feat: add normalized document model and output writer

src/model.rs

@@ -0,0 +1,73 @@
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PrReviewDocument {
+    pub meta: PrMeta,
+    pub commits: Vec<CommitItem>,
+    pub diff_stat: DiffStat,
+    pub reviews: Vec<ReviewItem>,
+    pub threads: Vec<CommentThread>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct PrMeta {
+    pub repo: String,
+    pub pr_index: i64,
+    pub title: String,
+    pub state: String,
+    pub author: String,
+    pub base_branch: String,
+    pub head_branch: String,
+    pub created_at: String,
+    pub updated_at: String,
+    pub merged_at: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CommitItem {
+    pub sha: String,
+    pub short_sha: String,
+    pub title: String,
+    pub author: String,
+    pub date: String,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct DiffStat {
+    pub files_changed: usize,
+    pub additions: i64,
+    pub deletions: i64,
+    pub files: Vec<FileStat>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct FileStat {
+    pub path: String,
+    pub additions: i64,
+    pub deletions: i64,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct ReviewItem {
+    pub id: i64,
+    pub state: String,
+    pub reviewer: String,
+    pub submitted_at: Option<String>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CommentThread {
+    pub thread_id: String,
+    pub file_path: Option<String>,
+    pub line: Option<i64>,
+    pub root_comment: CommentItem,
+    pub replies: Vec<CommentItem>,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct CommentItem {
+    pub id: i64,
+    pub user: String,
+    pub created_at: String,
+    pub body: String,
+}