feat(persona,model,loop): 人格 thinking 配置 + 5 个死字段接线 + 推理旋钮（按 provider 映射）

按 DevDocs/design/01 §2.1/§2.2 与 design/04 §3.2 实现（规格含联网核过的官方依据：思考内容刻意不角色化、不写分步思考指令、思考控制只走参数级）。
- 人格 schema 新增 thinking：budgetTokens / effort / showToUser(*bool，省略=nil=保持现行为，显式 false=只落库) / mode(default|on|off→Enable 三态)；非法 mode/负预算 → ErrInvalidThinking（不静默）
- 5 个死字段接上注入：personality→values→speechStyle→catchphrase→background 拼为独立段落（带【】小标题，空值不拼）；**全空时输出与旧实现逐字节一致**（有专门测试）
- model.Request 新增 Thinking{ BudgetTokens, Enable } 与 ReasoningEffort；新增 model/reasoning.go：厂商识别（模型名→baseURL 兜底）、取值白名单（OpenAI 系 none…max / DeepSeek low|high|max）、非法值降级+WARN、**不支持一律 WARN 而非静默**；Anthropic 映射 thinking{budget_tokens} 并**保证 budget<max_tokens**（不足时抬高 max_tokens+WARN，正是历史上思考吃光预算→空回复那个坑）
- loop：新增 Options.ThinkingShowToUser(*bool) 仅门控 thinking_* 帧（正文/工具帧不受影响）；场景级 mute 语义不变
- 补一处任务清单外但必需的接线：persona→model.Request 的 thinking 映射（否则 budget/effort/mode 会变成新的死字段）；showToUser 刻意不产生 Thinking（纯呈现开关）
- 管理端：personaUpsertRequest 补 thinking DTO + 校验（400）；PUT 省略时**保留已存块**（防旧客户端抹配置）；写侧 yaml round-trip 已验证
- Docs/api-client v0.40→v0.41（可选请求字段）
- 测试：26 个新用例（loader 解析/拼接逐字节/映射、anthropic 非流式+流式预算约束、openai 透传/降级/丢弃、Qwen 诚实 WARN、loop 门控、DTO round-trip）；3 次变异验证（省略与 false 混同 / 去掉预算约束 / 短路门控 各自 FAIL）
- 验收：go build/vet/test 全绿（含 57 包）+ linux/darwin 交叉编译 + 前端 build；唯一 FAIL 是既有 flake TestInterruptCancelsTurnAndClearsPending（3/20 新代码 vs 3/20 纯 HEAD，已归因非本次引入）

cmd/cyrene/wire.go

@@ -410,28 +410,33 @@ func (a *app) wireRuntime() error {
 	// emotion machine and affection move, and the returned mood label is written
 	// onto Result.Mood and the assistant message (design/16 §3.3).
 	a.emotion = a.buildEmotionObserver()
+	// Reasoning knobs from the default persona (budget / effort / thinking broadcast).
+	thinking, reasoningEffort, thinkingShow := a.defaultThinkingOptions()
 
 	a.loop = loop.New(loop.Options{
-		Agent:         ag,
-		Tools:         a.dispatcher,
-		Capacity:      capDecider,
-		OnCapacity:    a.onCapacity,
-		OnAudit:       a.onToolAudit,
-		OnTurnEnd:     a.onTurnEnd,
-		Memory:        store,
-		Retriever:     a.retriever,
-		Extractor:     a.buildMemoryExtractor(personaID),
-		Checkpoint:    checkpoint,
-		Tracer:        tracer,
-		Flow:          flowPub,
-		Guards:        guards,
-		PersonaID:     personaID,
-		Timezone:      a.cfg.Timezone,
-		MaxRounds:     defaultMaxRounds,
-		WorkingMemory: memory.NewWorkingMemory(0),
-		OnStream:      a.streamChunk,
-		Vision:        visionResolver,
-		Log:           logger.WithSource(a.log, "runtime/loop"),
+		Agent:              ag,
+		Tools:              a.dispatcher,
+		Capacity:           capDecider,
+		OnCapacity:         a.onCapacity,
+		OnAudit:            a.onToolAudit,
+		OnTurnEnd:          a.onTurnEnd,
+		Memory:             store,
+		Retriever:          a.retriever,
+		Extractor:          a.buildMemoryExtractor(personaID),
+		Checkpoint:         checkpoint,
+		Tracer:             tracer,
+		Flow:               flowPub,
+		Guards:             guards,
+		PersonaID:          personaID,
+		Timezone:           a.cfg.Timezone,
+		MaxRounds:          defaultMaxRounds,
+		WorkingMemory:      memory.NewWorkingMemory(0),
+		OnStream:           a.streamChunk,
+		Vision:             visionResolver,
+		Thinking:           thinking,
+		ReasoningEffort:    reasoningEffort,
+		ThinkingShowToUser: thinkingShow,
+		Log:                logger.WithSource(a.log, "runtime/loop"),
 	})
 
 	a.scheduler = orchestration.New(orchestration.Options{
@@ -801,18 +806,13 @@ func (a *app) defaultPersonaID() string {
 	return "cyrene"
 }
 
-// defaultInstructions returns the default persona's system prompt, falling back
-// to its role text or a minimal instruction when neither is set.
+// defaultInstructions returns the default persona's system prompt followed by the
+// personality/values/speechStyle/catchphrase/background sections (design/01
+// §2.2), falling back to its role text or a minimal instruction when neither is
+// set.
 func (a *app) defaultInstructions() string {
-	if c, ok := a.personas.DefaultCharacter(); ok {
-		if p, ok := a.personas.Persona(c.PersonaID); ok {
-			if p.Identity.SystemPrompt != "" {
-				return p.Identity.SystemPrompt
-			}
-			if p.Identity.Role != "" {
-				return p.Identity.Role
-			}
-		}
+	if p, ok := a.defaultPersona(); ok {
+		return instructionsFromPersona(p)
 	}
 	return fallbackInstruction
 }