add: entities and folders, post entity poorly described

Comments/comment_contract.go

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+package Comments
+
+type Comments struct {
+	authorId string
+	text     string
+	likes    int
+	dislikes int
+}

Forums/forum_contract.go

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+package Forums
+
+type Forum struct {
+	threads []string
+}

Models/categories.json

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+{
+  "categories": [
+    {
+      "id": 1,
+      "category": "travel"
+    },
+    {
+      "id": 2,
+      "category": "technology"
+    },
+    {
+      "id": 3,
+      "category": "business"
+    },
+    {
+      "id": 4,
+      "category": "lifestyle"
+    },
+    {
+      "id": 5,
+      "category": "personal development"
+    },
+    {
+      "id": 6,
+      "category": "entertainment"
+    },
+    {
+      "id": 7,
+      "category": "health and fitness"
+    },
+    {
+      "id": 8,
+      "category": "food and drink"
+    },
+    {
+      "id": 9,
+      "category": "art and culture"
+    },
+    {
+      "id": 10,
+      "category": "parenting"
+    }
+  ]
+}

Posts/post_contract.go

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+package Posts
+
+import (
+	guuid "github.com/google/uuid"
+	"github.com/nspcc-dev/neo-go/pkg/interop/native/std"
+	"github.com/nspcc-dev/neo-go/pkg/interop/storage"
+)
+
+type Post struct {
+	threadId string
+	id       string
+	header   string
+	text     string
+	authorId string
+	hashTags []string
+	category string
+	likes    int
+	dislikes int
+}
+
+const storeURLKey = "storeURL"
+
+func _deploy(data interface{}, isUpdate bool) {
+	if isUpdate {
+		return
+	}
+
+	ctx := storage.GetContext()
+	storeURL := "https://codeberg.org/NaMe2te/Blog/src/branch/master/Posts/posts_storage.json"
+	storage.Put(ctx, storeURLKey, storeURL)
+}
+func NewPost(authorId string, text string, hashTags []string, threadId string) {
+	ctx := storage.GetContext()
+
+	post := Post{
+		text:     text,
+		hashTags: hashTags,
+		authorId: authorId,
+		dislikes: 0,
+		Likes:    0,
+		category: "none",
+		threadId: threadId,
+		id:       guuid.New(),
+	}
+	storage.Put(ctx, post.id, std.Serialize(post))
+}
+func GetPost(postId string) Post {
+
+	ctx := storage.GetReadOnlyContext()
+	data := storage.Get(ctx, postId)
+	if data == nil {
+		panic("player not found")
+	}
+
+	return std.Deserialize(data.([]byte)).(Post)
+
+}
+
+func RatePost(isLike bool, postId string) {
+	post := GetPost(postId)
+	if isLike {
+		post.likes++
+	} else {
+		post.dislikes++
+	}
+	storage.Put(ctx, post.id, std.Serialize(post))
+}

Users/user_contract.go

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+package Users
+
+type User struct {
+	name     string
+	surname  string
+	login    string
+	password string
+}