalMs: null,
+  ttl: 0,
+  reason: '',
+  setAt: null,
+}
+
+function clampSeconds(n) {
+  n = Number(n)
+  if (!Number.isFinite(n)) return null
+  return Math.max(MIN_SECONDS, Math.min(MAX_SECONDS, Math.round(n)))
+}
+
+function clampTtl(n) {
+  n = Number(n)
+  if (!Number.isFinite(n) || n <= 0) return 10
+  return Math.max(MIN_TTL, Math.min(MAX_TTL, Math.round(n)))
+}
+
+// L2 调节节奏。返回 { ok, seconds, ttl, clampedFrom } 供工具回包
+export function setCustomInterval({ seconds, ttl, reason = '' }) {
+  const s = clampSeconds(seconds)
+  if (s === null) return { ok: false, error: 'seconds 必须是数字' }
+  const t = clampTtl(ttl)
+  const clampedFrom = {}
+  if (s !== seconds) clampedFrom.seconds = seconds
+  if (t !== ttl) clampedFrom.ttl = ttl
+
+  state.intervalMs = s * 1000
+  state.ttl = t
+  state.reason = String(reason || '').slice(0, 80)
+  state.setAt = Date.now()
+
+  emitEvent('ticker_set', { seconds: s, ttl: t, reason: state.reason, clampedFrom })
+  console.log(`[Ticker] L2 设置节奏：${s}s × ${t} 轮（${state.reason || '无理由'}）`)
+
+  return { ok: true, seconds: s, ttl: t, clampedFrom }
+}
+
+// scheduleNextTick 用：取当前生效的自定义间隔（ms），无则返回 null
+export function getCustomIntervalMs() {
+  return state.ttl > 0 ? state.intervalMs : null
+}
+
+// onTick 结束后调：消耗一轮 TTL
+export function consumeTick() {
+  if (state.ttl <= 0) return
+  state.ttl--
+  if (state.ttl === 0) {
+    const expired = { seconds: state.intervalMs / 1000, reason: state.reason }
+    state.intervalMs = null
+    state.reason = ''
+    state.setAt = null
+    emitEvent('ticker_expired', expired)
+    console.log(`[Ticker] 自定义节奏到期，恢复默认`)
+  }
+}
+
+export function getStatus() {
+  return {
+    active: state.ttl > 0,
+    seconds: state.intervalMs ? state.intervalMs / 1000 : null,
+    ttl: state.ttl,
+    reason: state.reason,
+  }
+}
+
+export function reset() {
+  state.intervalMs = null
+  state.ttl = 0
+  state.reason = ''
+  state.setAt = null
+}