Fix CORS_ORIGINS env parsing crash (pydantic-settings NoDecode), bump 0.1.1

list[str] settings fed from env were JSON-decoded by pydantic-settings
before the field validator ran, so a plain string like
CORS_ORIGINS=http://host:5009 raised JSONDecodeError on startup.
Annotate list env fields with NoDecode and parse CSV/JSON in the validator.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

backend/config.py

@@ -3,9 +3,10 @@ from __future__ import annotations
 
 import secrets
 from functools import lru_cache
+from typing import Annotated
 
 from pydantic import field_validator
-from pydantic_settings import BaseSettings, SettingsConfigDict
+from pydantic_settings import BaseSettings, NoDecode, SettingsConfigDict
 
 
 class Settings(BaseSettings):
@@ -25,18 +26,22 @@ class Settings(BaseSettings):
     UPDATE_CHECK_INTERVAL_MINUTES: int = 60
 
     # Notifications (webhook URLs)
-    NOTIFY_WEBHOOKS: list[str] = []
+    NOTIFY_WEBHOOKS: Annotated[list[str], NoDecode] = []
 
     # Docker
     DOCKER_SOCKET: str = "/var/run/docker.sock"
     HOST_PROC_PATH: str = "/host_proc"
 
     # Host browser sandbox roots
-    ALLOWED_BROWSE_ROOTS: list[str] = ["/", "/mnt", "/media", "/srv", "/opt"]
+    ALLOWED_BROWSE_ROOTS: Annotated[list[str], NoDecode] = [
+        "/", "/mnt", "/media", "/srv", "/opt",
+    ]
     HOST_ROOT_PREFIX: str = ""  # e.g. "/host_root" when host / is bind-mounted
 
     # CORS
-    CORS_ORIGINS: list[str] = ["http://localhost:5009", "http://localhost:5173"]
+    CORS_ORIGINS: Annotated[list[str], NoDecode] = [
+        "http://localhost:5009", "http://localhost:5173",
+    ]
 
     # Server
     PORT: int = 5008
@@ -55,8 +60,13 @@ class Settings(BaseSettings):
             v = v.strip()
             if not v:
                 return []
-            if v.startswith("["):  # JSON list
+            if v.startswith("["):  # tolerate a JSON list too
-                return v
+                import json
+
+                try:
+                    return json.loads(v)
+                except json.JSONDecodeError:
+                    pass
             return [item.strip() for item in v.split(",") if item.strip()]
         return v
 

backend/main.py

@@ -31,7 +31,7 @@ async def lifespan(app: FastAPI):
     yield
 
 
-app = FastAPI(title="StackPilot", version="0.1.0", lifespan=lifespan)
+app = FastAPI(title="StackPilot", version="0.1.1", lifespan=lifespan)
 
 app.add_middleware(
     CORSMiddleware,