feat: move core to tui and begin grpc work

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

crates/hyperlog-protos/proto/hyperlog.proto

@@ -3,14 +3,45 @@ syntax = "proto3";
 package hyperlog;
 
 service Graph {
-  rpc SayHello (HelloRequest) returns (HelloReply);
+  rpc Get(GetRequest) returns (GetReply);
 }
 
-message HelloRequest {
-  string name = 1;
+
+message UserGraphItem {
+  map<string, GraphItem> items = 1;
+    
+}
+message SectionGraphItem {
+  map<string, GraphItem> items = 1;
 }
 
-message HelloReply {
-  string message = 1;
+enum ItemState {
+  UNSPECIFIED = 0;
+  NOT_DONE = 1;
+  DONE = 2;
+}
+
+message ItemGraphItem {
+  string title = 1;
+  string description = 2;
+  ItemState state = 3;
+}
+
+message GraphItem {
+  string path = 1;
+  oneof contents {
+    UserGraphItem user = 2;
+    SectionGraphItem section = 3;
+    ItemGraphItem item = 4;
+  }
+}
+
+message GetRequest {
+  string root = 1;
+  repeated string paths = 2;
+}
+
+message GetReply {
+  repeated GraphItem items = 1;
 }