"""Web App 产物模式纯引擎：站点发现 / 构建 / 预览签名。

不 import app.*（harness 边界），路由层只做 HTTP 适配。
所有入口在能力不可用时返回结构化的"不可用"结果，绝不抛出影响主流程的异常。
"""

from deerflow.webapp.builder import SiteBuildRunner, get_site_build_runner
from deerflow.webapp.engine import (
    WebAppCapability,
    capability_status,
    find_sites,
    guess_site_mime,
    read_site_manifest,
    resolve_template_dir,
)
from deerflow.webapp.security import mint_preview_token, verify_preview_token

__all__ = [
    "SiteBuildRunner",
    "get_site_build_runner",
    "WebAppCapability",
    "capability_status",
    "find_sites",
    "guess_site_mime",
    "read_site_manifest",
    "resolve_template_dir",
    "mint_preview_token",
    "verify_preview_token",
]