feat(phase2): complete P1 tasks - Channels, Triggers, Skills CRUD and UI enhancements

Phase 2 P1 Tasks Completed:

API Layer (gateway-client.ts, gatewayStore.ts):
- Add Channels CRUD: getChannel, createChannel, updateChannel, deleteChannel
- Add Triggers CRUD: getTrigger, createTrigger, updateTrigger, deleteTrigger
- Add Skills CRUD: getSkill, createSkill, updateSkill, deleteSkill
- Add Scheduled Tasks API: createScheduledTask, deleteScheduledTask, toggleScheduledTask
- Add loadModels action for dynamic model list

UI Components:
- ModelsAPI.tsx: Dynamic model loading from API with loading/error states
- SchedulerPanel.tsx: Full CreateJobModal with cron/interval/once scheduling
- SecurityStatus.tsx: Loading states, error handling, retry functionality
- WorkflowEditor.tsx: New workflow creation/editing modal (new file)
- WorkflowHistory.tsx: Workflow execution history viewer (new file)
- WorkflowList.tsx: Integrated editor and history access

Configuration:
- Add 4 Hands TOML configs: clip, collector, predictor, twitter

Documentation (SYSTEM_ANALYSIS.md):
- Update API coverage: 65% → 89% (53/62 endpoints)
- Update UI completion: 85% → 92%
- Mark Phase 2 P1 tasks as completed
- Update technical debt cleanup status

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

hands/twitter.HAND.toml

@@ -0,0 +1,156 @@
+# Twitter Hand - Twitter/X 自动化能力包
+#
+# OpenFang Hand 配置
+# 这个 Hand 提供 Twitter/X 平台的自动化操作和互动能力
+
+[hand]
+name = "twitter"
+version = "1.0.0"
+description = "Twitter/X 自动化能力包 - 发推文、搜索、分析和互动"
+author = "ZCLAW Team"
+
+# Hand 类型
+type = "communication"
+
+# 是否需要人工审批才能执行
+# 发推文等敏感操作需要审批
+requires_approval = true
+
+# 默认超时时间（秒）
+timeout = 120
+
+# 最大并发执行数
+max_concurrent = 3
+
+# 能力标签
+tags = ["twitter", "social", "automation", "engagement", "marketing"]
+
+[hand.config]
+# API 配置
+api_version = "v2"
+rate_limit_mode = "strict"  # strict, relaxed
+
+# 发推配置
+max_tweet_length = 280
+auto_shorten_urls = true
+url_shortener = "none"  # none, bitly, custom
+
+# 搜索配置
+search_max_results = 100
+search_include_metrics = true
+
+# 互动配置
+max_daily_likes = 50
+max_daily_retweets = 25
+max_daily_follows = 30
+
+# 安全设置
+allow_sensitive_content = false
+filter_spam = true
+
+[hand.triggers]
+# 触发器配置
+manual = true
+schedule = true
+webhook = true
+
+# 事件触发器
+[[hand.triggers.events]]
+type = "schedule.cron"
+pattern = "0 9,12,18 * * *"  # 每天3次
+priority = 5
+
+[[hand.triggers.events]]
+type = "chat.intent"
+pattern = "推特|发推|tweet|twitter|x\\.com"
+priority = 5
+
+[hand.permissions]
+# 权限要求
+requires = [
+  "twitter.read",
+  "twitter.write",
+  "twitter.engage"
+]
+
+# RBAC 角色要求
+roles = ["operator.read", "operator.write", "social.manage"]
+
+# 速率限制（严格遵循 Twitter API 限制）
+[hand.rate_limit]
+max_requests = 100
+window_seconds = 900  # 15 minutes
+
+# 审计配置
+[hand.audit]
+log_inputs = true
+log_outputs = true
+retention_days = 90  # 社交媒体操作保留更长时间
+
+# 参数定义
+[[hand.parameters]]
+name = "action"
+label = "操作类型"
+type = "select"
+required = true
+options = ["post", "search", "analyze", "engage"]
+description = "要执行的 Twitter 操作"
+
+[[hand.parameters]]
+name = "content"
+label = "内容"
+type = "textarea"
+required = false
+description = "推文内容或搜索查询"
+
+[[hand.parameters]]
+name = "schedule"
+label = "计划时间"
+type = "text"
+required = false
+description = "ISO 日期时间或 'now'"
+
+[[hand.parameters]]
+name = "mediaUrls"
+label = "媒体 URL"
+type = "text"
+required = false
+description = "附加媒体的 URL（逗号分隔，最多4个）"
+
+# 工作流步骤（根据操作类型）
+[[hand.workflow]]
+id = "validate"
+name = "验证请求"
+description = "检查操作权限和参数有效性"
+
+[[hand.workflow]]
+id = "prepare"
+name = "准备内容"
+description = "处理内容、缩短 URL、附加媒体"
+
+[[hand.workflow]]
+id = "execute"
+name = "执行操作"
+description = "调用 Twitter API 执行操作"
+
+[[hand.workflow]]
+id = "verify"
+name = "验证结果"
+description = "确认操作成功并记录结果"
+
+# 操作特定的工作流
+[[hand.workflow.post]]
+steps = ["validate", "prepare", "execute", "verify"]
+approval_required = true
+
+[[hand.workflow.search]]
+steps = ["validate", "execute", "verify"]
+approval_required = false
+
+[[hand.workflow.analyze]]
+steps = ["validate", "execute", "verify"]
+approval_required = false
+
+[[hand.workflow.engage]]
+steps = ["validate", "execute", "verify"]
+approval_required = true