Storage

How a stored file becomes a URL a browser can fetch. The first-day mistake is picking the wrong one of the two — `File.Url` is for something anyone…

Mints a temporary, signed URL that lets an authorized browser fetch a PRIVATE app file — one stored outside `public/` — without carrying a login…

Turns an app-relative file path into the public URL a browser can fetch it from — `File.Url("public/x.png")` returns `/_osy/files/public/x.png`. Pure…