feat: 初始化项目结构与核心文件

- 添加项目配置文件（tsconfig.json、bunfig.toml、.gitignore、.env.example）
- 创建文档架构图（00runtime.png 至 08-state-data-flow.png）
- 添加核心工具常量定义（FileEditTool、AgentTool、BashTool 等）
- 实现基础命令框架（help、exit、config、model 等）
- 添加 Ink TUI 组件库和布局引擎
- 包含内存管理、沙箱、shell 工具等基础工具类
- 设置预加载脚本和版本信息

src/query/config.ts

@@ -0,0 +1,46 @@
+import { getSessionId } from '../bootstrap/state.js'
+import { checkStatsigFeatureGate_CACHED_MAY_BE_STALE } from '../services/analytics/growthbook.js'
+import type { SessionId } from '../types/ids.js'
+import { isEnvTruthy } from '../utils/envUtils.js'
+
+// -- config
+
+// Immutable values snapshotted once at query() entry. Separating these from
+// the per-iteration State struct and the mutable ToolUseContext makes future
+// step() extraction tractable — a pure reducer can take (state, event, config)
+// where config is plain data.
+//
+// Intentionally excludes feature() gates — those are tree-shaking boundaries
+// and must stay inline at the guarded blocks for dead-code elimination.
+export type QueryConfig = {
+  sessionId: SessionId
+
+  // Runtime gates (env/statsig). NOT feature() gates — see above.
+  gates: {
+    // Statsig — CACHED_MAY_BE_STALE already admits staleness, so snapshotting
+    // once per query() call stays within the existing contract.
+    streamingToolExecution: boolean
+    emitToolUseSummaries: boolean
+    isAnt: boolean
+    fastModeEnabled: boolean
+  }
+}
+
+export function buildQueryConfig(): QueryConfig {
+  return {
+    sessionId: getSessionId(),
+    gates: {
+      streamingToolExecution: checkStatsigFeatureGate_CACHED_MAY_BE_STALE(
+        'tengu_streaming_tool_execution2',
+      ),
+      emitToolUseSummaries: isEnvTruthy(
+        process.env.CLAUDE_CODE_EMIT_TOOL_USE_SUMMARIES,
+      ),
+      isAnt: process.env.USER_TYPE === 'ant',
+      // Inlined from fastMode.ts to avoid pulling its heavy module graph
+      // (axios, settings, auth, model, oauth, config) into test shards that
+      // didn't previously load it — changes init order and breaks unrelated tests.
+      fastModeEnabled: !isEnvTruthy(process.env.CLAUDE_CODE_DISABLE_FAST_MODE),
+    },
+  }
+}