config(claude): 角色路由 hook (dev/test/pm) + role-router 单测

- claude-config/hooks/role-router.mjs
  按 user prompt 关键词检测当前角色，注入推荐 agent hint
  - dev: 开发/实现/重构/修(复|bug)/dev/implement/refactor/fix/feature → executor/debugger
  - test: 测试/单测/回归/QA/test/regression/spec → qa-tester/test-engineer/verifier
  - pm: 产品/需求/排期/规划/PM/product/PRD/roadmap → planner/analyst/scientist
  支持多角色同时命中
- claude-config/hooks/role-router.test.mjs
  10 fixture 单测 (含 subprocess pipe integration), 10/10 PASS
- claude-config/settings.json.snapshot.20260426
  全局 settings.json 快照, hooks.UserPromptSubmit 接 keyword-detector + role-router
- claude-config/README.md
  设计/安装/测试 文档

来源: ralph US-3, a+b 融合方案 (211 中文 agents + 关键词 hook)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

claude-config/settings.json.snapshot.20260426

@@ -0,0 +1,41 @@
+{
+  "model": "opus[1m]",
+  "hooks": {
+    "UserPromptSubmit": [
+      {
+        "matcher": "",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hooks/find-node.sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hooks/keyword-detector.mjs"
+          },
+          {
+            "type": "command",
+            "command": "sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hooks/find-node.sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hooks/role-router.mjs"
+          }
+        ]
+      }
+    ],
+    "SessionStart": [],
+    "PreToolUse": [],
+    "PostToolUse": [],
+    "PostToolUseFailure": [],
+    "Stop": []
+  },
+  "statusLine": {
+    "type": "command",
+    "command": "sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hud/find-node.sh ${CLAUDE_CONFIG_DIR:-$HOME/.claude}/hud/omc-hud.mjs"
+  },
+  "enabledPlugins": {
+    "codex@openai-codex": true
+  },
+  "extraKnownMarketplaces": {
+    "openai-codex": {
+      "source": {
+        "source": "github",
+        "repo": "openai/codex-plugin-cc"
+      }
+    }
+  },
+  "skipDangerousModePermissionPrompt": true
+}