feat: add policy bundles for defining max-grant-duration

max-grant-duration/1d/.manifest

@@ -0,0 +1 @@
+{ "roots": ["policy"] }

max-grant-duration/1d/policy.rego

@@ -0,0 +1,8 @@
+package time
+
+import data.abbey.functions
+
+allow[msg] {
+    functions.expire_after("24h")
+    msg := "granting access for 1 day"
+}

max-grant-duration/1h/.manifest

@@ -0,0 +1 @@
+{ "roots": ["policy"] }

max-grant-duration/1h/policy.rego

@@ -0,0 +1,8 @@
+package time
+
+import data.abbey.functions
+
+allow[msg] {
+    functions.expire_after("1h")
+    msg := "granting access for 1 hour"
+}

max-grant-duration/1w/.manifest

@@ -0,0 +1 @@
+{ "roots": ["policy"] }

max-grant-duration/1w/policy.rego

@@ -0,0 +1,8 @@
+package time
+
+import data.abbey.functions
+
+allow[msg] {
+    functions.expire_after("168h")
+    msg := "granting access for 1 week"
+}

max-grant-duration/8h/.manifest

@@ -0,0 +1 @@
+{ "roots": ["policy"] }

max-grant-duration/8h/policy.rego

@@ -0,0 +1,8 @@
+package time
+
+import data.abbey.functions
+
+allow[msg] {
+    functions.expire_after("8h")
+    msg := "granting access for 8 hours"
+}

src/abbey/functions/expire_after.rego

@@ -1,6 +1,6 @@
 package abbey.functions
 
-import future.keywords.if
+import rego.v1
 
 # METADATA
 # title: Expire After

src/abbey/functions/expire_after_test.rego

@@ -1,7 +1,7 @@
 package abbey.functions_test
 
 import data.abbey.functions
-import future.keywords.if
+import rego.v1
 
 test_after_expired_duration if {
 	not functions.expire_after("1m") with data.system.abbey.target.grant.approved_at as "2023-01-01T01:00:00Z"

src/abbey/functions/expire_at.rego

@@ -1,6 +1,6 @@
 package abbey.functions
 
-import future.keywords.if
+import rego.v1
 
 # METADATA
 # title: Expire At

src/abbey/functions/expire_at_test.rego

@@ -1,7 +1,7 @@
 package abbey.functions_test
 
 import data.abbey.functions
-import future.keywords.if
+import rego.v1
 
 test_after_expired_at_threshold if {
 	not functions.expire_at("2023-01-01T02:00:00Z") with data.system.abbey.target.grant.approved_at as "2023-01-01T01:00:00Z"

src/abbey/functions/member_of.rego

@@ -1,7 +1,6 @@
 package abbey.functions
 
-import future.keywords.if
-import future.keywords.in
+import rego.v1
 
 apps := [
 	"googleworkspace",

src/abbey/functions/member_of_test.rego

@@ -1,7 +1,7 @@
 package abbey.functions_test
 
 import data.abbey.functions
-import future.keywords.if
+import rego.v1
 
 fixture := {
 	"googleworkspace": {"groups": [