Refactor blog module and remove blog-related functionality

- Removed blog router and associated API endpoints.
- Deleted blog persistence functions and related query parameters.
- Removed blog schemas and models from the codebase.
- Introduced common crate for shared types, including DateTimeWithTimeZoneWrapper.
- Added Thought and Follow models with corresponding migrations.
- Updated dependencies in Cargo.toml files to reflect changes.
- Adjusted tests to remove references to the blog module.

thoughts-backend/tests/api/blog.rs

@@ -1,30 +0,0 @@
-use axum::{http::StatusCode, Router};
-use http_body_util::BodyExt;
-use serde_json::Value;
-
-use utils::testing::{make_get_request, make_post_request};
-
-pub(super) async fn test_post_blogs(app: Router) {
-    let response = make_post_request(
-        app,
-        "/blogs",
-        r#"{"author_id": 1, "title": "title", "content": "test"}"#.to_owned(),
-    )
-    .await;
-
-    assert_eq!(response.status(), StatusCode::CREATED);
-}
-
-pub(super) async fn test_get_blogs(app: Router) {
-    let response = make_get_request(app, "/blogs").await;
-    assert_eq!(response.status(), StatusCode::OK);
-
-    let body = response.into_body().collect().await.unwrap().to_bytes();
-    let result: Value = serde_json::from_slice(&body).unwrap();
-    assert_eq!(result["blogs"].as_array().unwrap().len(), 1);
-
-    let blog = &result["blogs"][0];
-    assert_eq!(blog["author_id"], 1);
-    assert_eq!(blog["title"], "title");
-    assert_eq!(blog["content"], "test");
-}

thoughts-backend/tests/api/mod.rs

@@ -1,11 +1,9 @@
 use api::setup_router;
 use utils::testing::setup_test_db;
 
-mod blog;
 mod root;
 mod user;
 
-use blog::*;
 use root::*;
 use user::*;
 
@@ -30,15 +28,3 @@ async fn user_main() {
     test_post_users_error(app.clone()).await;
     test_get_users(app).await;
 }
-
-#[tokio::test]
-async fn blog_main() {
-    let db = setup_test_db("sqlite::blog?mode=memory&cache=shared")
-        .await
-        .expect("Set up db failed!");
-
-    let app = setup_router(db);
-    test_post_users(app.clone()).await;
-    test_post_blogs(app.clone()).await;
-    test_get_blogs(app).await;
-}