fix(hands): add max_concurrent + timeout_secs fields + hand timeout enforcement

M3-04/M3-05 audit fixes:
- HandConfig: add max_concurrent (u32) and timeout_secs (u64) with serde defaults
- Kernel execute_hand: enforce timeout via tokio::time::timeout, cancel on expiry
- All 9 hand implementations: add max_concurrent: 0, timeout_secs: 0
- Agent createClone: pass soul field through to kernel
- Fix duplicate soul block in agent_create command

desktop/src/lib/kernel-agent.ts

@@ -36,6 +36,7 @@ export function installAgentMethods(ClientClass: { prototype: KernelClient }): v
         name: request.name,
         description: request.description,
         systemPrompt: request.systemPrompt,
+        soul: request.soul,
         provider: request.provider || 'anthropic',
         model: request.model || 'claude-sonnet-4-20250514',
         maxTokens: request.maxTokens || 4096,
@@ -77,12 +78,24 @@ export function installAgentMethods(ClientClass: { prototype: KernelClient }): v
     model?: string;
     personality?: string;
     communicationStyle?: string;
+    scenarios?: string[];
+    emoji?: string;
+    notes?: string;
     [key: string]: unknown;
   }): Promise<{ clone: any }> {
+    // Build soul content from personality data
+    const soulParts: string[] = [];
+    if (opts.personality) soulParts.push(`## 性格\n${opts.personality}`);
+    if (opts.communicationStyle) soulParts.push(`## 沟通风格\n${opts.communicationStyle}`);
+    if (opts.scenarios?.length) soulParts.push(`## 使用场景\n${opts.scenarios.join(', ')}`);
+    if (opts.notes) soulParts.push(`## 备注\n${opts.notes}`);
+    const soul = soulParts.length > 0 ? soulParts.join('\n\n') : undefined;
+
     const response = await this.createAgent({
       name: opts.name,
       description: opts.role,
       model: opts.model,
+      soul,
     });
     const clone = {
       id: response.id,
@@ -91,6 +104,8 @@ export function installAgentMethods(ClientClass: { prototype: KernelClient }): v
       model: opts.model,
       personality: opts.personality,
       communicationStyle: opts.communicationStyle,
+      emoji: opts.emoji,
+      scenarios: opts.scenarios,
       createdAt: new Date().toISOString(),
     };
     return { clone };

desktop/src/lib/kernel-types.ts

@@ -32,6 +32,7 @@ export interface CreateAgentRequest {
   name: string;
   description?: string;
   systemPrompt?: string;
+  soul?: string;
   provider?: string;
   model?: string;
   maxTokens?: number;