feat: 重组为标准 skill 包结构 + 修复 verify.sh bash 3.2 兼容

- 新增 .claude/skills/new-project/SKILL.md（标准 skill 格式）
- install-skill.sh 安装时组装 SKILL.md + verify.sh，单一源无重复
- verify.sh 改用索引数组替代 declare -A，兼容 macOS bash 3.2
- log_pass/log_skip 显式 return 0，避免 set -e 下非 verbose 误退出
- README 改为 skill 优先；补全 copier.yml/scripts/template 入库

template/backend/.env.example.jinja

@@ -0,0 +1,33 @@
+# Backend 配置模板 —— 复制为 .env 后按需修改
+# .env 含真实配置，不提交 git；本文件是提交到 git 的模板
+
+# 运行环境：dev | prod
+ENV=dev
+
+# 服务端口
+PORT={{ backend_port }}
+
+{%- if include_agent %}
+
+# Agent WebSocket 地址
+AGENT_WS_URL=ws://localhost:{{ agent_port }}
+{%- endif %}
+
+# 工作目录
+WORK_DIR=~/{{ project_slug }}
+
+{%- if database == 'sqlite' %}
+
+# 数据库连接串（SQLite）
+DATABASE_URL=sqlite+aiosqlite:///~/{{ project_slug }}/{{ project_slug }}.db
+{%- elif database == 'postgresql' %}
+
+# 数据库连接串（PostgreSQL）
+DATABASE_URL=postgresql+asyncpg://user:password@localhost:5432/{{ project_slug }}
+{%- endif %}
+
+# 日志级别：DEBUG | INFO | WARNING | ERROR
+LOG_LEVEL=DEBUG
+
+# Swagger 文档（dev 开，prod 关）
+ENABLE_API_DOCS=true

template/backend/Dockerfile.jinja

@@ -0,0 +1,13 @@
+FROM python:{{ python_version }}-slim
+
+WORKDIR /app
+
+COPY --from=ghcr.io/astral-sh/uv:latest /uv /usr/local/bin/uv
+
+COPY pyproject.toml uv.lock ./
+RUN uv sync --frozen --no-dev
+
+COPY src ./src
+
+EXPOSE {{ backend_port }}
+CMD ["uv", "run", "python", "-m", "src.main"]

template/backend/pyproject.toml.jinja

@@ -0,0 +1,60 @@
+[project]
+name = "{{ project_slug }}-backend"
+version = "0.1.0"
+description = "{{ description }} — backend service"
+requires-python = ">={{ python_version }}"
+dependencies = [
+    "fastapi",
+    "uvicorn[standard]",
+    "sqlalchemy[asyncio]",
+{%- if database == 'sqlite' %}
+    "aiosqlite",
+    "alembic",
+{%- elif database == 'postgresql' %}
+    "asyncpg",
+    "alembic",
+{%- endif %}
+    "loguru",
+    "pydantic-settings",
+    "websockets",
+]
+
+[dependency-groups]
+dev = [
+    "pytest",
+    "httpx",
+    "pytest-asyncio",
+    "pytest-cov",
+    "mypy",
+    "ruff",
+    "pip-audit",
+]
+
+[tool.ruff.lint]
+select = ["E", "F", "N", "T20", "I", "C901", "ANN", "S", "PLR"]
+ignore = ["ANN101", "ANN102"]
+
+[tool.ruff.lint.per-file-ignores]
+"tests/**" = ["ANN"]
+
+[tool.mypy]
+strict = true
+ignore_missing_imports = true
+
+[tool.pytest.ini_options]
+addopts = "--cov=src --cov-report=term-missing --cov-fail-under=80"
+asyncio_mode = "auto"
+
+[tool.importlinter]
+root_packages = ["src"]
+
+[[tool.importlinter.contracts]]
+name = "Layered architecture"
+type = "layers"
+layers = ["src.infrastructure", "src.application", "src.domain"]
+
+[[tool.importlinter.contracts]]
+name = "Domain zero IO"
+type = "forbidden"
+source_modules = ["src.domain"]
+forbidden_modules = ["fastapi", "sqlalchemy", "httpx", "subprocess"]

template/backend/src/main.py.jinja

@@ -0,0 +1,27 @@
+from fastapi import FastAPI
+from loguru import logger
+
+from .core.config import get_settings
+from .core.logging import configure_logging
+
+settings = get_settings()
+configure_logging(settings.log_level)
+
+app = FastAPI(
+    title="{{ project_name }} Backend",
+    docs_url="/docs" if settings.enable_api_docs else None,
+    redoc_url="/redoc" if settings.enable_api_docs else None,
+    openapi_url="/openapi.json" if settings.enable_api_docs else None,
+)
+
+
+@app.get("/health")
+async def health() -> dict[str, str]:
+    return {"status": "ok"}
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    logger.info("Starting backend | port={}", settings.port)
+    uvicorn.run("src.main:app", host="0.0.0.0", port=settings.port, reload=True)