f7085f98be
Centralise static OAuth2 properties (auth URL, token URL, scopes, extra params, token endpoint auth) per provider in a single map. This removes the need to duplicate these values in deployment config; only ClientID and ClientSecret remain configurable. Introduces ApplyProviderDefaults to set redirect URI and provider defaults onto an OAuth2Connector at wiring time. Signed-off-by: Aurélien Sibiril <81782+aureliensibiril@users.noreply.github.com>