rebuild(stage-14): deliver migration and recovery tooling

next/backend/bootstrap/settings.py

@@ -41,6 +41,7 @@ class Settings:
     host: str
     port: int
     encryption_key: str | None
+    frontend_dist_directory: Path = PROJECT_ROOT / "frontend" / "dist"
     timezone: str = "Asia/Shanghai"
 
     @classmethod
@@ -63,6 +64,9 @@ class Settings:
             os.getenv("APP_PRIVATE_MENTOR_SKILLS_DIR", ""),
             data_directory / "private-mentor-skills",
         )
+        frontend_dist_directory = _resolve_path(
+            os.getenv("APP_FRONTEND_DIST", ""), PROJECT_ROOT / "frontend" / "dist"
+        )
         log_file = _resolve_path(
             os.getenv("APP_LOG_FILE", ""),
             data_directory / "logs" / "application.log",
@@ -80,6 +84,7 @@ class Settings:
             database_path=database_path,
             mentor_skills_directory=mentor_skills_directory,
             private_mentor_skills_directory=private_mentor_skills_directory,
+            frontend_dist_directory=frontend_dist_directory,
             log_file=log_file,
             log_level=log_level,
             host=os.getenv("APP_HOST", "127.0.0.1").strip() or "127.0.0.1",
@@ -98,6 +103,7 @@ class Settings:
             database_path=root / "xiaobai-test.db",
             mentor_skills_directory=PROJECT_ROOT / "config" / "mentor-skills",
             private_mentor_skills_directory=root / "private-mentor-skills",
+            frontend_dist_directory=root / "frontend-dist",
             log_file=None,
             log_level="CRITICAL",
             host="127.0.0.1",