feat(agent): add profile system and improve tools

- Add Agent Profile module for managing agent identity, soul, tools,
  memory, and bootstrap configuration
- Add profile CLI (pnpm agent:profile) for creating/listing/showing profiles
- Default sessionId to UUIDv7 instead of "default"
- Expose Agent.sessionId as public readonly property
- Improve exec/process tools error handling (no more crashes on spawn errors)
- Add 'output' action to process tool for reading stdout/stderr
- Better tool descriptions to guide agent in choosing exec vs process

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/agent/profile/index.ts

@@ -0,0 +1,155 @@
+/**
+ * Agent Profile 模块
+ *
+ * 管理 agent 的身份、人格、记忆等配置
+ */
+
+import type { AgentProfile, CreateProfileOptions, ProfileManagerOptions } from "./types.js";
+import { DEFAULT_TEMPLATES } from "./templates.js";
+import {
+  ensureProfileDir,
+  getProfileDir,
+  loadProfile,
+  profileExists,
+  saveProfile,
+} from "./storage.js";
+
+export { type AgentProfile, type CreateProfileOptions, type ProfileManagerOptions } from "./types.js";
+export { DEFAULT_TEMPLATES } from "./templates.js";
+export { getProfileDir, profileExists } from "./storage.js";
+
+/**
+ * 创建新的 Agent Profile
+ *
+ * @param profileId - Profile ID
+ * @param options - 创建选项
+ * @returns 创建的 AgentProfile
+ */
+export function createAgentProfile(
+  profileId: string,
+  options?: CreateProfileOptions,
+): AgentProfile {
+  const { baseDir, useTemplates = true } = options ?? {};
+
+  // 确保目录存在
+  ensureProfileDir(profileId, { baseDir });
+
+  // 创建 profile
+  const profile: AgentProfile = {
+    id: profileId,
+  };
+
+  // 如果使用模板，填充默认内容
+  if (useTemplates) {
+    profile.soul = DEFAULT_TEMPLATES.soul;
+    profile.identity = DEFAULT_TEMPLATES.identity;
+    profile.tools = DEFAULT_TEMPLATES.tools;
+    profile.memory = DEFAULT_TEMPLATES.memory;
+    profile.bootstrap = DEFAULT_TEMPLATES.bootstrap;
+
+    // 保存到文件
+    saveProfile(profile, { baseDir });
+  }
+
+  return profile;
+}
+
+/**
+ * 加载 Agent Profile
+ *
+ * @param profileId - Profile ID
+ * @param options - 加载选项
+ * @returns AgentProfile，如果不存在返回 undefined
+ */
+export function loadAgentProfile(
+  profileId: string,
+  options?: { baseDir?: string | undefined },
+): AgentProfile | undefined {
+  if (!profileExists(profileId, options)) {
+    return undefined;
+  }
+  return loadProfile(profileId, options);
+}
+
+/**
+ * 加载或创建 Agent Profile
+ *
+ * @param profileId - Profile ID
+ * @param options - 选项
+ * @returns AgentProfile
+ */
+export function getOrCreateAgentProfile(
+  profileId: string,
+  options?: CreateProfileOptions,
+): AgentProfile {
+  const existing = loadAgentProfile(profileId, options);
+  if (existing) {
+    return existing;
+  }
+  return createAgentProfile(profileId, options);
+}
+
+/**
+ * Profile Manager - 用于管理单个 profile 的类
+ */
+export class ProfileManager {
+  private readonly profileId: string;
+  private readonly baseDir: string | undefined;
+  private profile: AgentProfile | undefined;
+
+  constructor(options: ProfileManagerOptions) {
+    this.profileId = options.profileId;
+    this.baseDir = options.baseDir;
+  }
+
+  /** 获取 profile，如果未加载则加载 */
+  getProfile(): AgentProfile | undefined {
+    if (!this.profile) {
+      this.profile = loadAgentProfile(this.profileId, { baseDir: this.baseDir });
+    }
+    return this.profile;
+  }
+
+  /** 获取或创建 profile */
+  getOrCreateProfile(useTemplates = true): AgentProfile {
+    if (!this.profile) {
+      this.profile = getOrCreateAgentProfile(this.profileId, {
+        baseDir: this.baseDir,
+        useTemplates,
+      });
+    }
+    return this.profile;
+  }
+
+  /** 构建 system prompt */
+  buildSystemPrompt(): string {
+    const profile = this.getProfile();
+    if (!profile) {
+      return "";
+    }
+
+    const parts: string[] = [];
+
+    if (profile.identity) {
+      parts.push(profile.identity);
+    }
+
+    if (profile.soul) {
+      parts.push(profile.soul);
+    }
+
+    if (profile.tools) {
+      parts.push(profile.tools);
+    }
+
+    if (profile.memory) {
+      parts.push(profile.memory);
+    }
+
+    if (profile.bootstrap) {
+      parts.push(profile.bootstrap);
+    }
+
+    return parts.join("\n\n");
+  }
+}