chore: add custom samesite options to auth cookies (#16885)

Allows controlling `samesite` cookie settings from the deployment config

enterprise/wsproxy/wsproxy.go

@@ -70,7 +70,7 @@ type Options struct {
 	TLSCertificates    []tls.Certificate
 
 	APIRateLimit           int
-	SecureAuthCookie       bool
+	CookieConfig           codersdk.HTTPCookieConfig
 	DisablePathApps        bool
 	DERPEnabled            bool
 	DERPServerRelayAddress string
@@ -310,8 +310,8 @@ func New(ctx context.Context, opts *Options) (*Server, error) {
 			Logger:                   s.Logger.Named("proxy_token_provider"),
 		},
 
-		DisablePathApps:  opts.DisablePathApps,
-		SecureAuthCookie: opts.SecureAuthCookie,
+		DisablePathApps: opts.DisablePathApps,
+		Cookies:         opts.CookieConfig,
 
 		AgentProvider:            agentProvider,
 		StatsCollector:           workspaceapps.NewStatsCollector(opts.StatsCollectorOptions),
@@ -362,7 +362,7 @@ func New(ctx context.Context, opts *Options) (*Server, error) {
 		},
 		// CSRF is required here because we need to set the CSRF cookies on
 		// responses.
-		httpmw.CSRF(s.Options.SecureAuthCookie),
+		httpmw.CSRF(s.Options.CookieConfig),
 	)
 
 	// Attach workspace apps routes.