US09-01: Serve the Documentation Inside the Application (#107)

photo_pipeline/api/app.py

@@ -53,6 +53,7 @@ from photo_pipeline.services.thumbnails import ThumbnailService
 from photo_pipeline.services.upload_batches import UploadBatchService
 
 FRONTEND_DIR = Path(__file__).resolve().parents[2] / "frontend"
+DOCS_DIR = Path(__file__).resolve().parents[2] / "docs"
 
 log = logging.getLogger(__name__)
 
@@ -151,4 +152,10 @@ def create_app(config: Config | None = None) -> FastAPI:
     # Static single-page app (hash-routed). Mounted last so /api/v1 wins.
     if FRONTEND_DIR.is_dir():
         app.mount("/app", StaticFiles(directory=FRONTEND_DIR, html=True), name="app")
+    # The manuals, as their own markdown files (US09-01). Unauthenticated for the
+    # same reason the application shell is: whoever cannot get past the access
+    # secret is exactly who needs the troubleshooting page, and no document holds
+    # anything a session would protect.
+    if DOCS_DIR.is_dir():
+        app.mount("/docs", StaticFiles(directory=DOCS_DIR), name="docs")
     return app