feat: 初始版本，圆角主题与首次管理员引导

app/blueprints/follows.py

@@ -0,0 +1,25 @@
+from flask import Blueprint, redirect, url_for
+from flask_login import login_required, current_user
+from ..extensions import db
+from ..models import Follow, User
+
+bp = Blueprint("follows", __name__, url_prefix="/follows")
+
+@bp.route("/follow/<int:user_id>")
+@login_required
+def follow(user_id):
+    target = User.query.get_or_404(user_id)
+    if target.id != current_user.id:
+        exist = Follow.query.filter_by(follower_id=current_user.id, followee_id=target.id).first()
+        if not exist:
+            db.session.add(Follow(follower_id=current_user.id, followee_id=target.id))
+            db.session.commit()
+    return redirect(url_for("users.profile", user_id=target.id))
+
+@bp.route("/unfollow/<int:user_id>")
+@login_required
+def unfollow(user_id):
+    target = User.query.get_or_404(user_id)
+    Follow.query.filter_by(follower_id=current_user.id, followee_id=target.id).delete()
+    db.session.commit()
+    return redirect(url_for("users.profile", user_id=target.id))