feat: initial project setup with gai tool

src/types.ts

@@ -0,0 +1,21 @@
+export interface Config {
+  apiKey: string;
+  apiBase: string;
+  model: string;
+  maxTokens: number;
+  temperature: number;
+}
+
+export interface FileEntry {
+  path: string;
+  status: string;
+  label: string;
+}
+
+export interface ProjectContext {
+  readme: string | null;
+  packageDescription: string | null;
+  structure: string | null;
+  recentCommits: string[];
+  diff: string;
+}