feat: add approval step

Signed-off-by: kjuulh <contact@kjuulh.io>

interface/proto/forest/v1/triggers.proto

@@ -0,0 +1,79 @@
+syntax = "proto3";
+
+package forest.v1;
+
+import "forest/v1/releases.proto";
+
+message Trigger {
+    string id = 1;
+    string name = 2;
+    bool enabled = 3;
+    optional string branch_pattern = 4;
+    optional string title_pattern = 5;
+    optional string author_pattern = 6;
+    optional string commit_message_pattern = 7;
+    optional string source_type_pattern = 8;
+    repeated string target_environments = 9;
+    repeated string target_destinations = 10;
+    bool force_release = 11;
+    string created_at = 12;
+    string updated_at = 13;
+    // When true, trigger the project's release pipeline instead of
+    // deploying directly to target destinations/environments.
+    bool use_pipeline = 14;
+}
+
+message CreateTriggerRequest {
+    Project project = 1;
+    string name = 2;
+    optional string branch_pattern = 3;
+    optional string title_pattern = 4;
+    optional string author_pattern = 5;
+    optional string commit_message_pattern = 6;
+    optional string source_type_pattern = 7;
+    repeated string target_environments = 8;
+    repeated string target_destinations = 9;
+    bool force_release = 10;
+    bool use_pipeline = 11;
+}
+message CreateTriggerResponse {
+    Trigger trigger = 1;
+}
+
+message UpdateTriggerRequest {
+    Project project = 1;
+    string name = 2;
+    optional bool enabled = 3;
+    optional string branch_pattern = 4;
+    optional string title_pattern = 5;
+    optional string author_pattern = 6;
+    optional string commit_message_pattern = 7;
+    optional string source_type_pattern = 8;
+    repeated string target_environments = 9;
+    repeated string target_destinations = 10;
+    optional bool force_release = 11;
+    optional bool use_pipeline = 12;
+}
+message UpdateTriggerResponse {
+    Trigger trigger = 1;
+}
+
+message DeleteTriggerRequest {
+    Project project = 1;
+    string name = 2;
+}
+message DeleteTriggerResponse {}
+
+message ListTriggersRequest {
+    Project project = 1;
+}
+message ListTriggersResponse {
+    repeated Trigger triggers = 1;
+}
+
+service TriggerService {
+    rpc CreateTrigger(CreateTriggerRequest) returns (CreateTriggerResponse);
+    rpc UpdateTrigger(UpdateTriggerRequest) returns (UpdateTriggerResponse);
+    rpc DeleteTrigger(DeleteTriggerRequest) returns (DeleteTriggerResponse);
+    rpc ListTriggers(ListTriggersRequest) returns (ListTriggersResponse);
+}