fix: Resolve frontend dir

Could be in different places depending on how we install chronowarden

Assisted-By: Anthropic:claude-opus-4.8

Author: fajfer

README.md

@@ -44,17 +44,17 @@ Join us on [Matrix](https://matrix.to/#/#chronowarden:reszka.org) to discuss and
 ```bash
 docker run --network=host --rm -p 8000:8000 \
     -v $(pwd)/config.yaml:/data/config.yaml \
-  ghcr.io/fajfer/chronowarden:v0.2.0
+  ghcr.io/fajfer/chronowarden:v0.2.1
 ```
 
 Add `-v $(pwd)/chronowarden.db:/app/chronowarden.db` if you already have a DB
 
 #### Building image
 Production (default) — distroless, no shell, 86MB \
-`docker build -t fajfer/chronowarden:0.2.0 .`
+`docker build -t fajfer/chronowarden:0.2.1 .`
 
 Development — full shell, git, --reload, 286MB \
-`docker build --target dev -t fajfer/chronowarden:0.2.0-dev .`
+`docker build --target dev -t fajfer/chronowarden:0.2.1-dev .`
 
 ### Prerequisites
 

chronowarden/app.py

@@ -110,7 +110,21 @@ async def root() -> dict[str, str]:
 
 # Serve SvelteKit static frontend in production.
 # The build directory is created by `npm run build` with adapter-static.
-_FRONTEND_DIR = Path(__file__).resolve().parent.parent / "frontend" / "build"
+def _resolve_frontend_dir() -> Path:
+    """Return the first existing frontend build directory."""
+    override = os.environ.get("CHRONOWARDEN_FRONTEND_DIR")
+    candidates = [
+        Path(override) if override else None,
+        Path(__file__).resolve().parent.parent / "frontend" / "build",
+        Path("/app/frontend/build"),
+    ]
+    for candidate in candidates:
+        if candidate is not None and candidate.is_dir():
+            return candidate
+    return Path("/app/frontend/build")
+
+
+_FRONTEND_DIR = _resolve_frontend_dir()
 
 if _FRONTEND_DIR.is_dir():
 

pyproject.toml

@@ -4,7 +4,7 @@
 
 [project]
 name = "chronowarden"
-version = "0.2.0"
+version = "0.2.1"
 description = "Cloud-native secret expiration monitoring service"
 readme = "README.md"
 requires-python = ">=3.12"