feat(wire): 地基④ wire.go 接 vision/voice/mcp/skill/exec 五个子系统，从死代码变可用

- vision：model.Router 绑 WithVisionModel(LLM_VISION_MODEL)；vision.RegisterTools(VisualTool/OCRTool)
  用同一 OpenAICompatibleAdapter（LLM_BASE_URL 为空则跳过并 Warn）。
- voice：voice.New(cfg.Voice) Chain（cloud→local→edge-tts/espeak→silent）存 a.voice。
- mcp：读 cfg.MCP.ServersJSON → 逐 Enabled server mcp.NewRegistry(...).Register(ctx)（Connect+
  DiscoverTools+RegisterTool），注册 KindMCP 能力 mcp:<name> 供 adminListPlugins 枚举；
  close() 中 Unregister 防 stdio 子进程孤儿；每 server 15s connect 超时，失败 Warn 跳过。
- skills：LoadDir(configs/skills) → skills.Register 为 KindSkill（Runner.Run 仍 ErrRunPending，
  执行留后续）。
- exec/terminal：新 terminalTool(sdk.Tool) 内部调 execProv.Execute，注册进 dispatcher；
  ExecSandbox.Enabled=false 默认拦截（授权默认关）。
- config：LLMConfig 增 VisionModel(LLM_VISION_MODEL)；新增 MCPConfig/ServersJSON(MCPSERVERS_JSON)。
- 拆 5 个辅助文件（vision.go/voice.go/mcp.go/skills.go/terminal_tool.go）避免 wire.go 膨胀；
  wire.go 最终 535 行。

默认配置下各子系统干净跳过不阻断启动（LLM_BASE_URL 已配则 vision 用主模型降级）。
go build/vet/test 全绿（46 包），gofmt 干净。

cmd/cyrene/wire.go

@@ -12,6 +12,7 @@ import (
 
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/auth"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/bus"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/capability/mcp"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/capability/registry"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/channel/session"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/config"
@@ -30,6 +31,7 @@ import (
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/memory/projectindex"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/memory/vector"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/model"
+	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/multimodal/voice"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/orchestration"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/orchestration/audit"
 	"git.yeij.top/AskaEth/Cyrene_v2/internal/runtime/persist"
@@ -79,7 +81,10 @@ type app struct {
 	loop       *loop.Loop
 	scheduler  *orchestration.Scheduler
 	tasks      *task.Manager
+	execProv   exec.Provider
 	iot        *iot.Manager
+	voice      *voice.Chain
+	mcpRegs    []*mcp.Registry
 	sessions   *session.SessionManager
 	automation *automations.Service
 	backthink  *backthink.Backthink
@@ -251,7 +256,8 @@ func (a *app) wireRuntime() error {
 		a.log.Warn("llm adapter unavailable", "error", aerr)
 		adapter = nil
 	}
-	router := model.NewRouter(model.DefaultModelForProvider(a.cfg.LLM))
+	router := model.NewRouter(model.DefaultModelForProvider(a.cfg.LLM),
+		model.WithVisionModel(a.cfg.LLM.VisionModel))
 
 	dispatcher, derr := tool.New(a.caps, tool.WithDefaultTimeout(defaultToolTimeout))
 	if derr != nil {
@@ -271,6 +277,7 @@ func (a *app) wireRuntime() error {
 			a.log.Warn("io tool register skipped", "tool", t.Name(), "error", rerr)
 		}
 	}
+	a.wireVision()
 
 	guards := guardrail.New()
 	instructions := a.defaultInstructions()
@@ -326,6 +333,7 @@ func (a *app) wireAuxiliary() error {
 	if err != nil {
 		return fmt.Errorf("exec provider: %w", err)
 	}
+	a.execProv = provider
 	tmgr, err := task.New(a.cfg, provider, a.log, task.WithBus(a.bus))
 	if err != nil {
 		return fmt.Errorf("task manager: %w", err)
@@ -365,6 +373,11 @@ func (a *app) wireAuxiliary() error {
 		return fmt.Errorf("backthink: %w", err)
 	}
 	a.backthink = bt
+
+	a.wireVoice()
+	a.wireMCP()
+	a.wireSkills()
+	a.wireTerminalTool()
 	return nil
 }
 
@@ -473,6 +486,9 @@ func (a *app) close(ctx context.Context) {
 	if a.gw != nil {
 		a.gw.Close()
 	}
+	for _, reg := range a.mcpRegs {
+		_ = reg.Unregister(ctx)
+	}
 	if a.tasks != nil {
 		_ = a.tasks.Close()
 	}